Diverse Activities Research Articles

Exploring the Therapeutic Potential of Theobroma cacao L.: Insights from In Vitro, In Vivo, and Nanoparticle Studies on Anti-Inflammatory and Anticancer Effects

Theobroma cacao L., commonly known as cocoa, has been an integral part of human culture and diet for thousands of years. However, recent scientific research has highlighted its potential therapeutic properties, particularly in the treatment of cancer and inflammatory diseases. This comprehensive review analyzes the anti-inflammatory and anticancer effects of Theobroma cacao extracts combined with nanoparticles using in vitro and in vivo studies. Its diverse biological activity can be attributed to its rich phytochemical profile, including polyphenols, flavonoids, and alkaloids. In vitro studies have found that cocoa extracts, alone or in combination with nanoparticles, inhibit cancer cell proliferation, induce apoptosis and modulate key signaling pathways in various cancer cell lines. The extracts have also been found to reduce tumor growth and enhance the efficacy of conventional chemotherapeutic agents, potentially reducing their side effects, in vivo. Its anti-inflammatory properties are based on its ability to modulate inflammatory mediators, inhibit NF-κB signaling, and regulate macrophage polarization. These effects have been observed in both cellular and animal models of inflammation. This review opens up new possibilities for future research and therapeutic applications, highlighting the potential of Theobroma cacao as a valuable complementary approach in the treatment and prevention of cancer and inflammatory diseases.

When creativity wakes up emotions: an illustration of a creative course for pre-service teacher training

In the current dynamic society, creativity stands as a crucial asset, empowering individuals to devise new and inventive solutions to navigate the shifts accompanying societal evolution. This trend significantly influences both the preparation of future educators and the ongoing professional growth of practicing teachers. It's essential to consider the connection between students' emotional experiences during the learning process to foster their creativity. The correlation between a person's emotional state and their creativity shows that both negative and positive emotions can influence creative expression. Furthermore, emotional intelligence (EI) is assumed to help prioritize thinking and manage emotions in different life situations, with the initial EI process being assessing and expressing of emotions. This study evaluates the emergence of emotions experienced by students in an academic context, focusing on action-research with Master’s students (n = 10), who are future teachers for Secondary schools in Switzerland. Throughout the creative course, participants utilized a Creative Process Report Diary (CRD) to document the emotions they experienced while engaging in the diverse creative activities. The findings of this study indicate that participants predominantly encountered positive emotions during creative activities, such as enthusiasm and pleasure. Initial emotions sometimes leaned towards the negative spectrum, characterized by frustration or fear. However, as the creative activity unfolded, these emotions evolved into more positive ones, such as pleasure or interest. This study contributes to our understanding of the interplay between emotions and creativity and provides insights into how managing these emotions can foster a productive and creative learning environment for future teachers, even though emotional intelligence was not directly tested in this research.

Comprehensive Insight into Green Synthesis Approaches, Structural Activity Relationship, and Therapeutic Potential of Pyrazolic Chalcone Derivative

Pyrazolic chalcone exhibits diverse therapeutic activities, including anti-inflammatory, antioxidant, antimicrobial, antitumor, and anti-diabetic properties. Structural activity relationship (SAR) studies play a crucial role in understanding the molecular aspects governing their biological effects, guiding the rational design of derivatives with enhanced efficacy and reduced side effects. This review provides an overview of pyrazolic chalcone derivatives, emphasizing their synthesis through both conventional and green methods. In comparison, conventional synthesis methods have been widely employed in the past for the production of pyrazolic chalcones, often relying on traditional chemical processes that may involve the use of hazardous reagents and generate significant waste. On the other hand, green synthesis methods, in harmony with the growing emphasis on sustainable practices in drug discovery, offer a more environmentally friendly alternative. Green synthesis typically involves the use of eco-friendly reagents, solvents, and energy-efficient processes, resulting in reduced environmental impact and improved resource efficiency. Overall, pyrazolic chalcone derivatives represent a promising class of compounds with significant potential for therapeutic applications.

Dynamic impact of different human activities on the distribution of organic ultraviolet absorbers in coastal aquatic environments: A case study in Beibu Gulf, South China Sea

The increasing environmental concern surrounding organic ultraviolet absorbers (OUVAs) has prompted heightened attention, particularly their presence in personal care products (organic ultraviolet filters, OUVFs) and industrial products (organic ultraviolet stabilizers, OUVSs). This study investigates the impact of human activities and environmental factors on the occurrence, spatiotemporal distribution, and ecological risk of eight commonly utilized OUVFs and OUVSs in the coastal region of Beibu Gulf, South China Sea. The study area is characterized by multiple functional zones with distinct human activities. Results reveal elevated concentrations of OUVAs during summer compared to winter, attributed to increased residential usage, tourist activities, industrial releases, and intensified ultraviolet (UV) radiation. Interestingly, the proportion of OUVFs increases during summer, while OUVSs decrease. Correlation analysis between OUVAs and sampling sites reveals that tourism and domestic wastewater are the main contributors to OUVF contamination in summer, whereas mariculture and port trade significantly impact OUVS contamination in winter. The ecological risk assessment indicates predominantly low or medium risk levels for most OUVAs in both local seawater and freshwater ecosystems. Nevertheless, OUVFs, with a particular focus on 4-methylbenzylidene camphor (4-MBC), and OUVSs, specifically 2-(2-hydroxy-5-methylphenyl) benzotriazole (UV-P), exhibit a heightened risk compared to alternative substances. These findings provide crucial insights into the development of targeted mitigation strategies for OUVAs, taking into account the varying contamination levels of OUVFs and OUVSs resulting from diverse human activities, aiming to protect the health of aquatic ecosystems in diverse functional zones.

Contact Risk Assessment in Dynamic Indoor Settings through Agent‐Based Modeling: A Spatially Explicit and Reproducible Approach

This study introduces an agent‐based model (ABM) pedestrian simulation tool to assess the risk of close contact (6 feet) in dynamic indoor environments, specifically in urban settings with diverse social activities and spatial structures. Our approach uses machine learning‐based sensitivity analysis (SA) to identify factors impacting the number of individual contacts, such as individual stay time and area. In addition, we conducted an in‐depth quantitative analysis to evaluate how specific factors, such as the strategic placement of obstacles, dwell time, and stay time near the entrances, mitigate the number of contacts. This analysis provides valuable insights for developing practical guidelines to curb contact risks in indoor environments. Lastly, we share the model, validation methods, and associated data as an open‐source Python library, complete with comprehensive documentation. This aims at fostering collaborative research and enables the application of our model across various scenarios, contributing to the development of spatially explicit models. Such efforts enhance the understanding of contact risks in urban indoor settings and promote joint research efforts, thus advancing the field through shared knowledge and tools.

Valorization of Fish Processing by-Products: Biological and Functional Properties of Bioactive Peptides

Abstract Purpose of Review This review explores the potential of fish by-products as a source of bioactive peptides for the food, pharmaceutical, and cosmetic industries. Focusing on their diverse bioactive and functional properties, it offers insights into their industrial utilization, contributing to a better understanding of their applications. Recent Findings Fish processing by-products, including wastewater and solid residues, serve as valuable sources of bioactive peptides exhibiting a remarkable range of biological activities, such as antioxidant, antimicrobial, and antihypertensive properties. These peptides exhibit a wide range of functional properties, such as solubility, water holding, fat binding, foaming, and emulsifying capacities. Moreover, they show significant potential for various industrial applications. Summary Bioactive peptides derived from fish by-products are attracting interest in multiple industries due to their diverse biological activities and functional properties. These peptides have emerged as a valuable and largely untapped resource, as they can be extracted from underutilized, or waste materials generated during fish processing operations. Graphical Abstract

Participation in diverse social activities predicts fewer depressive symptoms

Objectives: Engagement in a greater number and more diverse activities is associated with higher levels of well‑being. One reason may be that these activities provide opportunities for a variety of social interactions. To examine the importance of the social nature of daily activity, the current study examines the unique association between social activity variety and later depressive symptoms, after adjusting for non‑social activity variety. Method: Using data from the Health and Retirement Study (HRS), we included 5,160 adults in a cross‑sectional analysis from 2008 and 3,081 adults in a longitudinal analysis spanning 2008 to 2012, all of whom completed questionnaires on social activity participation and depressive symptoms. Results: Cross‑sectional findings indicated that social activity variety was related to lower severity of depressive symptoms, but not likelihood of having any depressive symptoms, after adjusting for health, sociodemographic covariates, and non‑social activity. Longitudinal results showed that participants with consistently high levels of social activity variety over four years experienced fewer depressive symptoms at follow‑up compared to those with low levels, even after adjusting for baseline depressive symptoms. Conclusion: Findings suggest that participation in a greater variety of social activities can be a protective factor against the severity of depressive symptoms.

A Comprehensive Review on the Synthesis of Mangiferin Derivatives and their Multiple Biological Activities

Mangiferin always draws the attention of traditional as well as modern medicinal chemists because of its ease of chemical derivatization and diverse biological activities, including anticancer, anti-inflammatory, neuroprotective, antidiabetic, analgesic, antimalarial, anticonvulsant, laxative, cardiotonic, hemopoietic, antioxidant, antimicrobial, antipsychotic, anticoagulant, and antihypertensive properties. This review focuses on a detailed and updated overview of the synthesis of mangiferin derivatives and their diverse biological activities, with examples from both patented and non-patented literature.

Phytochemical Diversity and Biological Effects of Juniperus Thurifera L., Essential Oil : A Comparative Study using In Vitro and In Silico Methods.

Juniperus thurifera L., a plant endemic to the Moroccan High Atlas Mountains, thrives in extreme climatic conditions, resulting in the production of valuable secondary metabolites. This study aims to elucidate the phytochemical diversity and biological activities of J. thurifera essential oil (JTEO) through a comparative analysis of samples from two distinct regions: Tensift-Al Haouz and Azilal, using both in vitro and in silico methods. Gas Chromatography-Mass Spectrometry (GC-MS) analysis revealed 21 components in the Tensift-Al Haouz JTEO (99.99 % of the oil) and 23 components in the Azilal JTEO (99.58 % of the oil), with oxygenated monoterpenes being the predominant compounds in both. The biological activities were assessed in vitro. Antioxidant properties, evaluated using DPPH, FRAP, and ABTS assays, showed significant activity in both oils. Antibacterial activity was tested against two strains of Gram-positive and two strains of Gram-negative bacteria, with both oils demonstrating notable bacterial growth inhibition. Enzymatic assays assessed the antidiabetic (α-amylase and α-glucosidase), dermo-protective (tyrosinase and elastase), and neuroprotective (AChE and BChE) activities. Both oils displayed substantial inhibitory effects across all tested activities, with variations attributed to their distinct chemical compositions. In silico analyses of six target enzymes confirmed significant binding affinities of the major compounds. Notably, 2,2'-Thiobis(6-tert-butyl-p-cresol) exhibited strong binding affinities with AChE, BChE, α-amylase, α-glucosidase, tyrosinase, and elastase, with binding energies ranging from -10.0 to -6.2 kcal/mol. These findings indicate that JTEO is a rich source of bioactive compounds with promising potential in pharmacological and cosmetic applications.

Unravelling motives and time use of additional leave in a flexible benefits plan: a mixed-methods case study in Belgium

Working-time reduction emerges as a promising measure for fostering a well-being economy, as it allows to reconsider time allocation between paid labour and other activities, potentially improving human and environmental well-being. This study investigates the motives for and planned time use of additional leave in the context of a flexible benefits plan, a specific form of working-time reduction that is increasingly popular among employees and employers. Despite its popularity, little is known about the rationale behind this choice and its potential to create socio-environmental benefits. Data were collected from a Belgian media company in 2022 using a mixed-methods approach, comprising a survey (N = 241) and semi-structured interviews (N = 13). The findings reveal that a mix of motives matters for choosing additional leave, including push, pull, personal and contextual factors, as well as the specifics of the flexible benefits plan. While the desire for more leisure emerges as a primary driver, difficulties in taking up the standard amount of leave present a key barrier. Employees plan to use their extra leave for diverse activities, mainly personal and social activities, household tasks, travel, and ad-hoc pursuits. However, preferences vary based on parental status, with couples having children primarily intending to use the leave for caregiving responsibilities. Notably, the primary activities for intended time use align with increased well-being and have relatively low environmental impacts, although positive effects may be partially offset for well-being (such as when paid work is replaced with unpaid care or household work) or for the environment (such as when spending the extra leave on environmentally intensive (travel) activities). These findings tentatively suggest that choosing additional leave in flexible benefits plans could contribute to a well-being economy.

Odd-Numbered Agaro-Oligosaccharides Produced by α-Neoagaro-Oligosaccharide Hydrolase Exert Antioxidant Activity in Human Dermal Fibroblasts

Agarases produce agar oligosaccharides with various structures exhibiting diverse physiological activities. α-Neoagaro-oligosaccharide hydrolase (α-NAOSH) specifically cleaves even-numbered neoagaro-oligosaccharides, producing 3,6-anhydro-l-galactose (l-AHG) and odd-numbered agaro-oligosaccharides (OAOSs). In this study, α-NAOSH from the agar-degrading marine bacterium Gilvimarinus agarilyticus JEA5 (Gaa117) was purified and characterized using an E. coli expression system to produce OAOSs and determine their bioactivity. Recombinant Gaa117 (rGaa117) showed maximum activity at pH 6.0 and 35 °C. rGaa117 retained >80% of its initial activity after 120 min at 30 °C. The activity was enhanced in the presence of Mn2+. Km, Vmax, and Kcat/Km values of the enzyme were 22.64 mM, 246.3 U/mg, and 15 s−1/mM, respectively. rGaa117 hydrolyzed neoagarobiose, neoagarotetraose, and neoagarohexaose, producing OAOSs that commonly contained l-AHG. Neoagarobiose and neoagarotetraose mixtures, designated NAO24, and mixtures of l-AHG and agarotriose, designated AO13, were obtained using recombinant rGaa16B (β-agarase) and rGaa117, respectively, and their antioxidant activities were compared. AO13 showed higher hydrogen peroxide-scavenging activity than NAO24 in human dermal fibroblasts in vitro because of structural differences: AOSs have d-galactose at the non-reducing end, whereas NAOSs have l-AHG. In conclusion, OAOSs exhibited high ROS-scavenging activity in H2O2-induced human dermal fibroblasts. They may be applicable in cosmetics and pharmaceuticals for prevention of skin aging.

Green synthesis of benzimidazole derivatives using copper(II)-supported on alginate hydrogel beads

The study addresses the challenge of developing sustainable and efficient catalytic systems for the synthesis of benzimidazole derivatives, which are of significant importance in the field of medicinal chemistry due to their diverse biological activities. The objective is to develop a recyclable and environmentally friendly catalyst utilizing copper(II)-loaded alginate hydrogel beads, which can facilitate the synthesis of these compounds while minimizing environmental impact. The preparation process entails crosslinking sodium alginate with copper(II) ions to form hydrogel beads, which are then washed and characterized through techniques such as scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), Inductively coupled plasma (ICP), and Zeta potential to analyses the morphology, composition and porosity of the beads. The catalytic performance is evaluated through recycling tests, which demonstrate the catalyst's ability to maintain selectivity and activity over multiple reaction cycles. The Cu(II)-Alg hydrogel beads were used for synthesizing substituted benzimidazole derivatives in a water-ethanol solvent at room temperature. This method offers significant advantages, including extremely mild reaction conditions, short reaction times (<1 h), high yields (70–94 %), and ease of processing. The most significant results indicate that the Cu(II)-alginate catalyst exhibits a high loading capacity and retains its catalytic efficiency for at least 3 cycles, thereby highlighting its potential for sustainable applications in organic synthesis.

Thiostrepton: multifaceted biological activities and its applications in treatment of inflammatory diseases.

Thiostrepton (TST) is a naturally occurring oligopeptide antibiotic with a demonstrated capacity to antagonize a broad spectrum of Gram-positive bacteria. It has been utilized as a safe antimicrobial agent in veterinary medicine. Despite its therapeutic potential, the clinical application of TST has been constrained by its poor solubility and bioavailability. However, an increasing number of studies indicate that TST possesses diverse pharmacological activities, including its significant role in microbe resistance and cancer countering. Notably, recent studies have pointed out that TST also possesses anti-inflammatory potential. It has exhibited promising therapeutic efficacy across various in vivo and in vitro disease models, including non-alcoholic fatty liver disease, inflammatory bowel disease, sepsis, psoriasis-like inflammation, and periodontitis. In this review, we describe the various pharmacological activities of TST, particularly its anti-inflammatory activity demonstrated in a variety of inflammatory diseases and the underlying mechanisms. These effects highlight the potential of TST as an anti-inflammatory agent for the treatment of inflammation diseases and for enhancing cellular therapies.

A Delphi-based exploration of factors impacting blood loss and operative time in robotic prostatectomy.

This study aims to investigate factors influencing the implementation of robotic-assisted radical surgery, with a specific focus on their effects on blood loss and operative time. Radical prostatectomy was chosen as the case study due to its complexity and diverse surgical activities. The study employed a three-round Delphi approach involving 25 surgeons from three countries: UK, Australia, and China. The collected data were analysed using non-parametric tests. The Delphi study showed significant correlations between the degree of difficulty and blood loss (Z = 2.698, ρ < 0.007), as well as between team coordination and blood loss (Z = 3.499, ρ < 0.0001). However, no significant relationship was found between operative time and blood loss. Surgeons reported that neurovascular bundle (NVB) release and pelvic lymph node dissection require high team coordination. NVB release is particularly challenging and poses a higher risk of blood loss. Additionally, a large prostate increases the difficulty of prostate dissection, prolongs operative time for bladder neck and NVB dissection, and leads to a considerable overall increase in operative time. The manuscript shows that effective team coordination plays a crucial role in reducing blood loss and operative time during surgical activities. When the team coordinates well, clear and efficient verbal communication suffices, reducing the need for physical proximity during robotic-assisted surgeries.

Research Progress on the Activity Stimulation of Lithium Slag in Concrete

Lithium slag (LS), an industrial waste byproduct generated during lithium salt production, is characterized by its harmful trace elements, significant stockpiles and low pozzolanic activity. By 2003, the annual discharge of lithium slag in China surpassed 15 million tons, creating an urgent need for established large-scale disposal technologies. One of the primary strategies for the effective utilization of LS is its application as an auxiliary cementitious material in concrete. However, the low reactivity of LS and challenges associated with its large-scale application impede its effective utilization. Enhancing the pozzolanic activity of LS is pivotal for its substantial incorporation into concrete. This study begins by analyzing the physicochemical properties and volcanic ash reactivity of LS derived from various lithium extraction techniques. It subsequently explores the diverse activation techniques aimed at improving the reactivity of LS within concrete. Ultimately, this paper highlights the significance of synergistic activation strategies, particularly physicochemical co-excitation and multi-exciter composite excitation. These approaches are identified as critical pathways for enhancing the activity of LS. Through this exploration, this study aims to unveil innovative strategies that bolster the resource utilization efficiency of LS, thereby facilitating its effective application in the concrete domain.

The Effect of MiR320a on Lung Cancer.

Lung cancer has a high mortality rate among cancers in both women and men. Currently, lung cáncer diagnosis is made with clinical examination, low-dose CT scan and molecular-based methods and its treatment options include chemotherapy, surgery, radiotherapy or immunotherapy. However, the life expectancy of lung cancer is not very high, and still it is usually diagnosed very lately, which leads to poorer prognosis. MicroRNAs [miRNAs] are small noncoding RNAs that regulate many diverse activities in the cell that can affect tumorigenesis by regulating many cell functions related to cancer, such as cell cycle, metastasis, angiogenesis, me-tabolism, and apoptosis. Also, it can have a potential diagnostic, therapeutic, and prognostic value for lung cancer. MiR320a is a promising microRNA that may help us in the diagnosis, treatment and prognosis of lung cancer, but some aspects of its clinical application are still vague, especially its effect on heavy smokers, delivery mechanism, toxicity and lack of reliable critical value. In this paper, we examined its comprehensive molecular interactions that lead to its tumor suppres-sor effect, and we reviewed its clinical application until now.

Skrining fitokimia tumbuhan potensi obat kanker kolorektal Begonia medicinalis Ardi &amp; D.C. Thomas

Cancer is a condition in which cells or tissues undergo abnormal progressive growth. Colorectal cancer is cancer that occurs in the colon to rectum organs of humans. Alternative therapy for colorectal cancer treatment is the use of herbs such as Begonia medicinalis Ardi &amp; D.C. Thomas. This study aimed to screen the bioactive compounds in the Begonia medicinalis Ardi &amp; D.C. Thomas. extract and its potential as a colorectal cancer drug. This research consists of two stages, namely the extraction stage using the maceration method and the screening stage. The results showed that the extract of Begonia medicinalis Ardi &amp; D.C. Thomas. positively contains flavonoids, alkaloids, and saponins. These bioactive compounds have potential activity as preventive and curative agents for colorectal cancer through several mechanisms, including suppressing oxidative stress, inhibiting CDK activity, suppressing intestinal inflammation, and increasing floranormal diversity and probiotic barrier activity in the intestine.

TiO2/ZnWO3 with improved photocatalytic performance in the preparation of chromeno[4,3-b]chromenes

Chromeno[4,3-b]chromenes have shown potential as effective drugs against cardiovascular diseases, primarily due to their diverse biological activities, including anti-inflammatory and antioxidant properties. This study was conducted on a new heterojunction nanocomposite TiO2/ZnWO3 consisting of titanium dioxide (TiO2) and zinc tungstate (ZnWO3) with enhanced photocatalytic capability. TiO2/ZnWO3 nanophotocatalyst is characterized by FT-IR, XRD, DRS, SEM, and EDX and performed as an efficient nanophotocatalyst in the synthesis of chromeno[4,3-b]chromene derivatives. The research focused on the intricate interplay of the components, aiming to optimize the catalytic reactions under green-light irradiation. Through this investigation, insights were gained into the mechanistic pathways and the potential for improved yields in the formation of the desired chromene. TiO2 has the ability to absorb light and produce electrons and holes when exposed to the direct light; but to increase its photocatalytic activity, an additional component ZnWO3 is combined. Effect of photocatalyst amount, reaction time, temperature, and solvent as well as reusability of the nanocomposite are investigated. The research focused on the intricate interplay of the components, aiming to optimize the catalytic reactions under green-light irradiation. Through this investigation, insights were gained into the mechanistic pathways and the potential for improved yields in the formation of the desired chromene. TiO2 has the ability to absorb light and produce electrons and holes when exposed to the direct light; but to increase its photocatalytic activity, an additional component ZnWO3 is combined. Effect of photocatalyst amount, reaction time, temperature, and solvent as well as reusability of the nanocomposite are investigated.

Multi-modal sensing insoles for identity authentication across diverse walking activities

Multi-modal sensing insoles for identity authentication across diverse walking activities

Insights into the culturable fungal endophytes of Dioscorea bulbifera L. in terms of their diversity, antidiabetic and antioxidant activity

The research on endophytes is focused on understanding the complex microbiome compositions, their interactions with host plants and their bioactive potential. Our study provided an overview of the diversity, distribution and bioactivities of culturable endophytic fungi associated with fungal endophytes of Dioscorea bulbifera L. The phylogenetic analysis depicted the evolutionary relationship among taxa of endophytic fungal isolates. The isolated fungal endophytes belonged to twenty-five genera and thirty-eight species. Further, diversity indices demonstrated significant diversity of fungal endophytes in the different tissues: stem, leaf, tuber and bulbil. A higher consistency of endophytic fungal isolates in the bulbils was found using Shannon index. Furthermore, Simpson's index revealed that the leaf tissue harboured highly diverse fungal endophytes. Likewise, Margalef's index depicted high taxonomic richness in bulbils. The isolates such as Acrocalymma medicaginis, Curvularia lycoperscii, Talaromyces macrospora, Fusarium laceratum, Paecilomyces formosus and Microascus cirrosus isolated in this study have been reported as endophytes for the first time from any plant. In-vitro antioxidant and antidiabetic activities of the ethyl acetate extracts revealed that Nigrospora oryzae (Z2) effectively inhibited α-glucosidase activity with IC50 value of 0.6 µg/ml whereas IC50 value of the acarbose, the positive control was reported to be 0.040 µg/ml. The results of antioxidant activity demonstrated that H15A (Acrocalymma medicaginis) and BD5 (Phomopsis longicolla) could be used as potential sources of antioxidant agents. Moreover, H15A (Acrocalymma medicaginis) was reported to produce 687.1 ± 0.17 µg GAE/mg of TPC and 78.55 ± 0.29 µg QE/mg of TFC quantitatively. These findings suggest that the potential endophytes could be explored using systematic bio-guided investigations to further discover novel natural products. Our study provides an important resource for a deeper understanding of endophyte-plant interactions at molecular and genetic levels.