Exigua Desm Research Articles

Causes of dangerous fungal diseases of potatoes in the western region of Ukraine due to climate change

Goal. To determine the species composition of pathogens of potato fungal diseases in the western region of the forest-steppe zone under climatic changes.
 Methods. Research was conducted during 2021—2022 on the basis of the Ukrainian Plant Quarantine Research Station of the Institute of Plant Protection using laboratory (identification of pathogens) and field (examination of potato plantations and analysis of tuber material) methods.
 Results. According to the research results, the most common fungal diseases on vegetative plants during the studied period were: anthracnose (Colletotrichum coccodes (Wallr.) S. Hughes), Alternaria solani (Ellis & G. Martin) L.R. Jones & Grout, Alternaria alternata (Fr.) Keissl.), fusarium wilt (Fusarium oxysporum Sсhl.) and late blight (Phytophthora infestans (Mont.) de Bary). As a result of phytopathological analysis of tubers, it was established that the greatest danger during potato storage is caused by pathogens of the genera Fusarium, Phoma, Colletotrichum, Phytophthora, causing fusarium, fomosis, anthracnose, phytophthora and mixed types of rot. the causative agents of fusarium were identified — Fusarium oxysporum Sсhl., F. sambucinum Fuck., F. solani Vart.; phomoza — Rhoma exigua Desm. var. exigua rhizoctonia — Rhizoctonia solani (J. G. Kühn) [teleomorph Thanatephorus cucumeris (A. B. Frank) Donk]; Alternaria solani (Ellis & G. Martin) L.R. Jones & Grout; Alternaria alternata (Fr.) Keissl.; anthracnose — Colletotrichum coccodes (Wallr.) S. Hughes, late blight — Phytophthora infestans (Mont.) de Bary); the share of fusarium was 42.1%, the causative agent of anthracnose — 27.5%.
 Conclusions. Fungal diseases (anthracnose, fusarium wilt) of potatoes, which at the end of the twentieth century were considered to be of limited distribution, have become widespread, which requires their further study in order to optimize crop protection.

Synthetic Salicylic acid inducible recombinant promoter for translational research

In the present study, we have developed an inter-molecularly shuffled caulimoviral promoter for protein over-expression by placing the Upstream Activation Sequence (UAS) of Figwort Mosaic Virus (FMV; –249 to –54) at the 5′-end of the Cassava Vein Mosaic Virus (CsVMV) promoter fragment 8 (CsVMV8; -215 to +166) to design a hybrid promoter; FUASCsV8CP. The FUASCsV8CP promoter exhibited approximately 2.1 and 2.0 times higher GUS-activities than that obtained from the CaMV35S promoter, in tobacco (Xanthi Brad) protoplasts and in Agroinfiltration assays respectively. Hereto, when FUASCsV8CP was assayed using transgenic tobacco plants (T2- generation), it showed 2.0 times stronger activity than CaMV35S promoter and almost equivalent activity to that of CaMV35S2 promoter. The promoter displayed Salicylic acid (SA) inducibility and hence can also be used for ensuring effective gene expression in plants under constitutive as well as specific inducible conditions. Furthermore, FUASCsV8CP was used to drive the expression of victoviral Vin gene (encoding Victoriocin) transiently in tobacco. The recombinant Victoriocin could be successfully detected by western blotting three days post infiltration. Also, the in vitro Agar-based killing zone assays employing plant-derived Victoriocin-His (obtained from transient expression of Vin) revealed enhanced antifungal activity of Victoriocin against hemi-biotrophic pathogen Phoma exigua Desm. var. exigua.

First Report of Black Spot Caused by Boeremia exigua var. exigua on Field Pea in Australia.

Black spot is a major disease of field pea (Pisum sativum L.) production across southern Australia. Known causal agents in Australia include one or more of Mycosphaerella pinodes (Berk. & Bloxam) Vestergr., Phoma medicaginis var. pinodella (L.K. Jones), Ascochyta pisi Lib., or P. koolunga (Davidson, Hartley, Priest, Krysinska-Kaczmarek, Herdina, McKay & Scott) (2), but other pathogens may also be associated with black spot symptoms. Black spot generally occurs on most plants and in most pea fields in Western Australia (W.A.), and during earlier winter/spring surveys of blackspot pathogens, some isolates were tentatively allocated to P. medicaginis var. pinodella despite different cultural characteristics on potato dextrose agar (PDA). Recently, single-spore isolations of a single culture each from an infested pea crop at Medina, Moora, and Mt. Barker in W.A. were made onto PDA. A PCR-based assay with TW81 and AB28 primers was used to amplify from the ITS-5.8S rDNA region. Purified DNA products were sequenced for the three isolates and then BLASTn was used to compare sequences with those in GenBank. Our sequences (GenBank Accession Nos. JN37743, JN377439, and JN377438) had 100% nucleotide identity with P. exigua Desm. var. exigua accessions (GI13385450, GI169894028, and GI189163921), an earlier synonym of what is now known as Boeremia exigua var. exigua ([Desm.] Aveskamp, Gruyter & Verkley) (1). Davidson et al. (2) used the same primers to identify P. koolunga, but none of our isolates were P. koolunga. A suspension of 107 conidia ml-1 of each representative isolate was inoculated onto foliage of 15-day-old field pea cv. Dundale plants and maintained at >90% relative humidity for 72 h postinoculation. Control plants inoculated with just water remained symptomless. Brown lesions were evident by 8 to 10 days postinoculation and mostly 1 to 3 mm in diameter. B. exigua var. exigua was readily reisolated from infected leaves. Isolates have been lodged in the W.A. Culture Collection Herbarium maintained at the Department of Agriculture and Food W.A. (Accession Nos. WAC13500, WAC13502, and WAC13501 from Medina, Moora, and Mt. Barker, respectively). Outside Australia, its synonym P. exigua var. exigua is a known pathogen of field pea (4), other legumes including common bean (Phaseolus vulgaris L.) (4) and soybean (Glycine max [L.] Merr.) (3), and is known to produce phytotoxic cytochalasins. In eastern Australia, P. exigua var. exigua has been reported on common bean (1930s and 1950s), phasey bean (Macroptilium lathyroides [L.] Urb.) and siratro (M. atropurpureum (DC.) Urb.) (1950s and 1960s), mung bean (Vigna radiata [L.] Wilczek.) (1960s), ramie (Boehmeria nivea [L.] Gaudich.) (1939), potato (Solanum tuberosum L.) (1980s), and pyrethrum (Tanacetum cinerariifolium [Trevir.] Schultz Bip.) (2004 and 2007) (Australian Plant Pest Database). To our knowledge, this the first report of B. exigua var. exigua on field pea in Australia, and because of its potential to be a significant pathogen on field pea, warrants further evaluation.

The occurrence and pathogenicity of Phoma exigua Desm. var. exigua for selected species of herbs

<i>P. exigua</i> var. <i>exigua</i> was isolated from underground and aboveground organs of different herb plant species in the years 1998-2006. Pathogenicity tests of three randomly chosen isolates of the fungus T 299, T 261 and T 277 for thyme and of three isolates M 1657, M 1193 and M 1635 for lemon balm were carried out. The effect of water suspension of fungus spores on the germination ability of schizocarps and of infected soil on sprouting and seedling health was studied. The study of microscopic structures of the fungus developing on plants, isolation of the fungus on artificial media and macro- and microscopic analysis on standard media are essential for the correct identification of <i>P. exigua</i> var. <i>exigua</i>. The polyphagous nature of the fungus is confirmed by the obtained results. The tested isolates were found to be occasional pathogens of thyme and lemon balm in the studied conditions. The harmfulness of the tested isolates pointed to inhibition of schizocarp germination, sprouting of plants and the ability to cause necrosis of germs, roots and epicotyl.

Fate of vinclozolin, thiabendazole and dimethomorph during storage, handling and forcing of chicory.

As part of ongoing research for a sustainable production of Belgian endives, the fate of three fungicides during storage, handling and forcing of witloof chicory roots was investigated. Storage roots are protected against Sclerotinia sp. Fuckel and Phoma exigua var. exigua Desm. by means of vinclozolin and thiabendazole respectively. During hydroponic forcing, the most imminent pathogen is Phytophthora cryptogea Pethybr. & Laff., which is controlled by the use of dimethomorph. Vinclozolin and thiabendazole concentrations on roots remained constant during storage at -1 degrees C. Dermal exposure of the workers in hydroponics was exceeded. Vinclozolin and thiabendazole residues were not detected 2 weeks after hydroponic forcing; dimethomorph was still detected at harvest. At harvest, the vinclozolin concentration in the chicory heads was below the maximum residue limit, but the chicory roots contained residues much above the thiabendazole and dimethomorph maximum residue level. Vinclozolin and thiabendazole residues applied before storage are still present on the roots at the start of the forcing cycle. During the set-up of chicory roots, preventive measures are recommended, as effects of repeated human exposure to low doses of applied fungicides cannot be excluded. Dimethomorph applied at the start of the hydroponic forcing is the only pesticide detected in the drainage water at harvest. The chicory heads were safe for human consumption. However, more attention should be paid to the residues of fungicides in the roots used for cattle feeding.

Phoma exigua Desm. var. exigua によるゴボウ根黒斑病（新称）

A new disease of edible burdock (Arctium lappa L.) was observed in Okayama Prefecture in 2002. The fungus consistently isolated from symptomatic roots was identified as Phoma exigua Desm. var. exigua on the basis of morphological characteristics of the fungus, color reaction with 1 N-NaOH on malt agar and pathogenicity on roots of edible burdock. Phoma black spot (Ne kokuhan-byo in Japanese) of edible burdock (Arctium lappa L.) is proposed for the new disease name.

First Report of Phoma exigua on Centaurea solstitialis (Asteraceae) in Russia.

Phoma exigua Desm. (teleomorph Didymella exigua (Niessl) Sacc.) was isolated from wilted Centaurea solstitialis L. (yellow starthistle) plants displaying necrosis of the crown that were found near Krasnodar, Russia. The fungus was identified using morphological and cultural characteristics (1,2) and confirmed by sequencing the complete internal transcribed spacer region of the nuclear rDNA (GenBank Accession No. AY089978). P. exigua is a relatively common soilborne fungus that is weakly pathogenic on a diverse range of primarily dicotyledonous plants throughout the world (1). To our knowledge, it has never been reported previously on members of the genus Centaurea. Yellow starthistle is native to eastern Europe and the Mediterranean Region, and is now a noxious weed in North America for which P. exigua is being investigated as a potential biological control agent. Repeated pathogenicity studies (N = 30) resulted in a mortality of 80 and 93% within 7 days when 1-week-old seedlings were transplanted in soil infested with P. exigua-colonized wheat seed at rates of 6.7 and 10% (vol/vol), respectively. Symptoms of the seedlings included necrosis of the stem and wilting of the seedling. Pycnidia were observed in the roots of dead seedlings. The isolate of P. exigua has been deposited as a dried specimen at the U.S. National Fungus Collections, Beltsville, MD (BPI 841766) and as a living culture at the CBS collection in Utrecht, Netherlands (CBS 110211).

Evaluation of the pathogenicity of <i>Phoma exigua</i> var <i>exigua</i> on Californian thistle

Pathogenicity of isolates of Phoma exigua var exigua Desm on detached wounded Californian thistle (Cirsium arvense (L) Scop) leaves was determined by measuring lesion development after inoculation with conidial solutions (1 x 105 spores/ml) Results showed significant lesion development by all six test isolates compared to control treatments but inconsistent lesion development was observed between isolates and between assays The six isolates also gave greater (P

Suppression of hyphal growth of soil‐borne fungi by dune soils from vigorous and declining stands of Ammophila arenaria

A study was carried out to determine whether expansion of marram‐grass stands (Ammophila arenaria (L.) Link) on acidic inner Dutch coastal dunes was caused by suppressiveness of soils from these stands against three potential pathogenic fungi of marram grass, namely Fusarium culmorum (W. G. Sm.) Sacc., Phoma exigua Desm. and a Ulocladium sp. The suppressiveness of the acidic inner dune soils was compared with that of lime‐rich dune soils from vigorous and declining marram‐grass stands. Suppressiveness of the dune soils against the saprotrophic fungi Chaetomium globosum Kunze: Fr, Mucor hiemalis Wehmer and Trichoderma harzianum Rifai was also determined. All fungi had been isolated from marram‐grass roots. Suppressiveness was determined by comparing the formation of hyphae from potato–dextrose agar discs into (layer method) or on top of (surface method) dune soils with that of controls consisting of sterile, acid‐washed beach sand. The growth of the three root‐infecting fungi was strongly inhibited in all soils regardless of the method used. Hence, there were no indications that the potential pathogenic fungi were selectively suppressed by the acidic dune soils and, consequently, the results did not give any indication for the involvement of a fungal component in the decline of marram grass. Growth of the saprotrophs C. globosum and M. hiemalis was much less inhibited than that of the root‐infecting fungi. Growth of T. harzianum was strongly inhibited in alkaline soils but not in the acid ones. The suppression of fungal growth could be partly or completely eliminated by a microwave treatment, indicating that biological components of the soil were essential to suppressiveness. The suppression of the fungi by colonies of dune soil micro‐organisms on water‐agar differed considerably from soil alone. Yet, all methods indicated the occurrence of general suppressiveness against fungi by dune soils, irrespective of the origin of the soil samples. This suppressiveness was probably not due to direct competition with other soil micro‐organisms for nutrients but to inhibiting compounds produced by the soil micro‐organisms.

Secondary effects of SO 2 pollution on leachate chemistry and decay of Scots pine and mixed angiospermous leaf litters

The secondary effects of SO 2 fumigation on CO 2 evolution from leaf litter of Scots pine ( Pinus sylverstris L.) and mixed broad-leaved species [ Quercus petraea Mattuschka (Liebl.), Fraxinus excelsior L., Betula pubescens Ehrh., Betula pendula Roth., Acer pseudoplatanus L. and Corylus avellana L.] were investigated. Respiration of Phoma exigua Desm inoculated onto both types of previously fumigated (48 nl l −1), sterile litter was higher than controls (< 10 nl l −1). Much higher rates of CO 2 evolution were measured from control litters than from fumigated litters after 2 weeks; the differences decreased but continued until the end of the 12-wk incubation period. Sulphate concentrations in the leachate solution from fumigated litters remained significantly higher until the end of the experiment. In addition, the pH of the leachate solution was lowered by SO 2 fumigation. At the start of the experiment, the NH 4 + concentration from pre-fumigated and control litters was similar, but release from the control litter was slightly greater than from pre-fumigated litter, according with measurements of CO 2 evolution from the litters. The experiments indicated that environmentally-realistic concentrations of SO 2 over a long period could affect leachate chemistry and this might affect the decomposition rate of leaf litters. The Scots pine litter was more affected than mixed angiospermous litter.

Sulphur dioxide effects on fungi growing on leaf litter and agar media

summaryRespiration of four decomposer fungi (Mycena galopus (Pers.) Kutnmer, Aureobasidium pullulans (de Bary) Arnaud, Phoma exigua Desm. and Cladosporium cladosporioides (Fres.) de Vries) growing on four species of leaf litter (Pinus sylvestris L., Picea sitchensis (Bongard) Carriére, Fraxinus excelsior L. and Corylus avellana L.) was inhibited by dry‐deposited SO2 in a laboratory experiment. Mycelial extension of the four fungi growing on four different agar media was inhibited by SO3 fumigation (40 nl l−1) in the laboratory, and media containing carbohydrates decreased the inhibitory effect of SO2 fumigation. Fumigation caused a statistically significant reduction in the mycelial extension of all species tested on tap‐water agar. These experiments demonstrate that decomposition of leaf litter is inhibited by environmentally realistic concentrations of SO2 and that the effect is exerted via inhibition of saprotrophic fungi.

Effects of dry-deposited sulphur dioxide on fungal decomposition of angiosperm tree leaf litter I. Changes in communities of fungal saprotrophs.

Comparisons of the saprotrophic fungi isolated from ash (Fraxinus excelsior L.), birch (Betula spp.), hazel (Corylus avellana L.), pedunculate oak (Quercus robur L.), sessile oak [Q. petraea (Mattuschka) Liebl.] and sycamore (Acer pseudoplatanus L.) leaf litters from three woodlands exposed to low, medium and high levels (c. 0.0→ 0.060μl l-1 ) of sulphur dioxide (SO2 ) showed that the composition of the fungal communities differed between sites. Fumigation of angiosperm tree leaf litters from the least and the most polluted site with environmentally-realistic concentrations (0.010-0.030 μl1 ) of SO2 for 16-68 wk in an open-air field-fumigation experiment resulted in marked changes in the composition of the fungal communities in the leaf litters, comparable with differences found between the woodland sites. Cladosporium spp., Epicoccutn nigrum Link, Fitsarium spp. and Phoma exigua Desm. were less commonly isolated from leaf litters exposed to SO2 , whereas Coniothyrium quercinum Sacc. var. glandicola Grove, Cylindrocarpon orthosporum (Sacc.) Wollenw. and Penicillium spp. were more frequently isolated from fumigated litters. However, few differences could be detected in the response to SO2 of the mycofloras of leaf litters originating from different woodland sites. In general, SO2 did not affect the total extent of fungal occupancy of the microsites in the litter, as fungal species which decreased in abundance on exposure to the gas appeared to be replaced in the litter by other species more tolerant to the gas. SO2 therefore appeared to be selectively toxic to saprotrophic fungi isolated from these litters.

Effects of dry-deposited sulphur dioxide on fungal decomposition of angiosperm tree leaf litter III. Decomposition rates and fungal respiration.

Ash (Fraxinus excelsior L.), birch (Betula spp.), hazel (Corylus avellana L.), sessile oak [Quercus petraea (Mattuschka) Liebl.] and sycamore (Acer pseudoplatanus L.) leaf litters from a virtually non-polluted and a heavily sulphur dioxide (SO2 )-polluted woodland were fumigated with environmentally-realistic concentrations (0.010-0.030μl l-1 ) of SO2 for 16-68 wk in an open-air field-fumigation experiment. Fumigation inhibited the respiration (CO2 evolution) and decomposition rates of the leaf litters. However, there were few differences in the responses between leaf litters from the two woodlands. In addition, pure cultures of four saprotrophic fungi were grown individually on irradiated hazel litter and exposed to c. 0.030μl l-1 of gaseous SO2 , for 28 d in the laboratory. The gas inhibited the respiration of Phoma exigua Desm. and Phoma macrostoma Mont, but not the respiration of Cladosporium cladosporioides (Fres.) de Vries or Coniothyrium quercinum Sacc. var. glandicola Grove. These results in part substantiated findings of previous experiments examining the effects of SO2 on the structures of saprotrophic fungal communities. The effects of SO2 on fungal decomposition of angiosperm tree leaf litter as possible causes of forest decline are discussed.

Red tamarillos (Cyphomandra betacea): Comparison of two postharvest dipping strategies for the control of fungal storage disorders

Abstract The fungicides imazalil and prochloraz suppressed the in vitro growth of four fungal storage pathogens of tamarillos (Colletotrichum gloeosporioides (Penz.) Arx, C. acutatum Simmonds, Phomopsis sp., and Phoma exigua Desm.). Imazalil was as effective as prochloraz against P. exigua but prochloraz was more effective against C. gloeosporioides, C. acutatum, and Phomopsis sp. The proportion of fruit affected by four storage disorders (body lesions, stem-end lesions, calyx mycelium, and calyx necrosis) was reduced after dipping with prochloraz (250–1000 mg/litre) compared with fruit dipped in cold water (CW). A combined imazalil and prochloraz dip (CF) resulted in the greatest reduction in these disorders. Fruit from one orchard were dipped and stored for4,6,and8 weeks at3.5± l° Cfollowedby 1 week at 20 ± 2° C. The number of sound fruit after storage was increased by 36% and 35% respectively for the CF strategy and the hot water dip (HW) when compared with the cold water dip (CW). In fruit that were c...

Tamarillo (Cyphomandra betacea): Effect of field-applied fungicides and post-harvest fungicide dips on storage rots of fruit

Abstract A regular field spray programme of captafol reduced the incidence of fungal rots and enhanced storage longevity of tamarillo (Cyphomandra betacea (Cav.) Sendt.) fruit. Captafol and benomyl field sprays in combination with a prochloraz + imazalil post-harvest dip treatment enhanced fruit appearance after storage by preventing breakdown of the calyx. The prochloraz + imazalil post-harvest dip was the most effective single treatment, giving complete control of tamarillo rots after 6 weeks cool storage followed by 1 week at ambient temperatures. Bitter rot (Glomerella cingulata (Stonem.)) was responsible for most rejection of fruit. Diaporthe phaseolorum (Cke. & Ell.) and Phoma exigua Desm. became increasingly important in causing the rejection of dipped fruit as the storage interval was increased.

Fungus diseases of raspberry (Rubus idaeus L.) in Finland

During 1978—1981 a total of nearly 200 raspberry cane samples were investigated originating mainly from southern and eastern Finland. The samples consisted of young and already fruited canes injuried to different degrees. Phoma sp., the conidial stage of Didymella applanata (Niessl) Sacc., causer of raspberry spur blight, was most common of the isolated fungi; the perfect stage did not develope until afer preservation in cold. The peak of pycnospore release on raspberry canes was in July 1981. Other weak wound pathogens were isolated: Fusarium avenaceum (Cda. ex Fr.) Sacc., which occurred in 22 % of the transfers, F. culmorum (W. G. Sm.) Sacc., Botrytis cinerea Pers. ex Fr. and the secondly most common Phoma species, P. exigua Desm. v. exigua Maas. The fungi mentioned above were mainly obtained from different depths of the raspberry stem tissues, the least on an average from the pith. Alternaria alternate (Fr.) Keissl. was the most common ’surface fungus’, Phialophora spp., wood rotting saprophytes, common also in the pith. Leptosphaeria coniothyrium (Fckl.) Sacc., the most strong of the pathogens, was rare in the samples. The occurrence of Cylindrocarpon destructans (Zinssm.) Scholten in root samples changed 8-70 %. The cv. Muskoka is more susceptible to spur blight than cv. Ottawa. On the other hand, the larvae of raspberry cane midge (Resseliella theobaldi (Barnes)) produced plenty of injuries in Ottawa-samples originating from Mikkeli in 1980 and thus increased also the fungal damage.

Phoma exigua Desm. var. foveata (Foister) Boerema

EPPO BulletinVolume 12, Issue 1 p. 97-103 Phoma exigua Desm. var. foveata (Foister) Boerema Funqi Imperfecti: Sphaeropsidales First published: January 1982 https://doi.org/10.1111/j.1365-2338.1982.tb01962.xCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume12, Issue1January 1982Pages 97-103 RelatedInformation

Fungus diseases of cultivated arctic bramble (Rubus arcticus L.) in Finland

During 1975 and 1977—1979 studies were carried out on the fungus diseases of experimentally cultivated arctic bramble (Rubus arcticus L.). The most common pathogenic or weakly pathogenic fungi isolated from the diseased clones were Cylindrocarpon destructans (Zins.) Scholten and Fusarium avenaceum (Cda ex Fr.) Sacc. Some other Fusarium species and Botrytis cinerea Pers. ex Fr. were rather uncommon. Didymella applanata (Niessl) Sacc. and plenty of pycnidia of Phoma spp. were established on nearly withered clones; among the isolates were P. exigua Desm. var. exigua Maas, Phoma spp. and Coniotbyrium fuckelii Sacc. (con. st. of Leptosphaeria coniotbyrium (Fuck.) Sacc.). Isolates of little significance were identified in the whole from 26 fungal genera.

Factors affecting survival of Phoma exigua var. foveata in soil

The effects of temperature, soil moisture, soil type and fungal isolate on the longevity of Phoma exigua Desm. var. foveata (Foister) Boerema (the cause of potato gangrene) in soil were investigated by inoculating soils with pycnidiospores and incubating under constant conditions of temperature and moisture. There was an immediate, steady decline in fungal populations in all experiments, except in autoclaved soil where they initially remained constant for 3–4 months. Survival was prolonged by lower temperatures, populations in loam becoming undetectable within about 8 months at 15 °C, 2 years at 10° and 3 years at 5°. In general survival was better (i.e. populations were larger at any sample time) the drier the soil, but in very dry conditions ( The implication of these results is discussed in relation to survival in the field. The soil is unlikely to be an important reservoir of inoculum for potato crops, except possibly in the production of high-grade seed stocks, where even small populations could result in introduction of disease.

Testing of Seed Potatoes for Phoma exigua Desm. var. foveata (Foister) Boerema1

EPPO BulletinVolume 6, Issue 4 p. 247-248 Testing of Seed Potatoes for Phoma exigua Desm. var. foveata (Foister) Boerema1 I.G. Vanluchene, I.G. Vanluchene Ministerie van Landbouw, Ghent (Belgium)Search for more papers by this author I.G. Vanluchene, I.G. Vanluchene Ministerie van Landbouw, Ghent (Belgium)Search for more papers by this author First published: December 1976 https://doi.org/10.1111/j.1365-2338.1976.tb01555.xCitations: 2 1 Paper presented at the EPPO Conference on Bacterial and Fungal Diseases of Potatoes, Brussels, 14–16 October, 1975. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume6, Issue4December 1976Pages 247-248 RelatedInformation