Abstract
BackgroundCommon bean (Phaseolus vulgaris L.) is a source of antioxidant-containing vegetable protein that is beneficial to human health. The intense cultivation of common bean may result in environmental degradation. Thus, environmentally friendly cultivation methods that use an endophyte to improve productivity are needed. An entomopathogenic fungus, Beauveria bassiana, can serve as an endophyte that stimulates the growth of Gossypium. Therefore, we isolated and identified B. bassiana and also examined its function as a beneficial endophyte that promotes the growth of common bean.ResultsAn entomopathogenic fungus, B. bassiana, was collected and identified based on macroscopic and microscopic characteristics that were observed during morphological examination. B. bassiana was propagated and inoculated into common bean via seed soaking, soil wetting, and leaf spraying. The soil-wetting and leaf-spraying methods used to inoculate B. bassiana effectively enhanced the growth of common bean, which was observed at day 10 post-inoculation. However, no significant growth enhancement of common bean was observed when the seed-soaking inoculation method was used.ConclusionsThese results suggest a positive correlation between the B. bassiana inoculation method and growth enhancement of common bean. This study showed the endophytic potency of the fungus that may be used in the development of environmentally friendly cultivation methods of common bean.
Highlights
Common bean (Phaseolus vulgaris L.) is a source of antioxidant-containing vegetable protein and is widely consumed in various countries
Beninger and Hosfield [5] showed that pure flavonoid compounds that are present in the seed coats of common bean, such as anthocyanins, quercetin glycosides, and proanthocyanidins, have significant antioxidant activity that is related to butylated hydroxytoluene (BHT), a commercial antioxidant used in foods
Identification of B. bassiana Beauveria bassiana grows on the edges of roots, stems, and leaves on Potato dextrose agar (PDA) medium and is white and round in appearance with a smooth edge texture (Fig. 1)
Summary
Common bean (Phaseolus vulgaris L.) is a source of antioxidant-containing vegetable protein and is widely consumed in various countries. Consumption of common bean may increase levels of antioxidants, which is beneficial to Biological agents can be a positive trigger of plant growth. Entomopathogenic B. bassiana is thought to have a broad host range and has the potential of being used as a biological control agent by serving as an endophyte capable of protecting plants. Common bean (Phaseolus vulgaris L.) is a source of antioxidant-containing vegetable protein that is beneficial to human health. Beauveria bassiana, can serve as an endophyte that stimulates the growth of Gossypium. We isolated and identified B. bassiana and examined its function as a beneficial endophyte that promotes the growth of common bean
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