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- W2788972238 startingPage "95" @default.
- W2788972238 abstract "Abstract Microbial symbionts increase plant growth and eco-physiological performance under abiotic stress. In this study, we evaluated how the colonization of two fungal endophytes isolated from wild Nicotiana species from areas of drought-prone northern Australia, and a plant virus, yellowtail flower mild mottle virus (genus Tobamovirus), improved water stress tolerance in N. benthamiana plants. Inoculation with both of the two fungal strains used and the virus significantly increased plants tolerance to water stress as manifested by their significant delay in wilting of shoot tips. The water stress tolerance of fungus-inoculated plants was correlated with increases in plant biomass, relative water content, soluble sugar, soluble protein, proline content, increased activities of the antioxidant enzymes catalase, peroxidase and polyphenol oxidase, decreased production of reactive oxygen species, and decreased electrical conductivity. In addition, there was significant upregulation of several genes previously identified as drought induced. The influence of the virus was similar to the fungi in terms of increasing the plant osmolytes, antioxidant enzyme activity and gene expression. Although separate infection of fungi and virus increased plant water stress tolerance responses, their co-infection in plants did not have an additive effect on water stress responses. These findings show that presence of both fungi and viruses can initiate plant responses to water stress in a similar way." @default.
- W2788972238 created "2018-03-06" @default.
- W2788972238 creator A5017521861 @default.
- W2788972238 creator A5035230811 @default.
- W2788972238 creator A5042030092 @default.
- W2788972238 creator A5063547974 @default.
- W2788972238 creator A5091388639 @default.
- W2788972238 date "2018-05-01" @default.
- W2788972238 modified "2023-09-26" @default.
- W2788972238 title "Fungal endophytes and a virus confer drought tolerance to Nicotiana benthamiana plants through modulating osmolytes, antioxidant enzymes and expression of host drought responsive genes" @default.
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