Role of agrochemical-based nanomaterials in plants: biotic and abiotic stress with germination improvement of seeds

Stilbene synthase genes make a contribution to improving the tolerances of biotic and abiotic stress in plants. However, the mechanisms mediated by these STS genes remain unclear. To provide insight into the role of STS genes defense against biotic and abiotic stress, we overexpressed VqSTS36 in Arabidopsis thaliana and tomato (Micro-Tom) via Agrobacterium-mediated transformation. VqSTS36-transformed Arabidopsis lines displayed an increased resistance to powdery mildew, but both VqSTS36-transformed Arabidopsis and tomato lines showed the increased susceptibility to Botrytis cinerea. Besides, transgenic Arabidopsis lines were found to confer tolerance to salt and drought stress in seed and seedlings. When transgenic plants were treated with a different stress, qPCR assays of defense-related genes in transgenic Arabidopsis and tomato suggested that VqSTS36 played a specific role in different phytohormone-related pathways, including salicylic acid, jasmonic acid, and abscisic acid signaling pathways. All of these results provided a better understanding of the mechanism behind the role of VqSTS36 in biotic and abiotic stress.

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Genetic adaptability of inheritance of resistance to biotic and abiotic stress level on crop: Role of epistasis

AFRICAN JOURNAL OF BIOTECHNOLOGY ◽

10.5897/ajbx11.067 ◽

2011 ◽

Vol 10 (86) ◽

Author(s):

Bnejdi Fethi

Keyword(s):

Abiotic Stress ◽

Stress Level ◽

Inheritance Of Resistance ◽

Biotic And Abiotic Stress

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Role of Rhizosphere and Endophytic Microbes in Alleviation of Biotic and Abiotic Stress in Plants

10.1007/978-981-16-2922-8_9 ◽

2021 ◽

pp. 195-235

Author(s):

N. D. Sooriyaarachchi ◽

M. C. M. Zakeel ◽

M. I. S. Safeena ◽

K. M. R. D. Abhayapala

Keyword(s):

Abiotic Stress ◽

Biotic And Abiotic Stress

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Identification of SWI2/SNF2-Related 1 Chromatin Remodeling Complex (SWR1-C) Subunits in Pineapple and the Role of Pineapple SWR1 COMPLEX 6 (AcSWC6) in Biotic and Abiotic Stress Response

Biomolecules ◽

10.3390/biom9080364 ◽

2019 ◽

Vol 9 (8) ◽

pp. 364 ◽

Cited By ~ 2

Author(s):

Jakada ◽

Aslam ◽

Fakher ◽

Greaves ◽

Li ◽

...

Keyword(s):

Abiotic Stress ◽

Chromatin Remodeling ◽

Sequence Similarity ◽

Rna Seq ◽

Abiotic Stress Response ◽

Biotic And Abiotic Stress ◽

Enhanced Resistance ◽

Chromatin Remodeling Complex ◽

Genome Wide

Chromatin remodeling complex orchestrates numerous aspects of growth and development in eukaryotes. SWI2/SNF2-Related 1 chromatin remodeling complex (SWR1-C) is a member of the SWI/SNF ATPase-containing chromatin remodeling complex responsible for the exchange of H2A for H2A.Z. In plants, SWR1-C plays a crucial role by transcriptionally regulating numerous biological and developmental processes. However, SWR1-C activity remains obscure in pineapple. Here, we aim to identify the SWR1-C subunits in pineapple. By genome-wide identification, we found a total of 11 SWR1-C subunits in the pineapple. The identified SWR1-C subunits were named and classified based on the sequence similarity and phylogenetic analysis. RNA-Seq analysis showed that pineapple SWR1-C subunits are expressed differentially in different organs and at different stages. Additionally, the qRT-PCR of pineapple SWR1-C subunits during abiotic stress exposure showed significant changes in their expression. We further investigated the functions of pineapple SWR1 COMPLEX 6 (AcSWC6) by ectopically expressing it in Arabidopsis. Interestingly, transgenic plants ectopically expressing AcSWC6 showed susceptibility to fungal infection and enhanced resistance to salt and osmotic stress, revealing its involvement in biotic and abiotic stress. Moreover, the complementation of mutant Arabidopsis swc6 by pineapple SWC6 suggested the conserved function of SWC6 in plants.

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