Role of Plant Immune Signals and Signaling Systems in Plant Pathogenesis

Vidhyasekaran, P.

doi:10.1007/978-3-319-26118-8_2

Cited by 1 publication

(2 citation statements)

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“…Accumulation of SA activates expression of pathogenesis-related (PR) genes, making the host plant resistant to bacterial microbial pathogens (Miao et al, 2019 ). Plants over-expressing SA mostly exhibit the phenotypes that are indicative of auxin-deficient mutants, suggesting that SA interferes with auxin responses (Vidhyasekaran, 2016 ). Auxins cross-talk with other phytohormones is an important phenomenon during plant growth and development and also in shaping plant interactions with microbes (Meena et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

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Transformation of Endophytic Bipolaris spp. Into Biotrophic Pathogen Under Auxin Cross-Talk With Brassinosteroids and Abscisic Acid

Yousaf

Hussain

Iqbal

et al. 2021

Front. Bioeng. Biotechnol.

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Auxin is the reciprocal signaling molecule, which interferes with other phyto-hormonal and physiological processes during plant–microbes interaction. In this regard, Bipolaris spp., a growth-promoting endophytic fungus was used to inoculate pre-stressed Zea mays seedlings with yucasin (IAA inhibitor). The IAA-deficient host was heavily colonized by the endophyte that subsequently promoted the host growth and elevated the IAA levels with a peak value at 72 h. However, the seedling growth was inhibited later (i.e., at 120 h) due to the high levels of IAA that interfered with the activity of phytoalexins and brassinosteroids. Such interference also modulated the endophytic fungus from symbiotic to biotrophic pathogen that left the host plants defenseless.

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Section: Introductionmentioning

confidence: 99%

“…Similar to auxins, brassinosteroids (BRs) and abscisic acid also produce various physiological responses in plants, such as cell elongation and division, seed development and dormancy (Vidhyasekaran, 2016 ). IAA can establish a cross-talk with BR by interacting with BZR1 and PIF4 genes, inducing a hypocotyl elongation.…”

Section: Introductionmentioning

confidence: 99%