Plant Cell Differentiation

Hülskamp, Martin; Ilgenfritz, Hilmar

doi:10.1038/npg.els.0001690

Cited by 1 publication

(1 citation statement)

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“…They utilize distinct strategies to defend themselves against pathogens and predators in the natural environment. Epidermis being the most intimate layer interfacing with the environment is highly prone to various stresses thus directly influences the fitness of the plant 1 . It utilizes both structural (eg.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome analysis provides insight into prickle development and its link to defense and secondary metabolism in Solanum viarum Dunal

Pandey

Goel

Bhardwaj

et al. 2018

Sci Rep

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Prickles are epidermal outgrowth found on the aerial surface of several terrestrial plants. Microscopic studies on prickles of S. viarum Dunal indicated a crucial role of glandular trichomes (GTs) in their development. A spontaneously obtained prickleless mutant showed normal epidermal GTs, but its downstream developmental process to prickle was perturbed. Thus, prickleless mutant offers an ideal opportunity to unveil molecular regulators working downstream to GTs in the prickle formation. Differential transcriptome analysis of epidermis of prickly and prickleless mutant revealed that expression of several defense regulators like ethylene, salicylic acid, PR-proteins, etc. were significantly down-regulated in prickleless mutant, provide an important link between defense and prickle development. It was also noteworthy that the expression of few essential development related TFs like MADS-box, R2R3-MYB, REM, DRL1, were also down-regulated in the stem, petioles, and leaves of prickleless mutant indicating their potential role in prickle development. Interestingly, the gene expression of terpenoid, steroid, flavonoid, glucosinolate, and lignin biosynthesis pathways were up-regulated in prickleless mutant. The biochemical and qRT-PCR analysis also confirmed metabolite elevation. These results indicated that the loss of prickle was compensated by elevated secondary metabolism in the prickleless mutant which played important role in the biotic and abiotic stress management.

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Section: Introductionmentioning

confidence: 99%