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Role of NINJA in root jasmonate signaling

2013; National Academy of Sciences; Volume: 110; Issue: 38 Linguagem: Inglês

10.1073/pnas.1307910110

1091-6490

Iván F. Acosta, Debora Gasperini, Aurore Chételat, Stéphanie Stolz, Luca Santuari, Edward E. Farmer,

Plant and animal studies

Significance Plant growth, the basis of agricultural production, is compromised when plants defend themselves against herbivores.Wound-induced growth reduction is coordinated between organs by hormones termed “jasmonates.” We developed a sensitive assay that marks tissues where wounding activates jasmonate function in seedlings. This assay showed that a key repressor of jasmonate responses is active mainly in roots where it permits normal growth. A deeper understanding of cell-size control is crucial in successfully engineering plants that display reduced growth restriction under stress.