« Previous AbstractThe integrity of the nucleus of the lateral olfactory tract is essential for the normal functioning of the olfactory system    Next Abstract"The bacterial volatile N,N-dimethyl-hexadecylamine promotes Arabidopsis primary root elongation through cytokinin signaling and the AHK2 receptor" »

Protoplasma

Title:		The bacterial volatile dimethyl-hexa-decylamine reveals an antagonistic interaction between jasmonic acid and cytokinin in controlling primary root growth of Arabidopsis seedlings
Author(s):		Vazquez-Chimalhua E; Ruiz-Herrera LF; Barrera-Ortiz S; Valencia-Cantero E; Lopez-Bucio J;
Address:		"Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio A1', Ciudad Universitaria, C. P, 58030, Morelia, Michoacan, Mexico. Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio A1', Ciudad Universitaria, C. P, 58030, Morelia, Michoacan, Mexico. vcantero@umich.mx. Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio A1', Ciudad Universitaria, C. P, 58030, Morelia, Michoacan, Mexico. jbucio@umich.mx"
Journal Title:		Protoplasma
Year:		2019
Volume:		20181031
Issue:		3
Page Number:		643 - 654
DOI:		10.1007/s00709-018-1327-9
ISSN/ISBN:		1615-6102 (Electronic) 0033-183X (Linking)
Abstract:		"Chemical communication underlies major adaptive traits in plants and shapes the root microbiome. An increasing number of diffusible and/or volatile organic compounds released by bacteria have been identified, which play phytostimulant or protective functions, including dimethyl-hexa-decylamine (DMHDA), a volatile biosynthesized by Arthrobacter agilis UMCV2 that induces jasmonic acid (JA) signaling in Arabidopsis. Here, he found that the growth repressing effects of both DMHDA and JA are antagonized by kinetin and correlated with an inhibition of cytokinin-related ARR5::GUS and TCS::GFP expression in Arabidopsis primary roots. Moreover, we demonstrate that shoot supplementation of JA triggers JAZ1 expression both locally and systemically and represses cytokinin-dependent promoter activity in roots. A similar effect was observed after cotyledon wounding, in which an increase of JA-inducible LOX2:GUS expression represses root growth, which correlates with the loss of TCS::GFP detection at the very root tip. Our data demonstrate that the bacterial volatile DMHDA crosstalks with cytokinin signaling and reveals the downstream antagonistic interaction between JA and cytokinin in controlling root growth"
Keywords:		"Arabidopsis/drug effects/genetics/growth & development/*metabolism Bacteria/*metabolism Cotyledon/drug effects/metabolism Cyclopentanes/*metabolism Cytokinins/*metabolism Gene Expression Regulation, Plant/drug effects Kinetin/pharmacology Methylamines/*me;"
Notes:		"MedlineVazquez-Chimalhua, Ernesto Ruiz-Herrera, Leon Francisco Barrera-Ortiz, Salvador Valencia-Cantero, Eduardo Lopez-Bucio, Jose eng 2.26/Universidad Michoacana de San Nicolas de Hidalgo/ Austria 2018/11/02 Protoplasma. 2019 May; 256(3):643-654. doi: 10.1007/s00709-018-1327-9. Epub 2018 Oct 31"