scholarly journals Tyrosine-priming modulates phenylpropanoid pathway in maize grown under different pH regimes

2017 ◽  
Vol 45 (2) ◽  
pp. 214-224 ◽  
Author(s):  
S. Mahmood ◽  
I. Hussain ◽  
A. Ashraf ◽  
A. Parveen ◽  
S. Javed ◽  
...  
2021 ◽  
Author(s):  
Sophie de Vries ◽  
Janine MR Fürst‐Jansen ◽  
Iker Irisarri ◽  
Amra Dhabalia Ashok ◽  
Till Ischebeck ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Guilhem Reyt ◽  
Priya Ramakrishna ◽  
Isai Salas-González ◽  
Satoshi Fujita ◽  
Ashley Love ◽  
...  

AbstractLignin is a complex polymer deposited in the cell wall of specialised plant cells, where it provides essential cellular functions. Plants coordinate timing, location, abundance and composition of lignin deposition in response to endogenous and exogenous cues. In roots, a fine band of lignin, the Casparian strip encircles endodermal cells. This forms an extracellular barrier to solutes and water and plays a critical role in maintaining nutrient homeostasis. A signalling pathway senses the integrity of this diffusion barrier and can induce over-lignification to compensate for barrier defects. Here, we report that activation of this endodermal sensing mechanism triggers a transcriptional reprogramming strongly inducing the phenylpropanoid pathway and immune signaling. This leads to deposition of compensatory lignin that is chemically distinct from Casparian strip lignin. We also report that a complete loss of endodermal lignification drastically impacts mineral nutrients homeostasis and plant growth.


2008 ◽  
Vol 8 (1) ◽  
pp. 2 ◽  
Author(s):  
Jeppe Andersen ◽  
Imad Zein ◽  
Gerhard Wenzel ◽  
Birte Darnhofer ◽  
Joachim Eder ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0150129
Author(s):  
Yan Zhang ◽  
Junling Shi ◽  
Laping Liu ◽  
Zhenhong Gao ◽  
Jinxin Che ◽  
...  

2013 ◽  
Vol 66 ◽  
pp. 118-126 ◽  
Author(s):  
Sílvia Tavares ◽  
Damiano Vesentini ◽  
João Carlos Fernandes ◽  
Ricardo B. Ferreira ◽  
Olga Laureano ◽  
...  

2021 ◽  
Vol 22 (24) ◽  
pp. 13366
Author(s):  
Xuechun Wang ◽  
Nan Chao ◽  
Aijing Zhang ◽  
Jiaqi Kang ◽  
Xiangning Jiang ◽  
...  

Caffeoyl shikimate esterase (CSE) hydrolyzes caffeoyl shikimate into caffeate and shikimate in the phenylpropanoid pathway. In this study, we performed a systematic analysis of the CSE gene family and investigated the possible roles of CSE and CSE-like genes in Populus. We conducted a genome-wide analysis of the CSE gene family, including functional and phylogenetic analyses of CSE and CSE-like genes, using the poplar (Populus trichocarpa) genome. Eighteen CSE and CSE-like genes were identified in the Populus genome, and five phylogenetic groups were identified from phylogenetic analysis. CSEs in Group Ia, which were proposed as bona fide CSEs, have probably been lost in most monocots except Oryza sativa. Primary functional classification showed that PoptrCSE1 and PoptrCSE2 had putative function in lignin biosynthesis. In addition, PoptrCSE2, along with PoptrCSE12, might also respond to stress with a function in cell wall biosynthesis. Enzymatic assay of PoptoCSE1 (Populus tomentosa), -2 and -12 showed that PoptoCSE1 and -2 maintained CSE activity. PoptoCSE1 and 2 had similar biochemical properties, tissue expression patterns and subcellular localization. Most of the PoptrCSE-like genes are homologs of AtMAGL (monoacylglycerol lipase) genes in Arabidopsis and may function as MAG lipase in poplar. Our study provides a systematic understanding of this novel gene family and suggests the function of CSE in monolignol biosynthesis in Populus.


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