Lignin deposition in chickpea root xylem under drought
- 14 April 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Plant Signaling & Behavior
- Vol. 15 (6), 1754621
- https://doi.org/10.1080/15592324.2020.1754621
Abstract
In our recent publication, we have shown that a member of the Laccase family, LACCASE2 (LAC2) acted as a negative regulator of lignin deposition in the root xylem tissue of Arabidopsis thaliana. LAC2 messenger RNA (mRNA) level was post-transcriptionally regulated by microRNA 397b, which showed increased expression under water and phosphate deficiency, resulting in the downregulation of LAC2 expression In this report, we have investigated root growth and lignin deposition in an economically important legume crop chickpea (Cicer arietinum L.) in response to natural drought in soil-grown condition. In contrast to the growth retardation of Arabidopsis root in mannitol-supplemented medium, chickpea root showed an increase in length in low soil moisture condition. Lignin estimation in the primary root showed an increase in lignin content, which was substantiated by staining of root xylem. Drought treatment enhanced the expression of four out of six LAC genes tested, while the expression of two was downregulated. Our preliminary study indicateed a molecular mechanism of lignin deposition in chickpea root xylem during drought.Keywords
Funding Information
- Department of Biotechnology, Government of India (BT/PR3304/AGR/02/815/2011; BT/HRD/35/01/03/2014)
This publication has 15 references indexed in Scilit:
- The MicroRNA397b-LACCASE2 Module Regulates Root Lignification under Water and Phosphate DeficiencyPlant Physiology, 2020
- Maize lateral root developmental plasticity induced by mild water stress. I: Genotypic variation across a high‐resolution series of water potentialsPlant, Cell & Environment, 2018
- The Biphasic Root Growth Response to Abscisic Acid in Arabidopsis Involves Interaction with Ethylene and Auxin Signalling PathwaysFrontiers in Plant Science, 2017
- Root hydraulics: The forgotten side of roots in drought adaptationField Crops Research, 2014
- Differences in Cowpea Root Growth Triggered by Salinity and Dehydration are Associated with Oxidative Modulation Involving Types I and III Peroxidases and Apoplastic AscorbateJournal of Plant Growth Regulation, 2012
- Tolerance of photosynthesis to photoinhibition, high temperature and drought stress in flag leaves of wheat: A comparison between a hybridization line and its parents grown under field conditionsPlant Science, 2006
- Progressive Inhibition by Water Deficit of Cell Wall Extensibility and Growth along the Elongation Zone of Maize Roots Is Related to Increased Lignin Metabolism and Progressive Stelar Accumulation of Wall PhenolicsPlant Physiology, 2005
- Lignin Formation in Plants. The Dilemma of Linkage SpecificityPlant Physiology, 2001
- Growth of Arabidopsis thaliana seedlings under water deficit studied by control of water potential in nutrient‐agar mediaJournal of Experimental Botany, 2000
- Semiarid Crop Production from a Hydrological Perspective: Gap between Potential and Actual YieldsCritical Reviews in Plant Sciences, 2000