Title : ( Strigolactone (GR24) and Abscisic Acid Induced Drought Tolerance in Wheat by Ameliorating Nutrient Uptake )
Authors: maryam moosavi , Reza Khorassani , Reza Tavakkol Afshari ,Abstract
Cross-talk between strigolactones (SLs) and abscisic acid (ABA) in the presence of arbuscular mycorrhizal fungi (AMF) plays an important role in plants resistance to drought stress. SLs and ABA can be involved in plant-AMF interaction through nutrient uptake and physio-biochemical characteristics. Therefore, the present study was conducted to investigate the effects of wheat seed priming with GR24 (0, 2.5, 5 and 10 μM), AMF (without and with AMF) and ABA foliar application (0 and 5 mg L− 1) under drought stress conditions during the vegetative growth stage. The results showed that the application of GR24 at a concentration of 5 μM in the presence of AMF increased the tolerance of the wheat plant to drought stress by improving the root area, nutrient uptake and physiological and biochemical characteristics. These treatments increased the root area, and uptake of P, K and Ca by 66, 13, 56 and 32%, respectively. The third level of GR24 (5 μM) with AMF also increased the physio-biochemical parameters, including relative water content, soluble sugar, proline and total phenol by 20, 45, 63 and 65%, respectively, and reduced electrolyte leakage by 50%. oreover, ABA increased the effectiveness of GR24 in the presence of the fungus in some parameters such as P and K uptake, electrolyte leakage and proline. Therefore, the findings of this study indicated that the application of GR24, ABA and AMF can be considered as a strategy to increase nutrient uptake and wheat growth under drought stress conditions
Keywords
AMF symbiosis · Foliar application · Moisture stress · Plant nutrition · Seed priming@article{paperid:1100326,
author = {Moosavi, Maryam and Khorassani, Reza and Tavakkol Afshari, Reza},
title = {Strigolactone (GR24) and Abscisic Acid Induced Drought Tolerance in Wheat by Ameliorating Nutrient Uptake},
journal = {Journal of Plant Growth Regulation},
year = {2024},
month = {October},
issn = {0721-7595},
keywords = {AMF symbiosis · Foliar application · Moisture stress · Plant nutrition · Seed priming},
}
%0 Journal Article
%T Strigolactone (GR24) and Abscisic Acid Induced Drought Tolerance in Wheat by Ameliorating Nutrient Uptake
%A Moosavi, Maryam
%A Khorassani, Reza
%A Tavakkol Afshari, Reza
%J Journal of Plant Growth Regulation
%@ 0721-7595
%D 2024