Drought stress response in maize: molecular, morphological and physiological analysis of tolerant and sensitive genotypes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F20%3A43917800" target="_blank" >RIV/62156489:43210/20:43917800 - isvavai.cz</a>

Alternative codes found

RIV/00020699:_____/20:N0000079

Result on the web

<a href="https://journals-crea.4science.it/index.php/maydica/article/view/2024/1264" target="_blank" >https://journals-crea.4science.it/index.php/maydica/article/view/2024/1264</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Drought stress response in maize: molecular, morphological and physiological analysis of tolerant and sensitive genotypes

Original language description

The aim of this work was to develop a physiological method based on transpiration in combination with molecular methods, i.e., dehydrin gene expression analysis, for identifying the reactions of maize (Zea mays L.) plants that display different levels of tolerance to drought stress during the generative growth stage. Drought stress was induced in two genotypes, 2087 and 2637, by four irrigation treatments. The rate of transpiration and the ex-pression of the dehydrin genes ZmDHN1 and ZmDHN2 were dependent on genotype and duration and intensity of stress. The yield components were affected by the level of dehydrin gene expression and transpiration rate. Compared with genotype 2637, genotype 2087 a) maintained higher transpiration intensity, even under strong drought stress conditions, b) exhibited an earlier onset and a higher level of expression both at a lower stress intensity and during the initial phases of the stress reaction, c) showed higher values of yield components, and d) was characterized by a lower water-use efficiency of cob yield. Drought tolerance is of increasing importance and is one of the breeding targets in maize. However, traditional breeding methods have numerous limitations. The simultaneous use of new molecular genetic techniques and physiological methods could therefore help to elucidate the genetic and physiological basis of plant responses to drought stress and provide more accurate evaluation for screening parental breeding material.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Maydica

ISSN

0025-6153

e-ISSN

—

Volume of the periodical

65

Issue of the periodical within the volume

1

Country of publishing house

IT - ITALY

Number of pages

9

Pages from-to

"Nestrankovano"

UT code for WoS article

000588508600001

EID of the result in the Scopus database

2-s2.0-85084697844