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KLIMEŠOVÁ, J. -- HOLKOVÁ, L. -- STŘEDA, T. Drought stress response in maize: molecular, morphological and physiological analysis of tolerant and sensitive genotypes. Maydica. 2020. v. 65, no. 1, ISSN 2279-8013.

Original name:
Drought stress response in maize: molecular, morphological and physiological analysis of tolerant and sensitive genotypes
Czech name:
Written by (author):
Ing. Jana Klimešová
RNDr. Ludmila Holková, Ph.D.
Ing. Tomáš Středa, Ph.D.
Department:
Department of Crop Science, Breeding and Plant Medicine
Kind of publication: article in a professional periodical
Periodical:
Maydica
Nature of article: original thesis
Volume no. (year):
65
Periodical number within the volume:
1
Year of publication: 2020
Starting page:
Up to page:
Number of pages:
9
Sub-specification: článek je obsažen v databázi Web of Science
UT code by Web of Science:
EID code by Scopus:
Form of publication:
printed version
Original language: English
Description in original language:
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 expression 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.
Description in English:
Description in Czech:
Key words:
czech: water-use efficiency, dehydrinové geny, stres suchem, sap flow, kukuřice
english: water-use efficiency, dehydrin genes, sap flow, maize, drought stress
Field of result:
Agronomy, plant breeding and plant protection
Year of submission:
2020
Year of transmission:
RIV identification number:
Used in projects: Adaptační potenciál odolnosti pšenice k suchu, horku a mrazu
 
Entry made by:
Last change:
05/13/2020 14:27 (Šárka Novotná)

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Source specification:

Maydica. Bergamo: ISSN 2279-8013.

Original name:
Maydica
Czech name:
Written by (author):
Kind of publication:
magazine
ISSN: 2279-8013
Country of publisher:
Italian Republic
Place of publishing:
Bergamo
Publisher:
Istituto sperimentale per la cerealicoltura
URL:
https://journals-crea.4science.it/index.php/maydica/index
Reviewed magazine:
no
Original language:
English
Description in original language:
Description in English:
Description in Czech:
Note: eISSN
 
Entry made by:
Ing. Tomáš Středa, Ph.D.
Last change:
05/13/2020 14:28 (Šárka Novotná)

Evaluation of publication:

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interesting
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45
amateur
 
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        Assessed: 0Average score: -