Acta Botanica Hungarica
Volume/Issue:
Volume 51: Issue 1-2
Photosynthesis performance of non-rolling and flag leaf rolling wheat genotypes during temperature stress
Authors:
G. Sariyeva Issykkul State University Department of Biology 103 Abdrachmanov str. 722200 Karakol Kyrgystan

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S. Kenjebaeva Kazak National University Department of Biotechnology and Plant Physiology 44 Timiryazev str. 480090 Almaty Kazakhstan

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H. Lichtenthaler University of Karlsruhe Botanical Institute II Keiserstr. 12 D-76128 Karlsruhe Germany

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Pages:
185–194
Online Publication Date:
28 Mar 2009
Publication Date:
01 Mar 2009
Article Category:
Journal Article
DOI:
https://doi.org/10.1556/abot.51.2009.1-2.18
Keywords:
carotenoids; chlorophyll; leaf rolling; photosynthesis; stomatal conductivity; wheat genotypes
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The objective of this study is to determine the potential of photosynthesis for the detection of heat stress in three wheat genotypes ‘Grekum 476’, ‘Otan’ and ‘Alba’, which are known to differ in their leaf rolling ability. The results of measurements of gas-exchange, stomatal conductance and pigment determination indicate that the use of a temperature of 40 °C allows to distinguish the non-rolling and leaf rolling wheat genotypes in their photosynthetic responses to heat stress.High temperature acclimation by the leaf rolling wheat genotypes caused marked changes in the pigment composition and function of the photosynthetic apparatus. Thus, stomatal regulation (changes in gH 2 O values), the changes in WUE and modification of the photosynthetic pigment apparatus as well as the up-rolling of the flag leaf at a higher irradiance are essential factors that contribute to avoid heat and drought conditions as well as photoinhibition of the photosynthetic apparatus in major parts of the leaf. The two most leaf up-rolling wheat genotypes ‘Grekum 476’ and ‘Otan’ also exhibited the best stomata regulation, a higher WUE and the highest P N -rates at a 40 °C heat stress than the non-rolling ‘Omskaya 9’ or the low leaf rolling ‘Alba’ genotypes. Thus, photosynthetic net CO 2 assimilation P N and the high degree of flag leaf up-rolling under heat conditions parallel the higher field productivity of ‘Grekum 476’ and ‘Otan’.

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Cover Acta Botanica Hungarica
Acta Botanica Hungarica
Print ISSN:
0236-6495
Online ISSN:
1588-2578

Senior editors

Managing Editors

Editorial Board

  • Gy. BORBÉLY (Debrecen)
  • A. ČARNY (Ljubljana)
  • A. CSERGŐ (Dublin)
  • B. CZÚCZ (Paris)
  • M. HÖHN (Budapest)
  • K. T. KISS (Budapest)
  • A. KUZEMKO (Uman)
  • Z. LOSOSOVÁ (Brno)
  • I. MÁTHÉ (Szeged)
  • E. MIHALIK (Szeged)
  • S. ORBÁN (Eger)
  • R. PÁL (Butte)
  • Gy. PINKE (Mosonmagyaróvár)
  • T. PÓCS (Eger)
  • K. PRACH (České Budejovice)
  • E. S. RAUSCHERT (Cleveland)
  • E. RUPRECHT (Cluj Napoca)
  • G. SRAMKÓ (Debrecen)
  • A. T. SZABÓ (Veszprém)
  • É. SZŐKE (Budapest)
  • B. TOKARSKA-GUZIK (Katowice)
  • B. TÓTHMÉRÉSZ (Debrecen)
  • P. TÖRÖK (Debrecen)

Botta-Dukát, Zoltán
E-mail: botta-dukat.zoltan@okologia.mta.hu

or

Lőkös, László
E-mail: acta@bot.nhmus.hu
Institute: Botanical Department, Hungarian Natural History Museum
Address: Könyves K. krt. 40. H-1097 Budapest, Hungary

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2024  
Scopus  
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SNIP  
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SJR index 0.222
SJR Q rank Q3

2023  
Scopus  
CiteScore 1.7
CiteScore rank Q3 (Plant Science)
SNIP 0.749
Scimago  
SJR index 0.24
SJR Q rank Q3

Acta Botanica Hungarica
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Acta Botanica Hungarica
Language English
French
German
Russian
Spanish
Size B5
Year of
Foundation		 1954
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-6495 (Print)
ISSN 1588-2578 (Online)

 

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