Temperature dependence of nitrate uptake kinetics in Triticum aestivum L. and Triticum dicoccon Schrank cultivars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F24%3A10177358" target="_blank" >RIV/00027006:_____/24:10177358 - isvavai.cz</a>
Result on the web
<a href="https://cjgpb.agriculturejournals.cz/pdfs/cjg/2024/04/03.pdf" target="_blank" >https://cjgpb.agriculturejournals.cz/pdfs/cjg/2024/04/03.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/41/2024-CJGPB" target="_blank" >10.17221/41/2024-CJGPB</a>
Alternative languages
Result language
angličtina
Original language name
Temperature dependence of nitrate uptake kinetics in Triticum aestivum L. and Triticum dicoccon Schrank cultivars
Original language description
Temperature is a key parameter that influences the uptake and subsequent utilization of nitrogen by plants. Both suboptimal and supraoptimal temperatures can impair nutrient uptake. The close relatives of bread wheat provide a possible source for breeders to increase stress tolerance. The effect of the increasing temperature (5, 10, 15, 20 and 30 degrees C) on nitrate uptake and metabolism in five modern spring cultivars of bread wheat (Triticum aestivum L.) and two cultivars of emmer wheat (Triticum dicoccon Schrank), was monitored. Wheat plants were grown under controlled conditions in hydroponics. The parameters of Michaelis-Menten kinetics, maximum uptake rate (Vmax), the Michaelis constant (Km) and selected characteristics of nitrate metabolism, the activity of nitrate reductase (NR) and contents of nitrate in leaves were observed. The effect of temperature was significant for all studied traits except Km, while the cultivar factor was significant for Vmax, Km, NR and root/shoot ratio (R/S). Emmer wheat cultivar Rudico had significantly higher Vmax at 5, 15, 20 and 30 degrees C than all bread wheat cultivars, on average 7.07, in comparison with 4.09-4.43 mu mol NO3-/g FW/h in bread wheat cultivars. Emmer wheat Rudico and Tapiruz had significantly higher Km (on average, 41.59 and 47.22 mu M NO3-) than bread wheat cultivars (27.59-33.44 mu M NO3-). Differences in the studied kinetic parameters of nitrate uptake offer the possibility of using T dicoccon genotypes in breeding for better nitrogen use efficiency.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)
Result continuities
Project
<a href="/en/project/QK1910041" target="_blank" >QK1910041: Imaging methods for automatic phenotyping in wheat breeding for resistance to biotic and abiotic stresses</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Czech Journal of Genetics and Plant Breeding
ISSN
1212-1975
e-ISSN
1805-9325
Volume of the periodical
60
Issue of the periodical within the volume
4
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
11
Pages from-to
212-222
UT code for WoS article
001283067400001
EID of the result in the Scopus database
2-s2.0-85205219250