Temperature dependence of nitrate uptake kinetics in Triticum aestivum L. and Triticum dicoccon Schrank cultivars

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature dependence of nitrate uptake kinetics in Triticum aestivum L. and Triticum dicoccon Schrank cultivars

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Temperature dependence of nitrate uptake kinetics in Triticum aestivum L. and Triticum dicoccon Schrank cultivars

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/QK1910041" target="_blank" >QK1910041: Využití zobrazovacích metod pro automatické fenotypování ve šlechtění na rezistenci k biotickým a abiotickým stresům u pšenice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Czech Journal of Genetics and Plant Breeding

ISSN

1212-1975

e-ISSN

1805-9325

Svazek periodika

60

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

212-222

Kód UT WoS článku

001283067400001

EID výsledku v databázi Scopus

2-s2.0-85205219250