Naslov
The outcome of moderate and severe drought on morpho-biochemical response in wheat

Autori
Ižaković, Maja ; Flanjak, Ivana ; Cvijetić Stokanović, Milica ; Kučinac, Latica ; Marček, Tihana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
2nd International Student GREEN Conference - Book of Abstracts / Habuda-Stanić, Mirna - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2022, 164-164

ISBN
978-953-7005-91-7

Skup
2. međunarodna studentska GREEN konferencija = 2nd International Students’ GREEN Conference (ISC GREEN 2022)

Mjesto i datum
Osijek, Hrvatska, 02.06.2022. - 03.06.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
drought ; growth ; wheat ; putrescine ; spermidine

Sažetak
Drought is the most widespread abiotic stressor which restricts water availability for living organisms and endangers their survival through the destruction of their natural habitats. In plants, drought causes osmotic stress that usually results in growth reduction and agricultural productivity decline. In the present study, the impact of two drought treatments (10 and 20% PEG) in five wheat genotypes was explored by monitoring the germination, growth, endogenous putrescine (PUT), and spermidine (SPD) content after six days. Seedling water content (SWC), germination index (GI), shoot, and root length decreased with increasing the drought intensity while PUT and SPD content did not provide a unique response. Variations in drought response among genotypes were recorded. In Darija genotype mild drought stress (10% PEG) promoted the production of SPD, SWC values, and shoot growth but decreased PUT content. In Opsesija, both drought treatments caused increased SWC and PUT values. This genotype also showed a tissue-specific response. Namely, under 10% PEG, Opsesija had the highest GI and shoot growth but increased root length under severe drought (20% PEG). Under severe drought intensity, Anica showed the highest GI, shoot length, and increased SPD synthesis. The most sensitive genotype was Mandica with low GI, growth, and PUT accumulation. The results revealed that drought tolerance is a complex trait that relays on genetic properties. Moreover, the role of PUT and SPD in providing drought tolerance is still controversial.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija, Prehrambena tehnologija

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