Alteration of metabolites accumulation in maize inbreds leaf tissue under long-term water deficit
Аутори
Kravić, NatalijaBabić, Vojka
Vukadinović, Jelena
Ristić, Danijela
Dragičević, Vesna
Mladenović Drinić, Snežana
Anđelković, Violeta
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Plants reconfigure their metabolic pathways to cope with water deficit. The aim of this study was to determine the status of the physiological parameters and the content of phenolic acids in the upper most ear leaf of maize inbred lines contrasting in drought tolerance in terms of improved plant productivity e.g., increased grain yield. The experiment was conducted under irrigation and rain-fed conditions. In drought-tolerant lines, the effect of water deficit was reflected through a chlorophyll and nitrogen balance index increase followed by a flavonols index decrease. The opposite trend was noticed in drought susceptible inbreds, with the exception of the anthocyanins index. Moreover, in comparison to irrigation treatment, opposite trends in the correlations between grain yield and physiological parameters found under water deficit conditions indicated the activation of different metabolic pathways in defense against water deficit stress. Concerning phenolic acid content, water defic...it caused the reduction of protocatechuic, caffeic, and sinapic acid in all inbreds evaluated. However, the highly pronounced increase of ferulic and especially cinnamic acid content under water deficit conditions indicated possible crucial role of these secondary metabolites in preventing the harmful effects of water deficit stress, which, in turn, might be useful in maize breeding selection for drought tolerance
Кључне речи:
anthocyanins / chlorophyll / drought / flavonols / grain yield / phenolic acids / Zea mays L.Извор:
Biology, 2021, 10, 8, 694-Издавач:
- Basel : Multidisciplinary Digital Publishing Institute (MDPI)
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200040 (Институт за кукуруз 'Земун поље', Београд-Земун) (RS-MESTD-inst-2020-200040)