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Correlations between Phytohormones and Drought Tolerance in Selected Brassica Crops: Chinese Cabbage, White Cabbage and Kale (CROSBI ID 254637)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Pavlović, Iva ; Petřík, Ivan ; Tarkowská, Danuše ; Lepeduš, Hrvoje ; Vujčić Bok, Valerija ; Radić Brkanac, Sandra ; Novák, Ondřej ; Salopek-Sondi, Branka Correlations between Phytohormones and Drought Tolerance in Selected Brassica Crops: Chinese Cabbage, White Cabbage and Kale // International journal of molecular sciences, 19 (2018), 10; 2866, 23. doi: 10.3390/ijms19102866

Podaci o odgovornosti

Pavlović, Iva ; Petřík, Ivan ; Tarkowská, Danuše ; Lepeduš, Hrvoje ; Vujčić Bok, Valerija ; Radić Brkanac, Sandra ; Novák, Ondřej ; Salopek-Sondi, Branka

engleski

Correlations between Phytohormones and Drought Tolerance in Selected Brassica Crops: Chinese Cabbage, White Cabbage and Kale

Drought is one of the major abiotic stresses affecting the productivity of Brassica crops. To understand the role of phytohormones in drought tolerance, we subjected Chinese cabbage (B. rapa ssp. pekinensis), white cabbage (B. oleracea var. capitata), and kale (B. oleracea var. acephala) to droughta nd examined the stress response on the physiological, biochemical and hormonal levels. The phytohormones abscisic acid (ABA), auxin indole-3-acetic acid (IAA), brassinosteroids (BRs), cytokinins (CKs), jasmonates (JAs), and salicylic acid (SA) were analyzed by ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS). Based on the physiological and biochemical markers the Chinese cabbage exhibited the lowest tolerance, followed by the white cabbage, while the kale appeared to be the most tolerant to drought. The drought tolerance of the kale correlated with increased levels of SA, ABA, IAA, CKs iP(R) and cZ(R), and typhasterol (TY), a precursor of active BRs. In contrast, the drought sensitivity of the Chinese cabbage correlated with a significant increase in ABA, JAs and the active BRs castasterol (CS) and brassinolide (BL). The moderately tolerant white cabbage, positioned between the kale and Chinese cabbage, showed more similarity in terms of the phytohormone patterns with the kale. We concluded that the drought tolerance in Brassicaceae is mostly determined by the increased endogenous levels of IAA, CKs, ABA and SA and the decreased levels of active BRs.

Brassica crops ; phytohormones ; drought ; recovery ; tolerance

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Podaci o izdanju

19 (10)

2018.

2866

23

objavljeno

1422-0067

10.3390/ijms19102866

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Povezanost rada

Biologija

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