24-Epibrassinolide promotes NO₃^- and NH₄⁺ ion flux rate and NRT1 gene expression in cucumber under suboptimal root zone temperature.

ABSTRACT:

Background

Suboptimal root zone temperature (RZT) causes a remarkable reduction in growth of horticultural crops during winter cultivation under greenhouse production. However, limited information is available on the effects of suboptimal RZT on nitrogen (N) metabolism in cucumber seedlings. The aim of this study is to investigate the effects of 24-Epibrassinolide (EBR) on nitrate and ammonium flux rate, N metabolism, and transcript levels of NRT1 family genes under suboptimal RZT in cucumber seedlings.

Results

Suboptimal RZT (LT) negatively affected on cucumber growth and proportionately decreased EBR contents, bleeding rate, root activity, enzyme activities of nitrate reductase (NR), nitrite reductase (NiR), glutamine synthetase (GS), and glutamate synthase (GOGAT), nitrat

SUBMITTER: Anwar A 

PROVIDER: S-EPMC6543628 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature