Low Nitrogen Stress Promotes Root Nitrogen Uptake and Assimilation in Strawberry: Contribution of Hormone Networks

نویسندگان

چکیده

Low nitrogen stress severely impedes crop growth and productivity. There has been substantial research on root adaptation to low conditions in many plant species. However, the mechanism underlying morphological response of strawberry (Fragaria × ananassa Duch.) low-NO3− or low-NH4+ remains poorly understood. Strawberry plants were hydroponically cultivated under 1 mM NO3−, NH4+, control (15 NO3−) assess physiological responses their roots stress. As a result, stresses increased fresh weight root, lateral density, surface area, as well enhanced accumulation indole-3-acetic acid jasmonic while significantly reducing salicylic roots. Correspondingly, PM H+-ATPase activity. Low-NO3− activities nitrate reductase glutamine synthetase, whereas treatment led higher synthetase glutamate synthase activities. Collectively, present results demonstrate that enhance uptake by regulating hormones (indole-3-acetic acid, acid) thereby mediating activity, promoting metabolism upregulating reductase, synthase. In conclusion, may facilitate more efficient acquisition available N from soil system.

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ژورنال

عنوان ژورنال: Horticulturae

سال: 2023

ISSN: ['2311-7524']

DOI: https://doi.org/10.3390/horticulturae9020249