Physiological Responses of Sage (Salvia officinalis L.) to Salinity Stress under Gamma-Aminobutyric Acid (GABA)

September 30, 2025Journal of Plant Environmental Physiology فیزیولوژی محیطی گیاهیOpen Access

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Key Points

This study aims to evaluate the effect of gamma-aminobutyric acid on the salinity tolerance of sage (Salvia officinalis).
Conducted in a greenhouse setting with a completely randomized factorial design
Included salinity treatments at 0, 50, and 100 mM and GABA treatments at 0, 25, and 50 µM
Measured physiological traits including chlorophyll content and antioxidant capacity.
GABA treatment at 25 µM significantly increased chlorophyll a, b, total chlorophyll, and carotenoids under mild salinity (50 mM)
Salinity at 50 and 100 mM elevated phenol content significantly, with GABA also increasing phenol levels at 25 and 50 µM
Dry matter of sage decreased by 16.5% and 31% at 50 and 100 mM salinity respectively, while GABA improved dry matter by 29.2% and 22.5% compared to control.

Investigates GABA's effect on sage's salinity tolerance, suggesting improvement in physiological traits.

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Moradi et al. (2025) studied this question.

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