Plant Physiol BiochemJClub
Phosphorus supply alleviates chilling-induced physiological injury in cucumber seedlings by attenuating phosphate starvation-associated lipid metabolic responses and modulating carbon metabolism.
Plant Physiology and Biochemistry · · Journal Article · Open access
Xie, Wang + more
Abstract ↗AI summary
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In chilled cucumber seedlings, 4 mM phosphorus maintains higher tissue P and ATP levels and alleviates membrane damage and oxidative stress.
- Why it matters: Chilling restricts cucumber seedling growth, but how phosphorus supply supports chilling adaptation through molecular and metabolic pathways is unclear.
- What they did: Seedlings were grown under normal and chilling conditions across multiple P concentrations, then physiological measurements were integrated with transcriptomic and metabolomic profiling to compare 4 mM versus 0 mM P.
- The result: Relative to 0 mM P, 4 mM P is linked to attenuated phosphate starvation-associated lipid responses and reduced compensatory lipid and carbon-metabolic changes during chilling, plus later-stage signatures involving ABA glycosylation and RNA silencing with higher flavonoid accumulation.
The findingWhy it mattersWhat they didThe result
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