Scholarlink

<p>Drought conditions, increasingly prevalent due to climate change, pose a significant threat to the economic viability of ginger farming, leading to substantial yield losses. Seed priming with Polyethylene Glycol (PEG) is a promising strategy for enhancing drought tolerance in various crops. This study evaluated the effects of PEG priming on the germination, growth, and physiological stress response mechanisms of ginger (<i>Zingiber officinale</i>) under progressive drought stress. Healthy ginger rhizomes were primed with PEG 6000. Germination statistics and seedling development were evaluated. Three-month old healthy plants were subjected to drought stress, with sampling conducted on the 7th and 14th days of the drought period. Physiological parameters, Metabolome profiling (GC–MS) and gene expression analysis (qRT-PCR) were utilized to assess adaptive responses. PEG priming significantly hastened germination and accelerated seedling development compared to non-primed plants. Primed plants showed enhanced drought tolerance, evidenced by a significant accumulation of osmoprotectants (proline, carotenoids, and soluble sugars), which contributed to maintaining cellular osmotic balance and enhancing antioxidant defense. Additionally, PEG priming increased the activity of key antioxidant defense enzymes and reduced Malondialdehyde (MDA) content, resulting in minimized oxidative damage. Metabolome profiling and gene expression analysis further demonstrated an efficient adaptive response during the drought period. These findings highlight the potential of PEG priming as a valuable strategy to enhance early drought tolerance in ginger crops, offering a sustainable tool for ginger production in water-limited environments.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

PEG seed priming enhances drought tolerance in ginger through physiological and molecular modulation

  • 期刊论文

  • 发表日期：

    2025年8月14日

查看全文
  • Sinoy Johnson,
  • Sachin Philip,
  • Shandev P.P,
  • Sayuj Koyyappurath

摘要

Drought conditions, increasingly prevalent due to climate change, pose a significant threat to the economic viability of ginger farming, leading to substantial yield losses. Seed priming with Polyethylene Glycol (PEG) is a promising strategy for enhancing drought tolerance in various crops. This study evaluated the effects of PEG priming on the germination, growth, and physiological stress response mechanisms of ginger (Zingiber officinale) under progressive drought stress. Healthy ginger rhizomes were primed with PEG 6000. Germination statistics and seedling development were evaluated. Three-month old healthy plants were subjected to drought stress, with sampling conducted on the 7th and 14th days of the drought period. Physiological parameters, Metabolome profiling (GC–MS) and gene expression analysis (qRT-PCR) were utilized to assess adaptive responses. PEG priming significantly hastened germination and accelerated seedling development compared to non-primed plants. Primed plants showed enhanced drought tolerance, evidenced by a significant accumulation of osmoprotectants (proline, carotenoids, and soluble sugars), which contributed to maintaining cellular osmotic balance and enhancing antioxidant defense. Additionally, PEG priming increased the activity of key antioxidant defense enzymes and reduced Malondialdehyde (MDA) content, resulting in minimized oxidative damage. Metabolome profiling and gene expression analysis further demonstrated an efficient adaptive response during the drought period. These findings highlight the potential of PEG priming as a valuable strategy to enhance early drought tolerance in ginger crops, offering a sustainable tool for ginger production in water-limited environments.