林通过提高抗氧化能力来抑制麻瓜的收获后生理恶化
Yanqiong Tang1, Chengliang Yan1, Hong Li1
1School of Life and Health Sciences, Hainan University, Haikou, 570228, China.
Phytochemistry
|May 18, 2024
概括
麻瓜的收获后生理恶化 (PPD) 会造成重大损失. 补充一种关键氨基酸 - - 林,通过对抗氧化损伤和延长保质期,有效地减少PPD.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 生物化学 生物化学
背景情况:
- 大麻 (Manihot esculenta Crantz) 由于收获后的生理恶化 (PPD) 而遭受重大经济损失.
- 反应性氧物种 (ROS) 积累与PPD有关,氨基酸可能调节ROS和信号通路.
- 在菜品种之间存在储存性能的显著差异.
研究的目的:
- 调查大麻PPD中自由氨基酸的作用.
- 为了确定可以抑制PPD的特定氨基酸.
- 评估外源性氨基酸补充剂在缓解麻豆PPD中的有效性.
主要方法:
- 评估了八种麻豆品种的储存性能.
- 对不同品种的自由氨基酸进行了比较分析.
- 在敏感品种中应用已识别的氨基酸的外源补充.
- 测量了恶化速度,过氧化 (H2O2) 含量和抗氧化酶活动 (catalase,超氧化物失调酶,亚斯科巴特过氧化酶).
主要成果:
- 大麻品种SC5表现出优越的储存性能,而SC9显示出劣质的储存质量.
- 氨酸,酸,氨酸,谷氨酸,氨酸,氨酸和氨酸水平在各品种之间差异很大.
- 在SC9.9中,以5g/L的外源性プロ林补充剂显著抑制了PPD.
- 林治疗降低了17.9%的恶化率,降低了H2O2水平,并增强了抗氧化酶活性.
结论:
- 林被确定为抑制大麻PPD的关键氨基酸.
- 外源性普罗林的应用有效地减轻了氧化损伤,并延长了麻豆的保质期.
- 这一发现提供了一个有前途的策略,以减少收获后麻豆的损失.
相关概念视频
Adaptations that Reduce Water Loss
25.5K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.5K
Key Elements for Plant Nutrition
18.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.7K
The Calvin Benson Cycle
4.5K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.5K


