转录组分析揭示了甲基斯酸盐在低温下缓解果果的成熟障碍的潜在机制
Lisha Zhu1, Ting Huang1, Jialiang Liu1
1School of Food Science and Engineering, Hainan University, Haikou 570228, PR China.
Food chemistry
|September 5, 2024
概括
甲基莉酸盐 (MeJA) 治疗有效地减少了果中冷却诱导的成熟障碍. 这项研究揭示了MeJA.
科学领域:
- 园艺科学 园艺科学
- 植物生理学 植物生理学
- 分子生物学分子生物学
背景情况:
- 果对低温具有很高的敏感性,导致冷却损伤和成熟失败.
- 这大大限制了果的可销售性和保质期.
研究的目的:
- 调查甲基莉酸盐 (MeJA) 对缓解冷藏期间果成熟障碍的影响.
- 阐明潜在的分子机制,包括基因表达和调节网络.
主要方法:
- 果被用50μM的甲基斯酸盐 (MeJA) 处理,并存储在冷藏中.
- 进行了转录组分析 (RNA-Seq),以确定差异表达的基因.
- 定量实时PCR (qRT-PCR) 用于表征特定的转录因子和与成熟相关的基因.
- 生物信息分析确定了转录因子结合部位和cis作用元素,以构建调节网络.
- 酵母的一种混合测试验证了转录因子和基因促进体之间的相互作用.
主要成果:
- 治疗MeJA显著改善了成熟障碍,加速了关键的成熟参数.
- 转录组分析发现了17414个不同表达的基因,涉及乙烯合成,细胞壁降解,粉降解和糖运输.
- 鉴定了8种AP2/ERF转录因子和12种与成熟相关的基因.
- 构建并验证了涉及ERF转录因子在MeJA介导的成熟障碍缓解中的监管网络.
结论:
- 甲基斯酸盐有效地抵消了果中低温诱导的成熟障碍.
- 该研究阐明了涉及ERF转录因子的监管网络,这些因子调解这些效应.
- 这些发现为提高果耐寒性和提高收获后质量提供了理论基础.
更多相关视频
08:39Author Spotlight: Polysome Profiling Protocol for Studying Translational Regulation in Arabidopsis Under Heat Stress
Published on: October 11, 2024
1.5K
07:22Generating Homo- and Heterografts Between Watermelon and Bottle Gourd for the Study of Cold-responsive MicroRNAs
Published on: November 20, 2018
7.7K
相关概念视频
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Transcription Attenuation in Prokaryotes
15.2K
Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure. Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
15.2K
