Uncovering the complex regulatory network of spring bud sprouting in tea plants: insights from metabolic, hormonal, and oxidative stress pathways.
Uncovering the complex regulatory network of spring bud sprouting in tea plants: insights from metabolic, hormonal, and oxidative stress pathways.
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DOI：
10.3389/fpls.2023.1263606
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发表时间：
2023
影响因子：
5.6
通讯作者：
中科院分区：
文献类型：
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作者：
茶芽的发芽过程是茶叶品质和口感的重要决定因素，从而深刻影响茶产业。芽的萌发也是茶树适应外界环境的重要生物学过程，受复杂的转录和代谢网络调控。本研究旨在通过比较茶树不同发育阶段芽的代谢和转录谱，初步探讨茶树芽萌发的分子基础。研究结果突出了芽萌发调控中的几个重要过程，包括植物激素、葡萄糖代谢和活性氧清除的相互作用。特别是在芽萌发之前，可溶性糖储备的积累和适度的氧化应激可能是促进芽从休眠到活跃生长的关键成分。在发芽开始后，玉米素作为植物激素多方面调节机制的核心成分，激活一系列与生长相关的因子，最终促进芽的生长。这个过程伴随着大量的碳水化合物消耗。此外，还进一步验证了整个越冬芽发育或萌发过程中相关的关键基因和代谢产物。最后，提出了芽萌发调控机制的示意图，为茶芽中复杂的相互作用提供了基本的见解。
The sprouting process of tea buds is an essential determinant of tea quality and taste, thus profoundly impacting the tea industry. Buds spring sprouting is also a crucial biological process adapting to external environment for tea plants and regulated by complex transcriptional and metabolic networks. This study aimed to investigate the molecular basis of bud sprouting in tea plants firstly based on the comparisons of metabolic and transcriptional profiles of buds at different developmental stages. Results notably highlighted several essential processes involved in bud sprouting regulation, including the interaction of plant hormones, glucose metabolism, and reactive oxygen species scavenging. Particularly prior to bud sprouting, the accumulation of soluble sugar reserves and moderate oxidative stress may have served as crucial components facilitating the transition from dormancy to active growth in buds. Following the onset of sprouting, zeatin served as the central component in a multifaceted regulatory mechanism of plant hormones that activates a range of growth–related factors, ultimately leading to the promotion of bud growth. This process was accompanied by significant carbohydrate consumption. Moreover, related key genes and metabolites were further verified during the entire overwintering bud development or sprouting processes. A schematic diagram involving the regulatory mechanism of bud sprouting was ultimately proposed, which provides fundamental insights into the complex interactions involved in tea buds.
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DOI：
10.1093/bioinformatics/btu638
发表时间：
2015-01-15
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Anders S;Pyl PT;Huber W
通讯作者：
Huber W
影响因子：
5.6
作者：
Wang M;Ogé L;Pérez Garcia MD;Launay-Avon A;Clément G;Le Gourrierec J;Hamama L;Sakr S
通讯作者：
Sakr S
影响因子：
2.4
作者：
de la Fuente, Lorena;Conesa, Ana;Rios, Gabino
通讯作者：
Rios, Gabino
影响因子：
5.6
作者：
Hao X;Horvath DP;Chao WS;Yang Y;Wang X;Xiao B
通讯作者：
Xiao B
影响因子：
3.5
作者：
Fedosejevs, Eric T.;Feil, Regina;Plaxton, William C.
通讯作者：
Plaxton, William C.