Liu Wenna, Luo Ruili, Wang Hongwei, Jing Yu, Zhao Huaqiang, Zou Weina, Hou Meifang, Song Lili
School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 201418 People's Republic of China.
Physiol Mol Biol Plants. 2025 Apr;31(4):571-590. doi: 10.1007/s12298-025-01588-0. Epub 2025 Apr 26.
The adaptability of Oliv. to shade in the forest is a crucial intrinsic driving force for its natural renewal. Elucidating the influence of shade on biomass and non-structural carbohydrate (NSC) accumulation and allocation in leaf, stem and root will help to understand the endangerment mechanism of Results showed that invested more biomass in leaf than in stem and root under shade. The biomass was positively correlated with the NSC pool in leaf, stem and root, respectively. The biomass fraction of leaf, stem or root was positively correlated with NSC fraction in leaf, stem or root of , respectively. Starch and sucrose metabolism was proved to be the commonly enriched pathway in leaf, stem and root of under shade, the key genes that were regulated differentially by shade. The hub genes regulating accumulation and distribution of biomass and NSC in leaf, stem and root of under shade mainly correlated with photosynthesis, respiration, monosaccharides transportation, and cell expansion. Further research into these hub genes will be helpful for illumination of the adaptation mechanism of to shade.
The online version contains supplementary material available at 10.1007/s12298-025-01588-0.
油橄榄对森林遮荫的适应性是其天然更新的关键内在驱动力。阐明遮荫对叶、茎和根中生物量和非结构性碳水化合物（NSC）积累与分配的影响，将有助于理解油橄榄的濒危机制。结果表明，在遮荫条件下，油橄榄在叶片中投入的生物量多于茎和根。生物量分别与叶、茎和根中的NSC库呈正相关。叶、茎或根的生物量比例分别与油橄榄叶、茎或根中的NSC比例呈正相关。淀粉和蔗糖代谢被证明是遮荫条件下油橄榄叶、茎和根中共同富集的途径，这些关键基因受遮荫差异调控。调控遮荫条件下油橄榄叶、茎和根中生物量和NSC积累与分布的枢纽基因主要与光合作用、呼吸作用、单糖运输和细胞扩张相关。对这些枢纽基因的进一步研究将有助于阐明油橄榄对遮荫的适应机制。
在线版本包含可在10.1007/s12298-025-01588-0获取的补充材料。
