Adedeji-Badmus Adebimpe N, Schramm Sebastian, Gigl Michael, Iwebema Williams, Albertos Pablo, Dawid Corinna, Sieberer Tobias, Poppenberger Brigitte
Biotechnology of Horticultural Crops, TUM School of Life Sciences, Technical University of Munich, Freising, Germany.
Chair of Food Chemistry and Molecular Sensory Science, TUM School of Life Sciences, Technical University of Munich, Freising, Germany.
Front Plant Sci. 2022 Jul 12;13:923421. doi: 10.3389/fpls.2022.923421. eCollection 2022.
and are plant species native to Africa, but grow in most tropical and subtropical regions of the world. They are rich in vitamins, minerals, and essential oils and are traditional leafy vegetables and medicinal plants in Sub-Saharan Africa. The plants are still mainly collected from the wild but shall be taken into cultivation and an important aim in the domestication of these species is to improve traits that are relevant for crop production. Here, seed formation and germination capacities in and were investigated, and it was found that exhibits a higher level of seed dormancy, which could be broken with light, and was correlated with higher amounts of abscisic acid (ABA), a plant hormone that promotes seed dormancy. ABA is also very well-known for its role in abiotic stress tolerance, and it is shown that tetraploid exhibits a higher level of resistance against drought and heat stress than diploid , traits that will benefit the cultivation of these plants, particularly in rain-fed cropping systems. The potential of to improve nutrition and increase the resilience of marginal cropping systems in Africa is discussed.
[具体植物名称1]和[具体植物名称2]是原产于非洲的植物物种，但在世界上大多数热带和亚热带地区都有生长。它们富含维生素、矿物质和精油，是撒哈拉以南非洲地区传统的叶菜类蔬菜和药用植物。这些植物目前仍主要从野外采集，但应进行人工栽培，而驯化这些物种的一个重要目标是改善与作物生产相关的性状。在此，对[具体植物名称1]和[具体植物名称2]的种子形成和发芽能力进行了研究，发现[具体植物名称1]表现出较高水平的种子休眠，这种休眠可以被光照打破，并且与较高含量的脱落酸（ABA）相关，脱落酸是一种促进种子休眠的植物激素。ABA在非生物胁迫耐受性方面的作用也广为人知，研究表明四倍体[具体植物名称1]比二倍体[具体植物名称2]表现出更高的抗旱和耐热胁迫水平，这些性状将有利于这些植物的栽培，特别是在雨养种植系统中。本文还讨论了[具体植物名称1]在改善非洲边际种植系统营养和提高其恢复力方面的潜力。
