Vielba Jesús M, Vidal Nieves, José M Carmen San, Rico Saleta, Sánchez Conchi
Department of Plant Physiology, Instituto de Investigaciones Agrobiológicas de Galicia, Consejo Superior de Investigaciones Científicas, 15705 Santiago de Compostela, Spain.
Plants (Basel). 2020 Nov 11;9(11):1543. doi: 10.3390/plants9111543.
The genus includes several tree species that are relevant because of their geographical extension and their multipurpose character, that includes nut and timber production. However, commercial exploitation of the trees is hindered by several factors, particularly by their limited regeneration ability. Regardless of recent advances, there exists a serious limitation for the propagation of elite genotypes of chestnut due to decline of rooting ability as the tree ages. In the present review, we summarize the research developed in this genus during the last three decades concerning the formation of adventitious roots (ARs). Focusing on cuttings and in vitro microshoots, we gather the information available on several species, particularly , and the hybrid × , and analyze the influence of several factors on the achievements of the applied protocols, including genotype, auxin treatment, light regime and rooting media. We also pay attention to the acclimation phase, as well as compile the information available about biochemical and molecular related aspects. Furthermore, we considerate promising biotechnological approaches that might enable the improvement of the current protocols.
该属包括几种具有重要意义的树种，因其地理分布范围广且具有多种用途，包括坚果生产和木材生产。然而，这些树木的商业开发受到多种因素的阻碍，尤其是其有限的再生能力。尽管有了近期的进展，但由于随着树龄增长生根能力下降，板栗优良基因型的繁殖仍存在严重限制。在本综述中，我们总结了过去三十年中该属关于不定根形成的研究进展。重点关注插条和离体微枝，我们收集了几种树种的现有信息，特别是[具体树种1]、[具体树种2]以及杂交种[具体杂交种]，并分析了几个因素对所应用方案成效的影响，包括基因型、生长素处理、光照条件和生根培养基。我们还关注驯化阶段，并汇编了有关生化和分子相关方面的现有信息。此外，我们考虑了可能有助于改进当前方案的有前景的生物技术方法。
