Zhaoli Chen, Ying Liu^*, Bingshan Zeng, Qingbin Jiang, Shengkun Wang, Xiangyang Li

Phyton-International Journal of Experimental Botany, Vol.92, No.10, pp. 2891-2906, 2023, DOI:10.32604/phyton.2023.030664 - 15 September 2023

Abstract Michelia macclurei Dandy is a significant tree species that has extensive cultivation for forestry and horticulture purposes in southern China, owing to its economic and practical importance. Light quality influences plantlet growth and development during tissue culture. However, the growth characteristic and molecular regulation of M. macclurei under different light quality conditions are not well understood yet. In this study, we investigated the morphological, chlorophyll content, and transcriptomic responses of M. macclurei plantlets under different light-emitting diode (LED) qualities, including white, blue, and red light. The results showed that blue light significantly increased plant height (21.29%) and leaf… More >

S. J. Reyes-Zambrano^1,†, M. L. Ramírez-Merchant^1,†, C. Arias-Castro², M. A. Rodríguez-Mendiola², C. A. Lecona-Guzmán¹, V. M. Ruíz-Valdiviezo¹, D. González-Mendoza³, F. A. Gutiérrez-Miceli^1,*

Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 277-284, 2019, DOI:10.32604/phyton.2019.06504

Abstract A. americana L. is a crop with very little genetic variability. In order to evaluate the effect of ethyl methanesulfonate (EMS) to induce variability in in vitro plantlets of A. americana, different explants (meristems, leaves and roots) were evaluated for the production of callus. MS medium supplemented with ANA (2.68 μM) and BAP (2.68 μM) was used. Callus obtained from apical meristem were treated with 15 mM EMS for two hours after which shoot formation was induced using 2,4-D (0.11 μM) and BAP (44 μM). The EMS induced variations in the morphometric and morphological parameters of the plantlets More >