Wubin Dai¹, Xiuting Ju^1,2, Guomin Shi^1,2, Jialei Guo^3,4, Tao He^3,4,*

Phyton-International Journal of Experimental Botany, Vol.93, No.5, pp. 1023-1042, 2024, DOI:10.32604/phyton.2024.050066

Abstract Saussurea inversa is one of the Tibetan medicine with developed aerenchyma. In this study, we investigated the function of the ShCTR1 gene related to the formation of aerenchyma. The study of the occurrence and formation of aerenchyma in S. inversa has certain theoretical significance in revealing the special mechanism of alpine plants adapting to the environment. The results of yeast two-hybrid experiments showed that S. inversa ShCTR1 interacted with the ShRBOH1, which is a key producer of reactive oxygen species (ROS), and it was hypothesized that ShCTR1 regulation of aerenchyma formation in S. inversa mainly mediated by ROS. Aerenchyma induction and… More >

Xiaofang Yu^#,*, Linjie Yue^#, Qing Wu, Liu Yang, Chunyu Fan, Zhiwen Wang, Jiani Hu

Phyton-International Journal of Experimental Botany, Vol.91, No.10, pp. 2135-2162, 2022, DOI:10.32604/phyton.2022.020139

Abstract Iris pseudacorus is a widely cultivated and studied ornamental plant with a large biomass, strong adaptability and extensive management. Moreover, it has the ability to decontaminate and enrich heavy metals. However, few studies have been conducted on its submergence tolerance with little known about the molecular response of I. pseudacorus to flooding. Morphologically, I. pseudacorus had strong adaptability to waterlogging, the aerenchyma was gradually enlarged and adventitious roots developed between 0 and 14 d. The transcriptome data showed that the differentially expressed genes counts in plants flooded for 2 h, 4 h, 12 h and 24 h compared… More >