Magnolol from Magnolia officinalis inhibits Neopestalotiopsis ellipsospora by damaging the cell membrane
Year: 2024
Type: article
Abstract: Tea gray blight disease is a significant threat to the tea industry. In this study, a biological activity approach was utilized to investigate the efficacy of green fungicides from Magnolia officinalis stem bark against Neopestalotiopsis ellipsospora . The active compounds were isolated and purified, and their structures were elucidated. In vitro and in vivo activity screenings revealed that the n-hexane extract, which contained magnolol and honokiol, exhibited strong activity against N. ellipsospora , showing complete inhibition at 100 mg/L. The EC 50 values of magnolol and honokiol were 5.11 and 6.09 mg/L, respectively. Mechanistically, magnolol was found to disrupt N. ellipsospora invasion by damaging the cell membrane, increasing permeability, and causing leakage of intracellular substances. Transcriptome analysis revealed that magnolol treatment downregulates membrane-related genes and leads to the enrichment of lipid metabolism pathway genes. This study revealed that magnolol inhibits N. ellipsospora growth by affecting lipid metabolism and compromising cell membrane integrity.
Source: Scientific Reports
Authors: Jiying Zhang, Jianmei Yao, Chiyu Ma, Huifang Liu, Wen Yang, Zhiwei Lei
Institutions: Guizhou University, Guizhou Academy of Agricultural Sciences
Language: English
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $2,590
Award: G191304163
OpenAlex ID: W4403634079