Physiological and Transcriptomic Analyses Provide Preliminary Insights into the Autotoxicity of

Overview

Journal Front Plant Sci

Date 2024 May 29

PMID 38807780

Authors

Shumin Zhong

Chuibao Guo

Lu Su

Han Jiang

Xue-Er Wang

Li Shi

Xiaogang Li

Xiaolan Liao

Jin Xue

Affiliations

Soon will be listed here.

Abstract

F. E. Brown ex Miellez var. viridulum Baker (Longya lily) is a variety of F.E. Br. ex Miellez. We used HS-SPME and GC-MS to screened the tissues of roots, stems, bulbs, and leaves and obtained 2,4-DTBP as an autotoxic substance for subsequent analysis. 2,4-DTBP was highly autotoxic in some treatment groups. Based on changes in physiological indicators, we carried out transcriptomic analysis to investigate the mechanisms of autotoxicity of substances on and obtained 188,505 Unigenes. GO and KEGG enrichment analyses showed that responded differently to different concentrations and treatment times of 2,4-DTBP. We observed significant changes in genes associated with ROS, phytohormones, and MAPK signaling cascades. 2,4-DTBP affects chloroplasts, the integrity of the respiratory electron transport chain, and ribosomes, causing autotoxicity. Our findings provide a practical genomic resource for future research on autotoxicity and evidence for the mechanism of action of autotoxic substances.

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