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MnASI1 Mediates Resistance to Botrytis cinerea in Mulberry (Morus notabilis).

ABSTRACT: Six α-amylase/subtilisin inhibitor genes (MnASIs) were identified from mulberry (Morus notabilis). In this study, bioinformatics and expression pattern analysis of six MnASIs were performed to determine their roles in resistance to B. cinerea. The expression of all six MnASIs was significantly increased under Botrytis cinerea infection. MnASI1, which responded strongly to B. cinerea, was overexpressed in Arabidopsis and mulberry. The resistance of Arabidopsis and mulberry overexpressing MnASI1 gene to B. cinerea was significantly improved, the catalase (CAT) activity was increased, and the malondialdehyde (MDA) content was decreased after inoculation with B. cinerea. At the same time, H2O2 and O2- levels were reduced in MnASI1 transgenic Arabidopsis, reducing the damage of ROS accumulation to plants. In addition, MnASI1 transgenic Arabidopsis increased the expression of the salicylic acid (SA) pathway-related gene AtPR1. This study provides an important reference for further revealing the function of α-amylase/subtilisin inhibitors.

SUBMITTER: Wang D 

PROVIDER: S-EPMC9656013 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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<i>MnASI1</i> Mediates Resistance to <i>Botrytis cinerea</i> in Mulberry (<i>Morus notabilis</i>).

Wang Donghao D   Gong Na N   Liu Chaorui C   Li Suxia S   Guo Zhaocheng Z   Wang Gefan G   Shang Qiqi Q   Wang Dongming D   Ji Xianling X   Xin Youchao Y  

International journal of molecular sciences 20221102 21

Six α-amylase/subtilisin inhibitor genes (<i>MnASIs</i>) were identified from mulberry (<i>Morus notabilis</i>). In this study, bioinformatics and expression pattern analysis of six <i>MnASIs</i> were performed to determine their roles in resistance to <i>B. cinerea</i>. The expression of all six <i>MnASIs</i> was significantly increased under <i>Botrytis cinerea</i> infection. <i>MnASI1</i>, which responded strongly to <i>B. cinerea</i>, was overexpressed in <i>Arabidopsis</i> and mulberry. The  ...[more]

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