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H2S is synthesized via CBS/CSE pathway and triggered by cold conditions during Agaricus bisporus storage
Liu, Ye; Pei, Yuncheng; Zhu, Dan; Liu, Xuying; Li, Wenxiang; Cheng, Fansheng.
  • Liu, Ye; Qingdao Agricultural University. College of Food Science and Engineering. Qingdao. CN
  • Pei, Yuncheng; Qingdao Agricultural University. College of Food Science and Engineering. Qingdao. CN
  • Zhu, Dan; Qingdao Agricultural University. College of Life Science. Qingdao. CN
  • Liu, Xuying; Qingdao Agricultural University. College of Food Science and Engineering. Qingdao. CN
  • Li, Wenxiang; Qingdao Agricultural University. College of Food Science and Engineering. Qingdao. CN
  • Cheng, Fansheng; Qingdao Agricultural University. College of Food Science and Engineering. Qingdao. CN
Electron. j. biotechnol ; 50: 23-28, Mar. 2021. graf, ilus
Article in English | LILACS | ID: biblio-1292311
Responsible library: CL1.1
ABSTRACT

BACKGROUND:

H2S is proved to be functioning as a signaling molecule in an array of physiological processes in the plant and animal kingdom. However, the H2S synthesis pathway and the responses to cold conditions remain unclear in postharvest mushroom.

RESULTS:

The biosynthesis of H2S in the Agaricus bisporus mushroom tissues exhibited an increasing tendency during postharvest storage and was significantly triggered by cold treatment. The cystathionine clyase (AbCSE) and cystathionine b-synthase (AbCBS) genes were cloned and proved responsible for H2S biosynthesis. Furthermore, transcriptional and posttranscriptional regulation of AbCSE and AbCBS were crucial for the enzyme activities and subsequent H2S levels. However, the AbMST was not involved in this process. Moreover, the AbCSE and AbCBS genes displayed low identity to the characterized genes, but typical catalytic domains, activity sites, subunit interface sites, and cofactor binding sites were conserved in the respective protein sequences, as revealed by molecular modeling and docking study. The potential transcription factors responsible for the H2S biosynthesis in cold conditions were also provided.

CONCLUSIONS:

The H2S biosynthetic pathway in postharvest mushroom was unique and distinct to that of other horticultural products.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Agaricus / Cystathionine beta-Synthase / Cystathionine gamma-Lyase / Hydrogen Sulfide Type of study: Prognostic study Language: English Journal: Electron. j. biotechnol Journal subject: Biotechnology Year: 2021 Type: Article Affiliation country: China Institution/Affiliation country: Qingdao Agricultural University/CN

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Full text: Available Index: LILACS (Americas) Main subject: Agaricus / Cystathionine beta-Synthase / Cystathionine gamma-Lyase / Hydrogen Sulfide Type of study: Prognostic study Language: English Journal: Electron. j. biotechnol Journal subject: Biotechnology Year: 2021 Type: Article Affiliation country: China Institution/Affiliation country: Qingdao Agricultural University/CN