Hydrogen Sulfide Affects the Root Development of Strawberry During Plug Transplant Production

Jiangtao Hu, Yali Li, Ya Liu, Dong Il Kang, Hao Wei and Byoung Ryong Jeong
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Jiangtao Hu: Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea
Yali Li: Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea
Ya Liu: Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea
Dong Il Kang: Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea
Hao Wei: Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea
Byoung Ryong Jeong: Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea

Agriculture, 2020, vol. 10, issue 1, 1-11

Abstract: Hydrogen sulfide (H 2 S) is endogenously produced in plant cells and plays an essential role in root development. Given its potential for future agricultural applications, the optimal concentration of sodium hydrosulfide (NaHS, an H 2 S donor) and the potential mechanisms for root development in the strawberry ‘Seolhyang’ were investigated in this study. The results showed that NaHS with a concentration of 1.250 mM had a positive effect on root development in strawberry. Further experiments showed that exogenous NaHS elevated the H 2 S content in the root. The dry root weight was increased by the 1.250 mM NaHS treatment, but was reduced by the hypotaurine (an H 2 S scavenger) treatment. Similar changes were found between H 2 S and soluble sugar contents, indicating that H 2 S enhanced the accumulation of soluble sugar. Therefore, it is suggested that the accumulation of soluble sugar induced by H 2 S is either directly or indirectly involved in root development in strawberry during plug production. Moreover, superoxide dismutase was shown to have contributed to the elevated H 2 O 2 contents. These results contribute to our understanding of the role that H 2 S plays and some of the relevant mechanisms in which H 2 S regulates root development.

Keywords: antioxidant enzyme; hydrogen peroxide; hydrogen sulfide; root development; soluble sugar (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
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