Identification of salt and drought inducible glutathione S-transferase genes of hybrid poplar

• 발행기관: (사)한국식물생명공학회
• 저자명: Soon-Ho Kwon Hye-Kyoung Kwon Wook Kim Eun Woon Noh Mi Kwon Young Im Choi
• 간행물 정보: 『Journal of Plant Biotechnology』41권 1호, 26~32쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2014.03.31

영문 초록

Recent genome annotation revealed that Populus trichocarpa contains 81 glutathione S-transferase (GST) genes. GST genes play important and varying roles in plants, including conferring tolerance to various abiotic stresses. Little information is available on the relationship . if any . between drought/salt stresses and GSTs in woody plants. In this study, we screened the PatgGST genes in hybrid poplar (Populus alba × Populus tremula var. glandulosa) that were predicted to confer drought tolerance based on our expression analysis of all members of the poplar GST superfamily following exposure to salt (NaCl) and drought (PEG) stresses, respectively. Exposure to the salt stress resulted in the induction of eight PatgGST genes and down-regulation of one PatgGST gene, and the level of induction/repression was different in leaf and stem tissues. In contrast, 16 PatgGST genes were induced following exposure to the drought (PEG) stress, and two were down-regulated. Taken together, we identified seven PatgGSTs (PatgGSTU15, PatgGSTU18, PatgGSTU22, PatgGSTU27, PatgGSTU46, PatgGSTU51 and PatgGSTU52) as putative drought tolerance genes based on their induction by both salt and drought stresses.

목차

Introduction

Materials and methods

Results

Discussion

Acknowledgments

References

키워드

Glutathione S-transferases salt stress drought stress Populus alba×Populus tremula var. glandulosa