Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 26-32 |
| Number of pages | 7 |
| Journal | Journal of Plant Biotechnology |
| Volume | 41 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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Keywords
- Drought stress
- Glutathione S-transferases
- Populus alba × Populus tremula var. glandulosa
- Salt stress
ASJC Scopus subject areas
- Biotechnology
- Agronomy and Crop Science
- Plant Science
Cite this
Identification of salt and drought inducible glutathione S-transferase genes of hybrid poplar. / Kwon, Soon Ho; Kwon, Hye Kyoung; Kim, Wook; Noh, Eun Woon; Kwon, Mi; Choi, Young Im.
In: Journal of Plant Biotechnology, Vol. 41, No. 1, 01.01.2014, p. 26-32.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Identification of salt and drought inducible glutathione S-transferase genes of hybrid poplar
AU - Kwon, Soon Ho
AU - Kwon, Hye Kyoung
AU - Kim, Wook
AU - Noh, Eun Woon
AU - Kwon, Mi
AU - Choi, Young Im
PY - 2014/1/1
Y1 - 2014/1/1
N2 - 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.
AB - 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.
KW - Drought stress
KW - Glutathione S-transferases
KW - Populus alba × Populus tremula var. glandulosa
KW - Salt stress
UR - http://www.scopus.com/inward/record.url?scp=84900807165&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84900807165&partnerID=8YFLogxK
U2 - 10.5010/JPB.2014.41.1.26
DO - 10.5010/JPB.2014.41.1.26
M3 - Article
AN - SCOPUS:84900807165
VL - 41
SP - 26
EP - 32
JO - Journal of Plant Biotechnology
JF - Journal of Plant Biotechnology
SN - 1229-2818
IS - 1
ER -