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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 317 - 334 (18page)
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The present study provides the frst report of heterologous expression of phytochelatin synthase from Anabaena PCC 7120 (anaPCS) into the hairy roots of Artemisia annua. Transformed hairy roots of A. annua expressing anaPCS gene showed better tolerance to heavy metals, viz., arsenic (As) and cadmium (Cd) owing to 143 and 191% more As- and Cd-accumulation, respectively, as compared to normal roots with a bioconcentration factor (BCF) of 9.7 and 21.1 for As and Cd, respectively. Under As and Cd stresses, transformed hairy roots possessed signifcantly higher amounts of phytochelatins and thiols probably due to the presence of both AaPCS (Artemisia annua PCS) and anaPCS. In addition, artemisinin synthesis was also induced in transformed hairy roots under heavy metals stresses. In-silico analysis revealed the presence of conserved motifs in both AaPCS and anaPCS sequences as well as structural modelling of PCS functional domain was conducted. Interaction of AaPCS and anaPCS proteins with CdCl2 and sodium arsenate gene ontology analysis gave insights to anaPCS functioning in transformed hairy roots of A. annua. The study provides transformed hairy roots of A. annua as an efcient tool for efective phytoremediation with added advantages of artemisinin extraction from hairy roots used for phytoremediation.
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참고문헌 (67)
참고문헌 신청
Agostini E / 2013 / Application of hairy roots for phytoremediation: what makes them an interesting tool for this purpose? / Appl Microbiol Biotechnol 97(3):1017~1030
Anderson ME / 1985 / Determination of glutathione and glutathione disulfide in biological samples / Methods Enzymol 113:548~555
Bailey TL / 2006 / MEME: discovering and analyzing DNA and protein sequence motifs / Nucleic Acids Res 34:369~373
Ben Ammar W / 2008 / Glutathione and phytochelatin contents in tomato plants exposed to cadmium / Biol Plant 52:314~320
Benkert P / 2009 / QMEAN server for protein model quality estimation / Nucleic Acids Res 37:W510~W514
Anderson ME / 1985 / Determination of glutathione and glutathione disulfide in biological samples / Methods Enzymol 113:548~555
Bailey TL / 2006 / MEME: discovering and analyzing DNA and protein sequence motifs / Nucleic Acids Res 34:369~373
Ben Ammar W / 2008 / Glutathione and phytochelatin contents in tomato plants exposed to cadmium / Biol Plant 52:314~320
Benkert P / 2009 / QMEAN server for protein model quality estimation / Nucleic Acids Res 37:W510~W514
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