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Establishment of Salvia castanea Diels f. tomentosa Stib. hairy root cultures and the promotion of tanshinone accumulation and gene expression with Ag+, methyl jasmonate, and yeast extract elicitation
被引:62
|作者:
Li, Bo
[1
]
Wang, Bangqing
[1
,2
]
Li, Hongyan
[1
]
Peng, Liang
[1
,3
]
Ru, Mei
[4
]
Liang, Zongsuo
[1
]
Yan, Xijun
[5
]
Zhu, Yonghong
[5
]
机构:
[1] Northwest A&F Univ, Coll Life Sci, Yangling 712100, Peoples R China
[2] Hanzhong Inst Bot, Hanzhong 723000, Peoples R China
[3] Shaanxi Univ Chinese Med, Coll Pharm, Xian 712046, Peoples R China
[4] Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
[5] Tianjin Tasly Holding Grp Co Ltd, Tianjin 300410, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Salvia castanea Diels f. tomentosa Stib;
Hairy root cultures;
Elicitors;
Tanshinone;
Gene expression;
CELL-SUSPENSION CULTURES;
SECONDARY METABOLITES;
CATHARANTHUS-ROSEUS;
SILYBUM MARIANUM;
ELICITOR;
MILTIORRHIZA;
BIOSYNTHESIS;
TRANSFORMATION;
ENHANCEMENT;
BIOREACTOR;
D O I:
10.1007/s00709-015-0790-9
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
Salvia castanea Diels f. tomentosa Stib. is an endemic medicinal plant distributed in China, and the notably high content of tanshinone IIA in the root is proven effective for the therapy of heart diseases. Hairy root induction of this Salvia species was inoculated with Agrobacterium rhizogenes strain ATCC 15834. Transformed hairy root was cultured in 6,7-V liquid medium for growth kinetics assessment and elicitation. An S curve was present in the hairy root cultures based on the fresh and dry weights with an interval of 3 days. An optimum concentration of the applied elicitors (15 mu M Ag+, 200 mu M methyl jasmonate, and 200 mg l(-1) yeast extract elicitor) benefitted both the growth status and tanshinone accumulation in the hairy root cultures. Tanshinone IIA contents were mostly stimulated 1.8-fold and 1.99-fold compared with the control by Ag+ and methyl jasmonate elicitation, respectively. Yeast extract dramatically enhanced dry mass accumulation, while it promoted cryptotanshinone content of 2.84 +/- 0.33 mg g(-1) dry weight at most in the hairy root cultures. Selected elicitors diversely influenced tanshinone accumulation in the time courses of hairy root cultures within 7 days. Furthermore, transcripts of selected genes in the tanshinone biosynthetic pathway were remarkably upregulated with elicitation. Yeast extract elicitor heightened 13.9-fold of isopentenyl diphosphate isomerase expression level at 12 h, while it increased 16.7-fold of geranylgeranyl diphosphate synthase transcript at 24 h compared with that of the control, which was more effective than Ag+ and methyl jasmonate. This study provided a convenient hairy root culture system of S. castanea Diels f. tomentosa Stib. for tanshinone production for the first time.
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页码:87 / 100
页数:14
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