Capitate Glandular Trichomes of Paragutzlaffia henryi Harbor New Phytotoxic Labdane Diterpenoids
Wang,Ying; Luo,Shi-Hong; Hua,Juan; Liu,Yan; Jing,Shu-Xi; Li,Xiao-Nian; Li,Sheng-Hong
2015-11-18
Source PublicationJOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume63Issue:45Pages:10004-10012
Abstract

The morphology and chemical profile of the capitate glandular trichomes (CGTs) of Paragutzlaffia henryi (Acanthaceae) were investigated. Four new labdane diterpenoids named paraguhenryisins A-D (1-4), together with the known physacoztomatin (5), were localized to the CGTs using laser microdissection coupled with cryogenic H-1 NMR and HPLC analyses and were traced and isolated from the CGT extract of inflorescences. Their structures were determined by spectroscopic methods and single-crystal X-ray diffraction. Bioassays indicated significant inhibitory effect for these diterpenoids on Arabidopsis thaliana seed germination and seedling root elongation. The most potent inhibitor, paraguhenryisin C (3), was interestingly detected in both the rhizosphere soil and water rinsed inflorescences extract of P. henryi but not the roots, with average contents in the rhizosphere soil relevant to its phytotoxic EC50 values. These results suggested that phytotoxic labdane diterpenoids in the CGTs might be released into the environment as a defensive measure for P. henryi against other competitive plants.

KeywordParagutzlaffia Henryi Capitate Glandular Trichomes Laser Microdissetion Labdane Diterpenoids Phytotoxic
DOI10.1021/acs.jafc.5b04113
Indexed BySCI
Language英语
WOS IDWOS:000365149100015
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/25249
Collection植物化学与西部植物资源持续利用国家重点实验室
Recommended Citation
GB/T 7714
Wang,Ying,Luo,Shi-Hong,Hua,Juan,et al. Capitate Glandular Trichomes of Paragutzlaffia henryi Harbor New Phytotoxic Labdane Diterpenoids[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2015,63(45):10004-10012.
APA Wang,Ying.,Luo,Shi-Hong.,Hua,Juan.,Liu,Yan.,Jing,Shu-Xi.,...&Li,Sheng-Hong.(2015).Capitate Glandular Trichomes of Paragutzlaffia henryi Harbor New Phytotoxic Labdane Diterpenoids.JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,63(45),10004-10012.
MLA Wang,Ying,et al."Capitate Glandular Trichomes of Paragutzlaffia henryi Harbor New Phytotoxic Labdane Diterpenoids".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 63.45(2015):10004-10012.
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