Results 171 to 180 of about 2,514 (209)

UPLC fingerprint of Xanthii Fructus from different habitats

China Journal of Chinese Materia Medica, 2013
This study was establish an UPLC fingerprint of Xanthii Fructus from different habitats, to provide a comprehensive evaluation for its quality control. UPLC-PDA was adopted to analysis of 26 baches of Xanthii Fructus from different habitats. The chromatographic condition was as follow: ACQUITY BEH C18 Column (2.1 mm x 100 mm,1.7 microm) eluted with the
Yan, Hong, Yan-Quan, Han, Lun-Zhu, Xia, Jie, Gui, Xi, Chen, Yan-Hua, Sun   +5 more
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Effects ofPuccinia xanthii onXanthium strumarium [Compositae]

Entomophaga, 1979
Plants ofXanthium strumarium L. were inoculated once withPuccinia xanthii Schw. during the 4 leaf stage, others were inoculated 7 times atca. 2 week intervals beginning at the 4 leaf stage, and others were protected from rust infection with regular fungicidal spray applications. Attack byP.
M. H. Julien, J. E. Broadbent, N. C. Matthews   +2 more
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Sphaerotheca xanthii on Chamomilla suaveolens in Britain

Transactions of the British Mycological Society, 1986
Sphaerotheca xanthii is redescribed and distinguished from 5. erigeronis-canadensis by cleistothecial size.
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Are the microcyclic rust species Puccinia melampodii and Puccinia xanthii conspecific?

Mycological Research, 2009
The taxonomic relationship between two microcyclic rust species, Puccinia melampodii and Puccinia xanthii, recorded from a number of Asteraceae hosts, was explored by comparing teliospore morphology, host specificity and sequence data. Teliospore morphology varied between and within individual rust accessions but, in general, teliospores of P.
Marion K, Seier, Louise, Morin, Marlien, van der merwe, Harry C, Evans, Angel, Romero   +4 more
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[Study on lignans from Xanthii Fructus].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2019
This project is to investigate lignans from the dried fruits of Xanthium sibiricum (Xanthii Fructus). The chemical constituents were extract by 70% ethanol and isolated by silica gel, ODS, Sephadex LH-20, MCI column chromatography. Based on comparison of their spectral data with those reported in literature, they were elucidated as (-)-pinoresinol (1),
Hai, Jiang, Liu, Yang, Xu-Dong, Xing, Mei-Ling, Yan, Xin-Yue, Guo, Xiao-Lin, Su, Yan-Ping, Sun, Bing-You, Yang, Qiu-Hong, Wang, Hai-Xue, Kuang   +9 more
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Puccinia xanthii forma specialis ambrosia-trifidae

Mycopathologia, 1981
The rustPuccinia xanthii forma specialisambrosia-trifidae attacks leaves of giant ragweed,Ambrosia trifida L., significantly reducing seed and pollen production, seed weight and seedling vigor. In tests, teliospores did not infectA. artemisiifolia L.,Xanthium strumarium L., and cultivated varieties of chrysanthemum, safflower, sunflower, cosmos ...
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Host plants of the powdery mildew fungus Podosphaera xanthii in Taiwan

Tropical Plant Pathology, 2020
Podosphaera xanthii is presently considered as one of the powdery mildew fungi with the broadest host range. Confusion is caused by taxonomical and nomenclatural changes of the host plants and the fungal parasite. Based on the list of powdery mildews from Taiwan from 1998, an updated list of host plants of P. xanthii in this country is presented.
Yu-Wei Yeh, Ting-Ying Wu, Hsu-Lun Wen, Herng-Woei Jair, Ming-Zhe Lee, Roland Kirschner   +5 more
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Determination of carboxyatractyloside and atractyloside in Xanthii Fructus by HPLC

China Journal of Chinese Materia Medica, 2012
OBJECTIVE To determine carboxyatractyloside and atractyloside in Xanthii Fructus by HPLC. METHOD By HPLC, Agilent ZORBAX SB-phenyl (4.6 mm x 250 mm, 5 microm) column was adopted, with acetonitrile-0.01 mol x L(-1) NaH2PO4 (pH 6) as the mobile phase for gradient elution at the flow rate of 1.0 mL x min(-1).
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Synergy Between Puccinia xanthii and Colletotrichum orbiculare on Xanthium occidentale

Biological Control, 1993
Abstract Successful infections of Noogoora burr ( Xanthium occidentale ) by Colletotrichum orbiculare and subsequent development of necrotic lesions always occurred on or in proximity of leaf or stem lesions of Puccinia xanthii . Microscopic observations indicated that C. orbiculare behaved as a hemibiotrophic parasite on rust-infected tissue of
L. Morin, B.A. Auld, J.F. Brown
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[Determination of carboxyatractyloside and atractyloside in Xanthii Fructus by HPLC].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2013
To determine carboxyatractyloside and atractyloside in Xanthii Fructus by HPLC.By HPLC, Agilent ZORBAX SB-phenyl (4.6 mm x 250 mm, 5 microm) column was adopted, with acetonitrile-0.01 mol x L(-1) NaH2PO4 (pH 6) as the mobile phase for gradient elution at the flow rate of 1.0 mL x min(-1). The detection wavelength was 203 nm, and the temperature was set
Rui, Duo, Yan, Chen, Yuhong, Liu, Zhifang, Huang, Yunhua, Liu, Jinhai, Yi   +5 more
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