Results 131 to 140 of about 706 (159)

Photoactivated Perylenequinone Toxins in Plant Pathogenesis

2009
Fungi that parasitize plants have at their disposal a large and diverse set of tools required for successful colonization of their hosts. Among the most effective of these strategies is the production of phytotoxic compounds that play multiple roles in plant disease.
Margaret E. Daub, Kuang-Ren Chung
openaire   +1 more source

Photodynamic-induced vascular damage of the chick chorioallantoic membrane model using perylenequinones.

International Journal of Oncology, 2004
The chorioallantoic membrane (CAM) assay is a widely used bioassay in early in vivo cancer research. The CAM allows non-invasive study of in vivo microvasculature and blood circulation. This report describes the first topical application investigation of
W. W. Chin, W. Lau, Saw Lay Lay, K. K. Wei, M. Olivo   +4 more
semanticscholar   +1 more source

Heat stress enhanced perylenequinones biosynthesis of Shiraia sp. Slf14(w) through nitric oxide formation

Applied Microbiology and Biotechnology, 2023
Chenglong Xu, Wenxi Lin, Yunni Chen, Bo-Liang Gao, Zhi-Bin Zhang, Du Zhu   +5 more
semanticscholar   +1 more source

A new perylenequinone from the fruit bodies of Bulgaria inquinans

Journal of Asian Natural Products Research, 2006
A new perylenequinone, 4,9-dihydroxy-1,2,11,12-tetrahydroperylene-3,10-quinone (1), together with three known compounds, have been isolated from the ethanolic extract of the fruit bodies of Bulgaria inquinans, and their structures elucidated on the basis of the spectral data and comparison with the literature.
P Z, Xian Li, N L, Jing Xu, D-L, Meng, Y, Sha   +3 more
openaire   +2 more sources

Variance of charges in the process of isomerization of perylenequinone

Journal of Photochemistry and Photobiology A: Chemistry, 1999
AM1 method was employed to calculate the variance of charges for hydrogen and oxygen in the process of isomerization of perylenequinone (PQ) in different states. It was found that (i) charge of hydrogen increased at the beginning, and then decreased with the change of reaction coordinate.
openaire   +1 more source

Altenusins and Perylenequinones from the Soil-Derived Fungus Alternaria sp.

Chemistry of Natural Compounds, 2023
S. Pang, Yang Chen, Xiao-Qiang Huang, Liyi Li, Qing-Feng Guo   +4 more
semanticscholar   +1 more source

Reactive Oxygen Species in Plant Pathogenesis: The Role of Perylenequinone Photosensitizers

Antioxidants & Redox Signaling, 2013
Reactive oxygen species (ROS) play multiple roles in interactions between plants and microbes, both as host defense mechanisms and as mediators of pathogenic and symbiotic associations. One source of ROS in these interactions are photoactivated, ROS-generating perylenequinone pigments produced via polyketide metabolic pathways in plant-associated fungi.
Margaret E, Daub, Sonia, Herrero, Kuang-Ren, Chung   +2 more
openaire   +2 more sources

[Studies on the chemical constituents of a fungus producing perylenequinones].

Yao xue xue bao = Acta pharmaceutica Sinica, 2004
To study the chemical constituents in the mycelia of Hypomyces sp..Silica gel column chromatography was employed for the isolation and purification. Chemical and spectral methods were used to determine the structures of the isolated compounds.Two compounds were isolated and identified as: hypomycin C (I) and hypomycin D (II).Compounds I and II are new ...
Yun-xiu, Shen, Wei-zhong, Liu, Xian-guo, Rong, Yi-hua, Sun   +3 more
openaire   +1 more source

Enhanced production of perylenequinones in the endophytic fungus Shiraia sp. Slf14 by calcium/calmodulin signal transduction

Applied Microbiology and Biotechnology, 2017
Bin Liu, Jianying Bao, Zhi-Bin Zhang, R. Yan, Ya Wang, Hui-Lin Yang, Du Zhu   +6 more
semanticscholar   +2 more sources

Antimicrobial perylenequinones isolated from the endophytic fungus Alternaria alstroemeriae

Phytochemistry Letters
Yong-Fu Li, Fang Yue, Xu-Ri Wan, Chang Li, Yi Sun, Yuehu Pei   +5 more
semanticscholar   +1 more source