Results 11 to 20 of about 3,377 (163)
Sulfide as a soil phytotoxin - A review [PDF]
Frontiers in Plant Science, 2013 In wetland soils and underwater sediments of marine, brackish and freshwater systems, the strong phytotoxin sulfide may accumulate as a result of microbial reduction of sulfate during anaerobiosis, its level depending on prevailing edaphic conditions. In
Leon P M Lamers +10 more
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Selection of phytotoxin producing rhizobacteria [PDF]
Anais da Academia Brasileira de Ciências, 2011 In order to select phytotoxin producing rhizobacteria to control weed plants, twenty five bacterial strains previously isolated from the rhizospheres of various plants were grown in a liquid medium and, after cell removal by centrifugation, the liquid ...
Daniel D.C. Carvalho +3 more
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Phytotoxins from Tithonia diversifolia [PDF]
Journal of Natural Products, 2015 Tithonia diversifolia (Mexican sunflower) is a dominant plant of the Asteraceae family, which suggests it produces allelochemicals that interfere with the development of surrounding plants. The study described herein was conducted to identify the compounds that have phytotoxic activity in T. diversifolia extracts.
M.Miranda, Maria A. F. +5 more
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Molecular Plant-Microbe Interactions, 2001 Sequencing of an approximately 3.9-kb fragment downstream of the syrD gene of Pseudomonas syringae pv. syringae strain B301D revealed that this region, designated sypA, codes for a peptide synthetase, a multifunctional enzyme involved in the thiotemplate
Brenda K. Scholz-Schroeder +3 more
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Plants, 2020 The use of many fungal phytotoxins as natural herbicides is still limited because they cannot penetrate leaf cuticle without injury and a little is known on their selectivity. In order to assess the herbicidal potential of phytotoxic 10-membered lactones
Vsevolod Dubovik +2 more
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Main Alkaloids of Peganum harmala L. and Their Different Effects on Dicot and Monocot Crops
Molecules, 2013 Alkaloids with allelopathic activity are not as well-known as other allelochemicals. Our study revealed that total alkaloids from seeds of the medicinal plant Peganum harmala L.
Chi Zhang +3 more
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Química Nova, 2013 A bioassay-guided fractionation of culture filtrates of the fungus Alternaria euphorbiicola, a pathogen of the weed Euphorbia heterophylla, led to the isolation of anhydromevalonolactone (1), tyrosol (2), (R)-( - )-mevalonolactone (3), and ...
Eduardo Vinícius Vieira Varejão +3 more
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Toxins, 2023 Phytotoxic macrolides attract attention as prototypes of new herbicides. However, their mechanisms of action (MOA) on plants have not yet been elucidated. This study addresses the effects of two ten-membered lactones, stagonolide A (STA) and herbarumin I
Elena V. Tyutereva +8 more
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Syringomycin, a Bacterial Phytotoxin, Closes Stomata [PDF]
Plant Physiology, 1989 The effects of the bacterial phytotoxin, syringomycin, on stomata were investigated using detached leaves of Xanthium strumarium and isolated epidermes of Vicia faba. Syringomycin is known to cause K(+) efflux in fungal and higher plant cells. Doses of syringomycin as low as 0.3 unit per square centimeter (about 0.88 pmole per square centimeter ...
K A, Mott, J Y, Takemoto
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Molecules, 2019 Fungal phytotoxins used as ecofriendly bioherbicides are becoming efficient alternatives to chemical herbicides for sustainable weed management. Previous study found that cultures of the pathogenic fungus Colletotrichum gloeosporioides BWH-1 showed ...
Zhaolin Xu +5 more
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