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BACTERIAL PHYTOTOXINS

Annual Review of Microbiology, 1977
Representatives of all of the major genera of plant disease-causing bacteria have been shown to produce one or more phytotoxins. Toxicological studies on the bacterial diseases of the major food crops have not been extensive. Bacterial phytotoxins belong to a number of classes of organic substances, including peptide, derivatized amino acid ...
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Phytotoxins produced by microbial plant pathogens

Nat. Prod. Rep., 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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Phytotoxins: Environmental Micropollutants of Concern?

Environmental Science & Technology, 2014
Natural toxins such as mycotoxins or phytotoxins (bioactive compounds from fungi and plants, respectively) have been widely studied in food and feed, where they are stated to out-compete synthetic chemicals in their overall human and animal toxicological risk. A similar perception and awareness is yet largely missing for environmental safety.
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Phytotoxins as potential herbicides

Experientia, 1991
Phytotoxins are produced in various culture media by many fungi that are pathogenic to weeds. These phytotoxins belong to a wide array of chemical substances including sesquiterpenoids, sesterterpenoids, diketopiperazines, peptides, spirocyclic lactams, isocoumarins, and polyketides.
G. Strobel   +4 more
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Phytotoxins as molecular signals

1997
It is customary to include under the name of phytotoxins those microbial metabolites that, with the exclusion of enzymes, damage plants at low concentrations. Many plant pathogenic bacteria and fungi produce phytotoxins in culture, but the potential role of these metabolites in pathogenesis has been seldom demonstrated.
P. Aducci, A. Ballio, M. Marra
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Phytotoxins from the fungus Malbranchea aurantiaca

Phytochemistry, 2005
Bioassay-directed fractionation of an ethyl acetate extract from cultures of the fungus Malbranchea aurantiaca led to the isolation of two phytotoxic compounds, namely, 1-hydroxy-2-oxoeremophil-1(10),7(11),8(9)-trien-12(8)-olide (1) and penicillic acid (2).
Sergio, Martínez-Luis   +3 more
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5.6 Bacterial Phytotoxins

1998
Publisher Summary The techniques used in this chapter are widely applicable to all bacterial phytotoxins, most intensively used to study toxins produced by Pseudomonus syringae. The phytotoxins produced by plant pathogenic bacteria are non-host specific and cause symptoms on many plants that cannot be infected by the toxin producing pathogen ...
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Fungal phytotoxins as mediators of virulence

Current Opinion in Plant Biology, 2009
Many phytopathogenic fungi exert their destructive effects by producing and secreting toxic low molecular weight compounds. In the past years a large number of novel fungal virulence factors and their modes of action have been identified. This review highlights effective phytotoxin-mediated strategies to distress, weaken or kill the plant host.
Nadine, Möbius, Christian, Hertweck
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Phytotoxins and Plant Pathogenesis

2001
The idea that metabolites produced by pathogens could be detrimental to plants originated from the experiments of de Bary when he succeeded in reproducing soft-rot symptoms by applying a sterile extract from rotten carrots to healthy tissues in 1886. The concept was advanced by Gaumann when he stated that “microorganisms arc pathogenic only if they are
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Possible Applications of Phytotoxins

1989
Usually, when we begin to study a phytotoxin we are primarily interested in determining what its role is in plant disease production. However, once the structure and how it acts have been elucidated or even before, we frequently find that the toxin has utility in other areas, generally because of its unusual specificity — they are in a sense “silver ...
R. D. Durbin, A. Graniti
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