Progress in the study of <i>Fusarium</i> and some related genera

Brayford, D.

doi:10.1111/j.1365-2672.1989.tb03769.x

Cited by 3 publications

(2 citation statements)

References 64 publications

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“…INA in the so-called F. arthrosporioides supports its placement in the ice nucleation-active species F. avenaceum. The production of ice nucleation-active substances by some Fusanum species might also be useful in taxonomic studies as a nonmorphological approach since primary and secondary metabolites (such as mycotoxins) can be used to separate species (3,34).…”

Section: Resultsmentioning

confidence: 99%

Ice Nucleation Activity in Fusarium acuminatum and Fusarium avenaceum

Pouleur

Richard

Martin

et al. 1992

Appl Environ Microbiol

194

155

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Twenty fungal genera, including 14 Fusarium species, were examined for ice nucleation activity at-5.0°C, and this activity was found only in Fusarium acuminatum and Fusarium avenaceum. This characteristic is unique to these two species. Ice nucleation activity of F. avenaceum was compared with ice nucleation activity of a Pseudomonas sp. strain. Cumulative nucleus spectra are similar for both microorganisms, while the maximum temperatures of ice nucleation were-2.5°C for F. avenaceum and-1.0°C for the bacteria. Ice nucleation activity of F. avenaceum was stable at pH levels from 1 to 13 and tolerated temperature treatments * Corresponding author.

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Section: Resultsmentioning

confidence: 99%

Ice Nucleation Activity in Fusarium acuminatum and Fusarium avenaceum

Pouleur

Richard

Martin

et al. 1992

Appl Environ Microbiol

194

155

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“…Fusarium taxonomy and species designation based on morphological characterization is most frustrating (Brayford, 1989). More than 120 different formae speciales of F. oxysporum have been identified based on specificity to host species belonging to a wide range of plant families some formae speciales are not primarily vascular pathogens but cause foot and root rot or bulb rot (Pietro, Madrid, Caracuel, Jarana, & Roncero, 2003).…”

Section: Discussionmentioning

confidence: 99%

Molecular diagnosis and intraspecific genetic variability of root pathogens of arid legumes in Western Rajasthan, India

Gautam

Singh

Sharma

2016

RBT

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Abstract:The productivity of arid legumes, such as Clusterbean (Cyamopsis tetragonoloba), Cowpea (Vigna unguiculata), Moth bean (Vigna aconitifolia) and Horse gram (Macrotyloma uniflorum), may remain stagnant over decades because of their high susceptibility to root diseases. Besides, there is a limitation on the information about molecular diagnosis and intraspecific genetic variability of root pathogens in arid legumes. To contribute in this field, we assessed a total of 52 isolates from 88 root samples that were found infected with fungal pathogens in Jodhpur, Jaipur and Bikaner Districts of Rajasthan. Diseased roots samples were analyzed following standard microbiological methods for fungus extraction and purification, and for genetic studies. Irrespective of the geographical location from where the diseased samples were collected, all pathogen isolates were clustered in RAPD dendrograms as per their respective genera. Phylogram, based on multiple sequence alignment, revealed that different genera (i.e. Fusarium, Neocosmospora and Syncephalastrum), separated from each other, and species within the same genera, clustered together with their reference sequences with apreciable bootstrap values. Out of 20 representative isolates representing each cluster and all outgroups sequenced, eight were molecularly identified as Neocosmospora vasinfecta, five as Fusarium solani, two as Neocosmospora striata, two as Fusarium acutatum, one as Syncephalastrum monosporum, one as Fusarium oxysporum and one as Fusarium species. The root pathogens of the arid legumes were found neither restricted to a geographical location nor were host specific in nature. Fusarium solani wilt in cowpea and seedling rot in moth bean, F. oxysporum wilt in moth bean, F. acutatum damping off in cowpea and Clusterbean, Fusarium sp. seedling rot in Clusterbean, Neocosmospora striata root rot in cowpea and wilt in Clusterbean and Syncephalastrum monosporum root rot in Clusterbean were molecularly identified as new fungal records as pathogens causing root diseases in arid legumes. Rev. Biol. Trop. 64 (4): 1505-1518. Epub 2016 December 01.

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