Observations on the Physiological Races of Colletotrichum lagenarium

Dutta, S. K.; Hall, C. V.; Heyne, E. G.

doi:10.1086/336061

Cited by 11 publications

(5 citation statements)

References 1 publication

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“…The two races selected for further study, T y p e and NC-18, showed the greatest contrast in growth and fruiting on Flavobacterium sp., Hansenula anomala, and Colletotrichum lagenarium, race 2 of Dutta et al ( 2 ) . The latter two organisms support both growth and fruiting of NC-18 but no development of Type, while the reverse is true of Flavobacterium.…”

Section: Studies On Mixed Culturesmentioning

confidence: 95%

Variation in the Cellular Slime Mold Acrasis rosea*

Olive

Dutta

Stoianovitch

1961

The Journal of Protozoology

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A number of isolates of the cellular slime mold, Acrasis rosea, differed from each other in the range of microorganisms on which they could grow and fruit. In a test for the possible occurrence of sexual reproduction and genetic recombination, two of the most widely divergent of these physiological races were studied further. Mixed colonies were obtained in agar plate cultures of Rhodotorula mucilaginosa, a yeast utilized by both. When spores from mature fruiting bodies or amoebae migrating out from the mixed colonies were isolated singly, regrown on Rhodotorula, and tested on a critical spectrum of food microorganisms, about 3‐4% proved to be distinct from the original two strains. Although some of these new types remained stable for several transfers, they eventually reverted to one or both of the parental types. The possibilities of explaining the neotypes on the basis of diploidy, heterokaryosis, or mixed cytoplasmic effects are discussed. The occurrence of cell anastomoses and occasional binucleate cells favors the latter two possibilities.

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Section: Studies On Mixed Culturesmentioning

confidence: 95%

Variation in the Cellular Slime Mold Acrasis rosea*

Olive

Dutta

Stoianovitch

1961

The Journal of Protozoology

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“…The new isolates had no morphological and cultural differences and were considered as different races [48]. Race 4 [49] and races 5, 6, and 7 [50] were also identified later.…”

Section: Pathogen Racesmentioning

confidence: 99%

Recent Advances and Challenges in Management of Colletotrichum orbiculare, the Causal Agent of Watermelon Anthracnose

Patel,

Quesada-Ocampo,

Wehner

et al. 2023

Horticulturae

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The fungus Colletotrichum orbiculare causes watermelon anthracnose and is an important pathogen of watermelon in the United States, causing a significant impact on yield and quality of the produce. The application of fungicides as preventative and post-occurrence control measures is currently being deployed by growers. Further study of the genetic and molecular basis of anthracnose resistance will help in guiding future watermelon breeding strategies. Several conserved virulence factors (effectors) in C. orbiculare have been reported to interact with the host, at times impairing the host immune machinery. A single dominant gene conferring race 1 anthracnose resistance was reported independently on two watermelon germplasm. The recent advances in genomics, transcriptomics, proteomics, and metabolomics could facilitate a better understanding of the interaction between C. orbiculare effectors and host resistance genes in the already sequenced watermelon genome. In this review, we encompass and discuss (i) the history of watermelon anthracnose, taxonomy, morphology, and diversity in races of C. orbiculare; (ii) the epidemiology of the anthracnose disease and host resistance; (iii) the genetics behind the pathogenesis; and (iv) the current advances in breeding and molecular efforts to elucidate anthracnose resistance.

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“…Salinity in soil and irrigation water is a major consideration in citrus production in the arid southwestern United States. Salt tolerance of orange trees is well established (1,4,13,14,19), but information on the long-term effects of salinity on fruit yield and quality is limited. Bingham et al reported that both quantity and quality of oranges, in an 8-year trial, declined with accumulation of soluble salts within the rootzone (4).…”

Section: Additional Index Words Citrus Sinensis Sand Culturementioning

confidence: 99%