Germination of sclerotia of <i>Botrytis tulipae</i>, the cause of tulip fire

Coley‐Smith, J. R.; Javed, Zoya

doi:10.1111/j.1744-7348.1972.tb02944.x

Cited by 17 publications

(7 citation statements)

References 7 publications

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“…Sclerotial viability was lowest at 0 cm fov sclerotia of B. cinerea and B. tulipae. This contrasts with the results of Coley-Smith & Javed (1972), who found greater recovery and viability for B. tulipae sclerotia at the surface than for those buried at depths of 7-5, 15 0 or 23 0 cm during the 18-month monitoring period. Average monthly soil temperatures for the different soil depths are presented in Fig.…”

Section: Resultscontrasting

confidence: 99%

Production and viability of sclerotia from fungicide‐resistant and fungicide‐sensitive isolates of Botrytis cinerea, B. elliptica and B, tulipae

Hsiang

Chastagner

1992

Plant Pathology

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Production of sclerotia by isolates of three Botrytis spp. differing in resistance to benzimidazole and dicarboximide fungicides was compared in vitro. Sensitive isolates of B. cinerea and B. tulipae produced fewer sclerotia than benzimidazole‐resistant isolates, but there were no differences in the size of sclerotia within each species. For B. elliptica, sclerotia of dicarboximide‐resistant isolates were larger and less numerous than those of sensitive isolates. Sclerotia from fungicide‐resistant and ‐sensitive isolates of B. elliptica. B. tulipae and B. cinerea were produced in vitro, placed in nylon bags, set in loam soil at soil depths of 0, 10 and 20 cm, and recovered periodically after 1‐18 months. Sclerotial viability declined during the 18 months, and was lowest at the soil surface for sclerotia of B. cinerea and B. tulipae. For B. elliptica, sclerotial viability of fungicide‐sensitive isolates was reduced to 50% after 18 months, compared to 21 % for dicarboximide‐resistant isolates, when averaged over all depths. Sensitive isolates of B. tulipae maintained a trend of higher viability than benzimidazole‐resistant ones, and fungicide‐sensitive isolates showed greater viability at 18 months (49%) than did benzimidazole‐resistant ones (27%). No differences in sclerotial viability were apparent between the fungicide‐resistant and ‐sensitive isolates of B. cinerea, with an average viability of 77% after 18 months. After 18 months of field exposure, all isolates retained their original fungicide‐resistance groupings, indicating the persistence of fungicide resistance in sclerotia.

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Section: Resultscontrasting

confidence: 99%

Production and viability of sclerotia from fungicide‐resistant and fungicide‐sensitive isolates of Botrytis cinerea, B. elliptica and B, tulipae

Hsiang

Chastagner

1992

Plant Pathology

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“…Epidemics of B. tulipae are able to start from over-wintering sclerotia in crop debris or soil, or by latent infections in bulbs. In view of the long crop rotation schemes and the observation that sclerotia cannot survive in soil for more than two growing seasons, the most probable primary sources of inoculum are the latent infections in bulbs (Coley-Smith & Javed, 1972).…”

Section: Discussionmentioning

confidence: 99%

AFLP analysis of genetic diversity in populations of Botrytis elliptica and Botrytis tulipae from the Netherlands

2006

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The objective of this study was to assess the genetic diversity and to infer the mode of reproduction of Botrytis elliptica and B. tulipae in the Netherlands. First, three molecular typing methods were compared for their ability to differentiate isolates of B. tulipae, B. elliptica, and B. cinerea. The methods compared were multilocus sequencing, restriction analysis of the ribosomal intergenic spacer (IGS) region, and amplified fragment length polymorphism (AFLP) analysis. AFLP fingerprinting provided the most efficient method to differentiate isolates within each Botrytis species and therefore this method was used for population analyses of B. elliptica and B. tulipae. Isolates of both species were sampled during successive growing seasons in experimental field plots in Lisse and other locations in the Netherlands. Among 174 B. elliptica isolates, 105 genotypes could be discriminated and 87 genotypes were found only once, reflecting high genotypic variation. Clonal genotypes were found only within growing seasons and in one location. Linkage disequilibrium analyses indicated that between 9.4% and 19.3% of the loci in clonecorrected samples were linked. The multilocus association index provided no evidence for random mating. We conclude that sexual recombination occurs in the B. elliptica population. Among the 170 B. tulipae isolates, 25 genotypes could be discriminated and four genotypes were found only once, reflecting a low genotypic variation. Clonal genotypes were frequently found in different growing seasons and different locations. Linkage disequilibrium analyses indicated that between 25.2% and 48.6% of the loci in clone-corrected samples were linked. We conclude that the B. tulipae population is mainly clonal with some recombination.

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“…Observations made at 2-4 weeks intervals in the autumn showed that growth of the pathogen in the outer scale starts soon after planting. If the fungus, which can originate from various sources (Doornik and Bergman, 1971, 1973, 1974Coley-Smith and Javed, 1972), spreads strongly through the scales after planting, the first symptoms on the tunics of offspring bulbs may be found as early as several weeks before the plant flowers. Usually, however, these symptoms are seen after flowering, when the young bulbs start to grow vigorously.…”

Section: Sources and Modes Of Infection During The Gro Wing Periodmentioning

confidence: 99%

“…) Lind from various sources, viz. conidia present on the bulb surface (Doornik and Bergman, 1974), mycelium present in the brown tunic or in local lesions in the outer scale (Price, 1970;Doornik and Bergman, 1971), or inoculum in the soil (Coley-Smith and Javed, 1972;Doornik and Bergman, 1974). However, there is no information in the literature on the mode and source of infection of the offspring bulbs during the growth period and during storage after harvest.…”

Section: Introductionmentioning

confidence: 96%

Infection of offspring tulip bulbs by Botrytis tulipae during the growth period and after lifting

Doornik¹,

Bergman²

1975

Netherlands Journal of Plant Pathology

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Germination of sclerotia of Botrytis tulipae, the cause of tulip fire

Cited by 17 publications

References 7 publications

Production and viability of sclerotia from fungicide‐resistant and fungicide‐sensitive isolates of Botrytis cinerea, B. elliptica and B, tulipae

Production and viability of sclerotia from fungicide‐resistant and fungicide‐sensitive isolates of Botrytis cinerea, B. elliptica and B, tulipae

AFLP analysis of genetic diversity in populations of Botrytis elliptica and Botrytis tulipae from the Netherlands

Infection of offspring tulip bulbs by Botrytis tulipae during the growth period and after lifting

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