Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Studies on Diplodia and Diplodia-like fungi: III. Variation in Diplodia natalensis from grape in California

Authors

R. K. Webster
W. B. Hewitt
F. J. Polach

Authors Affiliations

R. K. Webster was Assistant Professor of Plant Pathology and Assistant Plant Pathologist in the Experiment Station, Davis; W. B. Hewitt was Professor of Plant Pathology and Plant Pathologist in the Experiment Station, Davis; F. J. Polach was Research Assistant, Department of Plant Pathology, Davis.

Publication Information

Hilgardia 39(22):655-671. DOI:10.3733/hilg.v39n22p655. September 1969.

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Abstract

Single-spore colonies of Diplodia natalensis P. Evans originating from individual pycnidia were compared with each other and with those from different pycnidia from the same grape cane, different canes from the same vineyard, and different vineyards, to evaluate the natural range in variation and stability of taxonomic characters currently used to delimit this species. Distinct colony types were recognized—in some cases as many as four originating from an individual pycnidium. Colony type per se is not considered to be useful for taxonomic purposes. Results suggest that several genera now recognized in this group are congeneric, and indicate a great need for determination of the inherent variation that these fungi are capable of exhibiting.

Literature Cited

Barbe G. Douglas, Hewitt W. B. The principal fungus in the summer bunch rot of grapes. Phytopathology. 1965. 55:815-16.

Bender H. B. Key to the genera Phaeodidymous Sphaeropsidales. 1934. New Haven, Conn.: The Tuttle, Morehouse &; Taylor Co. 52p. Privately published

Clendenin Ida. Lasiodiplodia E. &; E. Bot. Gaz. 1896. 21:92 DOI: 10.1086/327307 [CrossRef]

Evans I. B. P. On the structure and life history of Diplodia natalensis n. sp. Transvaal Dept. Agr. Sci. Bul. 1910. 4:18

Fries E. Elias Fries summa vegetabilium Scandinaviae 1846-1849. p.416.

Goos Roger D., Cox Elsie A., Stotzky G. Botryodiplodia theobromae and its association with Musa species. Mycologia. 1961. 53:262-77. DOI: 10.2307/3756274 [CrossRef]

Griffon W. M., Maublanc A. Sur une maladie du cacaoyer. Bul. Soc. Mycol. France. 1909. 25:51-58.

Grove W. B. British stem and leaf fungi. 1937. 2:406 Vol. (Coelomycetes). London: Cambridge Univ. Press

Hansen H. N. The dual phenomenon in imperfect fungi. Mycologia. 1938. 30:442-55. DOI: 10.2307/3754469 [CrossRef]

Hewitt W. B., Gooding G. V. Jr., Chiarappa L., Butler E. E. Etiology of summer bunch rot of grapes in California. Phytopathology. 1962. 52:13 (Abstract)

Karsten P. A. Diplodiella. Hedwigia. 1884a. 23:62

Karsten P. A. Fragmenta mycologia. 1884b. 16:62

Saccardo P. Michelia. 1880. 2:7

Shear C. L. Life histories of Tryblidiella species. Mycologia. 1933. 25:274-85. DOI: 10.2307/3754096 [CrossRef]

Stevens N. Host relations in species of Diplodia and similar genera. Mycologia. 1941. 33:69-73. DOI: 10.2307/3754737 [CrossRef]

Stevens N. E. Two species of Physalospora on citrus and other hosts. Mycologia. 1926. 18:206-17. DOI: 10.2307/3753719 [CrossRef]

Stevens N. E., Wilcox Marguerite S. The citrus stem end rot Diplodia and its life history and relation to Sphaeropsis malorum. Phytopathology. 1925. 15:332-40.

Taubenhaus J. J. Notes on the probable non-validity of some genera of Phaeodidymous Sphaeropsidales. Amer. Jour. Bot. 1915. 2:324-31. DOI: 10.2307/2435144 [CrossRef]

Verall A. F. A comparison of Diplodia natalensis from stained wood and other sources. Phytopathology. 1942. 32:879-84.

Voorhees R. K. Life history and taxonomy of the fungus Physalospora rhodina. Florida Agr. Exp. Sta. Bul. 1942. 371:

Wardlaw C. W. Observations on the pycnidium of Botryodiplodia theobromae Pat. Ann. Bot. 1932. 46:229-38.

Zambettakis C. E. Clés dichotomiques des généres et des espèces des Phaeodidymae de la famille des Sphaeropsidaceae. Ann. Inst. Phytopath. Benaki. 1953. 7:112-60.

Zambettakis C. E. Recherches sur la systematique des “Sphaeropsidales-Phaeodidymae”. Bul. Soc. Mycol. France. 1954. 70:219-350.

Webster R, Hewitt W, Polach F. 1969. Studies on Diplodia and Diplodia-like fungi: III. Variation in Diplodia natalensis from grape in California. Hilgardia 39(22):655-671. DOI:10.3733/hilg.v39n22p655
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