Full TGIF Record # 244620
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DOI:10.2307/3760406
Web URL(s):http://www.jstor.org/stable/3760406
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http://www.jstor.org/stable/pdfplus/3760406.pdf
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Publication Type:
i
Refereed
Author(s):Kulik, Martin M.; Dery, Pierre D.
Author Affiliation:Soybean and Alfalfa Research Laboratory, Plant Sciences Institute, Agricultural Research Service, U.S. Department of Agriculutre, Beltsville, Maryland
Title:A bright-field and scanning electron microscopic study of the development of Puccinia zoysiae on Zoysia species and Paederia scandens
Source:Mycologia. Vol. 84, No. 1, January/February 1992, p. 87-93.
Publishing Information:Lancaster, Pennsylvania: New Era Print Co. for the New York Botanical Garden
# of Pages:7
Related Web URL:http://www.jstor.org/stable/info/3760406
    Last checked: 06/12/2014
    Notes: Abstract only
Keywords:TIC Keywords: Disease development; Disease evaluation; Disease identification; Foliar diseases; Pathogenic fungi; Physiological responses; Puccinia zoysia; Rusts; Zoysia
Abstract/Contents:"The development of the heteroecious, macrocyclic rust Puccinia zoysiae on zoysiagrasses (Zoysia spp.) and Paederia scandens was studied using bright-field and scanning electron microscopy. This fungus grows intercellularly through the mesophyll of the zoysiagrass leaf, invading parenchyma cells, and forming haustoria. However, its growth is restricted by the vascular bundles and the bulliform cells, which the fungus does not penetrate. As a consequence, longitudinal lesions are formed, predom- inantly on the adaxial leaf surface. Soon after the onset of infection, paraphyses and echinulate ure- diniospores are produced, and are rapidly exposed due to rupture of the epidermis. Teliospores form later, first within the uredinia, and subsequently in telia which appear on both leaf surfaces. These spores are two-celled, persistent, and pedicellate. They germinated after two months of suspension in water at 4 C, followed by exposure to a saturated atmosphere for 24 hours. Germination begins with the emergence of a basidium (promycelium) from either or both cells of the teliospore. This is followed by the formation of septa and sterigmata from which basidiospores arise. These spores infect leaves of P. scandens, producing inconspicuous, intercellular spermogonia. Aecia form intercellularly and even- tually erupt through the lower leaf surface. The aecial peridium has an unusual double-layered wall, the inner wall of which consists of non-viable aeciospores. Aeciospores are verrucose and are produced in basipetal succession."
Language:English
References:12
Note:Pictures, b/w
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kulik, M. M., and P. D. Dery. 1992. A bright-field and scanning electron microscopic study of the development of Puccinia zoysiae on Zoysia species and Paederia scandens. Mycologia. 84(1):p. 87-93.
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DOI: 10.2307/3760406
Web URL(s):
http://www.jstor.org/stable/3760406
    Last checked: 06/12/2014
    Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/3760406.pdf
    Last checked: 06/12/2014
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: b2214983
MSU catalog number: b5343430
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