Full TGIF Record # 73804
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Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S1#page=92
    Last checked: 10/16/2015
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Viji, G.; Uddin, W.
Author Affiliation:Department of Plant Pathology, The Pennsylvania State University, University Park, PA
Title:Mating behavior of Magnaporthe grisea isolates causing gray leaf spot (blast) of perennial ryegrass turf
Meeting Info.:2001 APS/MSA/SON Joint Meeting, Salt Lake City, Utah: August 25-29, 2001
Source:Phytopathology. Vol. 91, No. 6, June Supplement 2001, p. S92.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Reproduction; Pyricularia grisea; Gray leaf spot; Lolium perenne; Golf courses; In vitro; Sexual reproduction; Asexual reproduction; Reproductive fertility
Abstract/Contents:"Mating behavior of 126 perennial ryegrass isolates of Magnaporthe grisea (anamorph Pyricularia grisea) collected from 37 golf courses in U.S. from 1998 to 2000 was tested in vitro. Mating type and fertility status were determined by pairing each isolate with fertile hermaphroditic strains of known mating type. Of the 126 isolates tested, 71 (56.3%) were fertile and produced perithecia. Length and width of the ascocarp and neck were 70-120 X 65-115 um and 55-130 X 65-95 um, respectively. Fertility levels were determined by the number of perithecia produced on each 5mm°2 oatmeal agar surface. Of the 71 isolates, 50 (70.4%) were highly fertile (>20 perithecia), 12 (16.9%) were intermediate (10-19 perithecia), and 9 (12.7%) were low in fertility (<10 perithecia). The remaining 55 isolates (43.7%) were infertile. No asci or ascospores were produced regardless of the developmental stage of the perithecia. All the isolates that formed perithecia were male-fertile and belonged to one mating type (MAT1-2). The detection of a single mating type in M. grisea population in ryegrass indicates that sexual reproduction may not exist in nature."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Viji, G., and W. Uddin. 2001. Mating behavior of Magnaporthe grisea isolates causing gray leaf spot (blast) of perennial ryegrass turf. Phytopathology. 91(6):p. S92.
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Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S1#page=92
    Last checked: 10/16/2015
    Requires: PDF Reader
    Notes: Item is within a single large file
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