Plant height affects fusarium crown rot severity in wheat

Liu, Y.X., Yang, X.M., Ma, J., Wei, Y.M., Zheng, Y.L., Ma, H.X., Yao, J.B., Yan, G.J., Wang, Y.G., Manners, J.M. and Liu, C.J. (2010) Plant height affects fusarium crown rot severity in wheat. Phytopathology, 100 12: 1276-1281. doi:10.1094/PHYTO-05-10-0142


Author Liu, Y.X.
Yang, X.M.
Ma, J.
Wei, Y.M.
Zheng, Y.L.
Ma, H.X.
Yao, J.B.
Yan, G.J.
Wang, Y.G.
Manners, J.M.
Liu, C.J.
Title Plant height affects fusarium crown rot severity in wheat
Journal name Phytopathology   Check publisher's open access policy
ISSN 0031-949X
Publication date 2010-12
Year available 2010
Sub-type Article (original research)
DOI 10.1094/PHYTO-05-10-0142
Volume 100
Issue 12
Start page 1276
End page 1281
Total pages 16
Place of publication St. Paul, MN, U.S.A.
Publisher American Phytopathological Society
Collection year 2011
Language eng
Abstract Effects of plant height on Fusarium crown rot (FCR) disease severity were investigated using 12 pairs of near-isogenic lines (NILs) for six different reduced height (Rht) genes in wheat. The dwarf isolines all gave better FCR resistance when compared with their respective tall counterparts, although the Rht genes involved in these NILs are located on several different chromosomes. Treating plants with exogenous gibberellin increased FCR severity as well as seedling lengths in all of the isolines tested. Analysis of the expression of several defense genes with known correlation with resistance to FCR pathogens between the Rht isolines following FCR inoculation indicated that the better resistance of the dwarf isolines was not due to enhanced defense gene induction. These results suggested that the difference in FCR severity between the tall and dwarf isolines is likely due to their height difference per se or to some physiological and structural consequences of reduced height. Thus, caution should be taken when considering to exploit any FCR locus located near a height gene. © 2010 The American Phytopathological Society.
Keyword Fusarium pseudogramincarum
Coleoptile Triticum Vulgare
Dwarfing Genes
Indolyl-3-acetic Acid
Gibberellic-acid
Cell Dimensions
Growth-response
Bread Wheat
Aestivam L.
Disease
Pseudograminearum
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2011 Collection
 
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Created: Sun, 16 Jan 2011, 00:01:51 EST