Uncovering the Host Range for Maize Pathogen Magnaporthiopsis maydis

Plants
Shlomit Dor, Ofir Degani

Abstract

The fungus Magnaporthiopsis maydis is a soil-borne, seed-borne vascular wilt pathogen that causes severe damage to sensitive Zeamays L. (maize) hybrids throughout Egypt, Israel, India, Spain, and other countries. It can undergo virulence variations and survive as spores, sclerotia, or mycelia on plant residues. Maize, Lupinustermis L. (lupine) and Gossypiumhirsutum L. (cotton) are the only known hosts of M. maydis. Identification of new plant hosts that can assist in the survival of the pathogen is an essential step in restricting disease outbreak and spread. Here, by field survey and growth chamber pathogenicity test, accompanied by real-time PCR analysis, the presence of the fungal DNA inside the roots of cotton (Pima cv.) plants was confirmed in infested soil. Moreover, we identified M. maydis in Setariaviridis (green foxtail) and Citrulluslanatus (watermelon, Malali cv.). Infected watermelon sprouts had delayed emergence and development, were shorter, and had reduced root and shoot biomass. M. maydis infection also affected root biomass and phenological development of cotton plants but caused only mild symptoms in green foxtail. No M. maydis DNA was detected in Hordeumvulgare (barley, Noga cv.) and the plants showed no dise...Continue Reading

References

Oct 10, 1980·Nucleic Acids Research·M G Murray, W F Thompson
Sep 10, 1998·The American Surgeon·A J HerlineW C Chapman
Mar 1, 2006·BMC Bioinformatics·Joshua S YuanC Neal Stewart
Sep 5, 2014·Molecular Ecology·Pu HuangElizabeth A Kellogg
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