Induction of infection in Teosinte (Zea diploperennis) through the phytopathogen Ustilago maydis.
DOI:
https://doi.org/10.19230/jonnpr.1154Keywords:
Ustilago maydis, teosinte, Zea diploperennis, infection, huitlacocheAbstract
Introduction: The corn and teosinte share morphological and molecular similarities latter being those that support the theory of teosinte (Zea parviglumis) as its predecessor, both species are attacked by specific pathogens like Ustilago maydis.
Objective: To analyze the infectious process that presents U. maydis on the variety of the teosinte Zea diploperennis.
Materials and Methods: We used the strain of U. maydis FB-D12, which was kept a culture media rich in nutrients (CPES) pH 7.0. Viable cells without morphological alterations to the inoculation method of puncture in teosinte seedlings were used. Monitoring of
infection was carried out every 24 hours by measuring concentration of chlorophyll and plant tissue through microscopic observation
Results: In the seedlings of Zea diploperennis inoculated with U. maydis the symptoms of the infection were presented, wilt and chlorosis in the leaves; The chlorosis was confirmed with the low concentration of chlorophyll 12 days later to the inoculation. In the
microscopic observation of cuts of the tissue plant was found mycelium long and branched from the third day of the inoculation, until the appearance of tumors in seedlings of 45 days.
Conclusions: The typical signs of infection with Ustilago maydis in the variety of teosinte Zea diploperennis do not differ from those reported for corn. Ustilago maydis presents its full life cycle within the plant, confirming that the diploperennis variety is susceptible.
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