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Accueil du site → Master → Etats Unis → 2015 → Characterization of root-associated fungal endophytes in cereal grains, and their progenitors

Truman State University (2015)

Characterization of root-associated fungal endophytes in cereal grains, and their progenitors

Bokati, Deepak

Titre : Characterization of root-associated fungal endophytes in cereal grains, and their progenitors

Auteur : Bokati, Deepak

Université de soutenance : TRUMAN STATE UNIVERSITY

Grade : Master of Science (MS) 2015

Résumé
Fungal endophytes can play a determining role in host plant performance. I aimed at characterizing root-associated fungal endophytes in cereal grains and their progenitors, employing both culture-dependent and -independent methods to identify endophytes which successfully colonized greenhouse-grown host plants. This study revealed soil as a prominent factor influencing the composition of microfungal communities inhabiting the roots of maize and its conspecific progenitor, teosinte. Similar results were found in wheat and its progenitor. Multidimensional comparisons of Morisita-Horn similarity values of fungal colonists of various host plant taxa and soil medium treatment configurations indicated that soil plays a primary role in root fungal colonization ; a secondary effect was plant host identity, even when the plant host is a conspecific. Future studies focused on characterizing root endophytes in other cereal grains, and studying effects of various biotic and abiotic factors on fungal colonization, can ultimately contribute to increasing crop productivity. Keywords : Wheat, Maize, Endophyte, Hypocreales, Fusarium spp., Pleosporales, Alternaria spp., microfungal communities, Paraphaeosphaeria spp., progenitor

Mots clés : Fusarium, Molecular biology, Fungal endophyte, Biochemistry, Wheat, Progenitor, Maize, Biological sciences, Pure sciences, Hypocreales

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Page publiée le 17 septembre 2015, mise à jour le 19 novembre 2018