Aluminum oxyhydroxide polymorphs and some micromorphological characteristics in sclerotium grains |
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| Authors: | Makiko Watanabe Akira Genseki Nobuo Sakagami Yudzuru Inoue Hiroyuki Ohta Nobuhide Fujitake |
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| Institution: | 1. Interdisciplinary Graduate School of Science and Engineering , Tokyo Institute of Technology , Yokohama, 226-8502, Japan;2. Center for Advanced Materials Analysis , Tokyo Institute of Technology , Oota-kul Tokyo, 152-8500, Japan;3. College of Agriculture, Ibaraki University , Mito, 300-0393, Japan;4. Faculty of Agriculture , Kobe University , Kobe, 657-8501, Japan |
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| Abstract: | The presence of aluminum oxyhydroxide and its micromorphological characteristics in sclerotium grains were examined by SEM, TEM, and EDX analyses. A spherical fraction with a diameter of 100 nm, which contained C and Al as the predominant elements, was recognized as the unit particle of the matrix of sclerotium grains. The Al polymorphs and the Si spherical structures found in the ignited grains were assumed to correspond to boehmite and opaline silica particles, respectively. SEMI analysis revealed the presence of a needle ball structure inside the hollow part of sclerotium grains. The relationship between the inner structure of sclerotium and biochemical processes of the host fungi was discussed. |
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| Keywords: | aluminum oxyhydroxide polymorphs boehmite opaline silica particle sclerotium grain |
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