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Outline
Cereal starch endosperm is the main source of human staple food, but the methods for observing its mature cell structure are not well developed. Micro CT technology, a non-destructive three-dimensional imaging technique, is a powerful tool for studying plant morphology. However, due to the uniform density of cereal starch endosperm, whose cell structures cannot be distinguished clearly by conventional micro CT techniques. In this study, we used phosphotungstic acid to treat ten different kinds of cereal seeds of seven crops, and then dried them by CO2 critical point dryer. We found that the cell structure of the treated endosperms can be clearly displayed by micro CT. Our method provides a new way for studying the structures and functions of cereal starch endosperm cells.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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