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As the development of manned space technology, how to grow and reproduce plant under microgravity in space for long−term has become an important research topic. In addition, understanding the gravitropic response mechanism is of great significance for comprehending the nature of crops adapting the Earth's gravity environment and breeding high−yield crops for controlled ecological life support system (CELSS) in space. In recent years, as application of biology techniques in the study of plant gravitropic responses and microgravity adaptation, along with improved multi−omics platforms and simulated microgravity devices, the mechanism of gravitropism in plants has been relatively thoroughly elucidated. We summarize the key scientific issues of the recent advances in the study of gravitropic and microgravity responses, and systematically review the research progress on plants in space at physiological, gene and protein expression, cell structure, phenotypic and developmental process levels. Furthermore, we discussed and prospected the challenges and issues concerning the lack of systematic theoretical construction and resource constraints under closed cultivation modes for in-situ food production in future manned deep-space exploration.
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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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