Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff
With age adding, the area ratio of phloem and xylem decreases in Ch. smyrnioides. Differentiation of vascular cambium is active in 34 years root. The vascular bundle of stem is the type of double phloem. The anther is tetrasporangiate. Simultaneous cytokinesis in the microspore mother cell follows m...
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| Format: | Article |
| Language: | English |
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Zhejiang University Press
2000-07-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2000.04.0427 |
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| author | QIU Ying-xiong FU Cheng-xin |
| author_facet | QIU Ying-xiong FU Cheng-xin |
| author_sort | QIU Ying-xiong |
| collection | DOAJ |
| description | With age adding, the area ratio of phloem and xylem decreases in Ch. smyrnioides. Differentiation of vascular cambium is active in 34 years root. The vascular bundle of stem is the type of double phloem. The anther is tetrasporangiate. Simultaneous cytokinesis in the microspore mother cell follows meriosis. The species is suspended placentation, anatropous ovule and nuclear endosporm. The embryo of Ch. smyrnioides is very small in mature seeds. They could successfully germination after 4-6 months of afterripening. The incoordination between the afterripening of seed and the raining season of East China may be one of the endangered reasons in Ch. smyrnioides. |
| format | Article |
| id | doaj-art-80d31c59d35b4bebbe9b3b781c9165b0 |
| institution | Matheson Library |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2000-07-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-80d31c59d35b4bebbe9b3b781c9165b02025-08-01T05:46:12ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552000-07-012642743210.3785/1008-9209.2000.04.042710089209Studies on comparative anatomy of endangered plant Changium smyrnioides WolffQIU Ying-xiongFU Cheng-xinWith age adding, the area ratio of phloem and xylem decreases in Ch. smyrnioides. Differentiation of vascular cambium is active in 34 years root. The vascular bundle of stem is the type of double phloem. The anther is tetrasporangiate. Simultaneous cytokinesis in the microspore mother cell follows meriosis. The species is suspended placentation, anatropous ovule and nuclear endosporm. The embryo of Ch. smyrnioides is very small in mature seeds. They could successfully germination after 4-6 months of afterripening. The incoordination between the afterripening of seed and the raining season of East China may be one of the endangered reasons in Ch. smyrnioides.https://www.academax.com/doi/10.3785/1008-9209.2000.04.0427<italic>Changium smyrnioides</italic>comparative anatomystudies |
| spellingShingle | QIU Ying-xiong FU Cheng-xin Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff 浙江大学学报. 农业与生命科学版 <italic>Changium smyrnioides</italic> comparative anatomy studies |
| title | Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff |
| title_full | Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff |
| title_fullStr | Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff |
| title_full_unstemmed | Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff |
| title_short | Studies on comparative anatomy of endangered plant Changium smyrnioides Wolff |
| title_sort | studies on comparative anatomy of endangered plant changium smyrnioides wolff |
| topic | <italic>Changium smyrnioides</italic> comparative anatomy studies |
| url | https://www.academax.com/doi/10.3785/1008-9209.2000.04.0427 |
| work_keys_str_mv | AT qiuyingxiong studiesoncomparativeanatomyofendangeredplantchangiumsmyrnioideswolff AT fuchengxin studiesoncomparativeanatomyofendangeredplantchangiumsmyrnioideswolff |