Linked Life Data

16416966

Source:http://linkedlifedata.com/resource/pubmed/id/16416966

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2006-1-18
pubmed:abstractText
The anther of Magnolia biloba is tetrasporangiate with glandular tapetum, which consists of one or two layers of cells. Cytokinesis during meiosis of its microspore mother cell is modified simultaneous type, and the microspore tetrads are isobilateral. Mature pollen grains are two-celled. Tetrad cells and microspores are irregularly shaped during the microsporogenesis. There were two ovules on the ventral surface of unicarpellate ovary wall. Ovules were anatropous, bitegmnous and crassinucellar. Archesporial cell was one cell and differentiated from cell in the second layer beneath epidermis. The development of the embryo sac conformed to the polygonum type. The embryological characteristics of Magnolia biloba are very similar to those of other species in Magnoliaceae. The megasporogenesis and microsporogenesis and the development of their female and male gametophyte are partially abnormal. Abnormal phenomena in the process of reproduction of Magnolia biloba causing this species to be endangered was discussed.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0001-5334
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
490-500
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
[Studies on the megasporogenesis and microsporogenesis and the development of their female and male gametophyte in Magnolia biloba].
pubmed:affiliation
School of Life Sciences, Hangzhou Normal College, Hangzhou 310036. wang_208@163.com
pubmed:publicationType
Journal Article, English Abstract