Sporoderm development inNymphaea mexicana (Nymphaeaceae)

1997 ◽  
Vol 204 (1-2) ◽  
pp. 1-19 ◽  
Author(s):  
Nina I. Gabarayeva ◽  
Gamal El-Ghazaly
Keyword(s):  
Sporoderm Development

Sporoderm development in Acer tataricum (Aceraceae): an interpretation

PROTOPLASMA ◽  
2010 ◽  
Vol 247 (1-2) ◽  
pp. 65-81 ◽  
Author(s):  
Nina I. Gabarayeva ◽  
Valentina V. Grigorjeva ◽  
John R. Rowley
Keyword(s):  
Sporoderm Development

Sporoderm development in Trevesia burckii (Araliaceae). I. Tetrad period: Further evidence for the participation of self-assembly processes

2009 ◽  
Vol 156 (1-2) ◽  
pp. 211-232 ◽  
Author(s):  
Nina Gabarayeva ◽  
Valentina Grigorjeva ◽  
John R. Rowley ◽  
Alan R. Hemsley
Keyword(s):  
Self Assembly ◽  
Sporoderm Development

scholarly journals Sporoderm development inAsimina triloba(Annonaceae)

Grana ◽  
1992 ◽  
Vol 31 (3) ◽  
pp. 213-222 ◽  
Author(s):  
Nina I. Gabarayeva
Keyword(s):  
Sporoderm Development

Morphological and ultrastructural variations in Scliizjaea pectinata (Schizaeaceae: Pteridophyta)

Bothalia ◽  
1994 ◽  
Vol 24 (2) ◽  
pp. 203-210 ◽  
Author(s):  
B. M. Parkinson
Keyword(s):  
South Africa ◽  
Geographical Range ◽  
Spore Size ◽  
Sporoderm Development ◽  
Plasmodial Tapetum ◽  
Taxonomic Importance ◽  
Parietal Tapetum ◽  
Schizaea Pectinata

Schizaea pectinata (L.) Sw. was collected from the extreme ends of its geographical range in South Africa for a study of sporangial development, sporogenesis and tapetal organisation. Differences were noted in the gross morphology , in sporangium size, spore size and in the patterning of the outer exospore from the two sites. Coiled structures were associated with the development of the inner perispore in spores collected from the Transvaal, whereas dense, heterogeneous bodies were associated with the formation of this layer in spores from the Cape. Differences were also noted in the organisation of the tapetum. A cellular, parietal tapetum and a plasmodial tapetum were present in the Cape material when the spores had developed the sculptured outer exospore. In sporangia from the Transvaal, however, only a plasmodial tapetum was present at the same stage of sporoderm development. A detailed study of S. pectinata throughout its distribution is required to determine the taxonomic importance of these findings.

Sign in / Sign up

Export Citation Format

Share Document