منابع مشابه
Evo-Devo of amniote integuments and appendages.
Integuments form the boundary between an organism and the environment. The evolution of novel developmental mechanisms in integuments and appendages allows animals to live in diverse ecological environments. Here we focus on amniotes. The major achievement for reptile skin is an adaptation to the land with the formation of a successful barrier. The stratum corneum enables this barrier to preven...
متن کاملSHORT INTEGUMENTS 2 promotes growth during Arabidopsis reproductive development.
The short integuments 2 (sin2) mutation arrests cell division during integument development of the Arabidopsis ovule and also has subtle pleiotropic effects on both sepal and pistil morphology. Genetic interactions between sin2 and other ovule mutations show that cell division, directionality of growth, and cell expansion represent at least partially independent processes during integument deve...
متن کاملUltrastructure of superficial mycosidic integuments of Mycobacterium sp.
Cells from pellicle growth of Mycobacterium sp. NQ are enveloped in a mycoside layer which extends outward as long filaments, 5 nm in diameter. Underneath this outer mycosidic casement, ramified ropelike structure, embedded in a dense matrix, overlay the rigid peptidoglycan of the cell wall.
متن کاملTissue reactions of abdominal integuments to surgical sutures in sonography
UNLABELLED Classical abdominal surgeries usually require long incisions of the abdominal integuments followed by tight closure with adequate suturing material. Nonabsorbable sutures may cause various reactions, including granuloma reactions, both sterile and inflammatory. THE AIM OF THE STUDY The aim of the study was to analyze prospective ultrasound examinations of the abdominal integuments ...
متن کاملArabidopsis SHORT INTEGUMENTS 2 is a mitochondrial DAR GTPase.
The Arabidopsis short integuments 2-1 (sin2-1) mutant produces ovules with short integuments due to early cessation of cell division in these structures. SIN2 was isolated and encodes a putative GTPase sharing features found in the novel DAR GTPase family. DAR proteins share a signature DAR motif and a unique arrangement of the four conserved GTPase G motifs. We found that DAR GTPases are prese...
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ژورنال
عنوان ژورنال: Nature
سال: 1977
ISSN: 0028-0836,1476-4687
DOI: 10.1038/265088a0