Pit Connections and Translocation in Red Algae
نویسندگان
چکیده
منابع مشابه
Dimorphic Pit Connections in the Red Alga Pseudogloiophloea
Pit connections are unusual structures found almost exclusively in the septa of "higher" red algae (Florideophycidae) . Their structure (Myers et al ., 1959; Bouck, 1962; Peyriere, 1963 ; Bishoff, 1965 ; Bisalputra et al ., 1967) and formation (Ramus, 1969 b) have been described with the aid of the electron microscope . Pit connections, at maturity, consist of two structural components : a circ...
متن کاملRed algae delays chronological ageing
During the chronological ageing process epidermal skin stem cells become less effective, meaning that the renewing and repairing activity of the epidermis is reduced. Moreover, fewer elastic fibres are synthesised, thereby inducing a progressive loss of skin elasticity. The standardised, COSMOS certified Cyanidium caldarium red algae extract, unique in its capability to produce gamma aminobutyr...
متن کاملThe chloroplast protein translocation complexes of Chlamydomonas reinhardtii: a bioinformatic comparison of Toc and Tic components in plants, green algae and red algae.
The recently completed genome of Chlamydomonas reinhardtii was surveyed for components of the chloroplast protein translocation complexes. Putative components were identified using reciprocal BlastP searches with the protein sequences of Arabidopsis thaliana as queries. As a comparison, we also surveyed the new genomes of the bryophyte Physcomitrella patens, two prasinophyte green algae (Ostreo...
متن کاملLight-induced Efficiency and Pigment Alterations in Red Algae
The low photosynthetic efficiency of chlorophyll in freshly collected red algae, can, in the case of Porphyra perforata, P. nereocystis, and Porphyridium cruentum, be increased by growing the algae for 10 days in red or blue light. Exposure to darkness or to green light maintains the algae in their originally low efficiency with respect to chlorophyll, while retaining the high efficiency of phy...
متن کاملStudies on Polyethers Produced by Red Algae
Two novel squalene-derived triterpenes, spirodehydrovenustatriol (3) and 14-keto-dehydrothyrsiferol (4) were isolated from the red alga Laurencia viridis, together with two new and unusual C(17) terpenoids, adejen A (5) and B (6). These truncated structures possess structural similarities with other known squalene metabolites and their biogenetic origin has been proposed on the basis of an oxid...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1980
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.209.4454.423