نتایج جستجو برای: syngnathus abaster
تعداد نتایج: 134 فیلتر نتایج به سال:
Clustered mutations are copies of a mutant allele that enter a population's gene pool together due to replication from a premeiotic germline mutation and distribution to multiple successful gametes of an individual. Although the phenomenon has been studied in Drosophila and noted in a few other species, the topic has received scant attention despite claims of being of major importance to popula...
In pipefishes, males brood their offspring on their body or in a brood pouch. In 2 species of pipeflsh, Siphonostorna typhle and Nerophis ophidion, sexual dimorphism, dichromatism, and sex role reversal differed in degree between the species. N. ophidion females were larger than males, whereas in S. typhle sexes were equally large. Furthermore, N. ophidion females have pronounced sexual colouri...
Chlamydia are obligate intracellular bacteria and important pathogens of humans and animals. Chlamydia-related bacteria are also major fish pathogens, infecting epithelial cells of the gills and skin to cause the disease epitheliocystis. Given the wide distribution, ancient origins and spectacular diversity of bony fishes, this group offers a rich resource for the identification and isolation o...
The major histocompatibility complex (MHC)-mediated adaptive immune system is the hallmark of gnathostome immune defence. Recent work suggests that cod-like fishes (Gadidae) lack important components of the MHC class II mediated immunity. Here, we report a putative independent loss of functionality of this pathway in another species, the pipefish Syngnathus typhle, that belongs to a distantly r...
Two new peptides derived from seaweed pipefish Syngnathus schlegeli, SPP-1(QLGNLGV) and SPP-2 (SVMPVVA) were assessed for their ability to prevent hydrogen peroxide induced oxidative stress in human dermal fibroblasts (HDFs). Both peptides showed a significant hydroxyl radical scavenging activity when tested by ESR technique. And also the peptides effectively suppressed the hydrogen peroxide in...
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