نتایج جستجو برای: holothuria
تعداد نتایج: 636 فیلتر نتایج به سال:
-1. Paramyosins isolated from nematode Caenorhabditis elegans, clam Meretrix meretrix and Mercenaria mercenaria, scallop Patinopecten yessoensis, abalone Notohaliotis discus, lobster Homarus vulgaris and sea cucumber Holothuria leucospilata were examined for phosphorylation rate and immunological reactivity against anti-Meretrix ~t-paramyosin antiserum. 2. A high phosphorylation was only observ...
Procedures for impact assessment, including “beyond-BACI” (before–after control–impact) and proportional differences (ratios between impact and control treatments) were used to test population replenishment of marine invertebrates at a marine conservation area (MCA) and three fished (control) areas in the Solomon Islands of the southwestern tropical Pacific. Within shallow reef terrace habitat,...
Two new triterpene glycosides, scabraside A (1) and B (2), and a structurally known compound (3), were isolated from the sea cucumber Holothuria scabra (Holothuriidae) collected from the South China Sea. Structure of these compounds was elucidated by spectroscopic and chemical methods. The glycosides 1 and 2 exhibit the same common structural features, i. e., the presence of 12- and 17-hydroxy ...
خیارهای دریایی متعلق به شاخه ی خارپوستان، کلاس holothuroidea هستند که گروه بزرگ و متنوعی از جانوران دریایی با حدود 1400 گونه در جهان را شامل می شوند. خیارهای دریایی از چندین منظر دارای اهمیت می باشند، از جمله: نقش اکولوژیکی آنها بدلیل تغییر در ترکیب کف دریا، اهمیت شیلاتی و آّبزی پروری آنها بدلیل ارزش خوراکی و تغذیه ای، اهمیت پزشکی-داروئی آنها بدلیل حضور ترکیباتی با اثر درمانی ضد باکتریایی، ضد قا...
conclusions our results suggest that h. parva and h. oculata may be promising therapeutic candidates for the treatment of hcc, following further confirmatory in vivo experiments and clinical trials. results our results showed that h. parva methanolic extracts (250, 500, and 1000 µg/ml) and h. oculata methanolic extracts (200, 400, and 800 µg/ml) increased reactive oxygen species (ros) formation...
باتوجه به اهمیت خیارهای دریایی و ناشناخته ماندن آنها در کشور ما، هرگونه مطالعه در این باره می تواند ارزشمند باشد. لذا این تحقیق در زمینه بیولوژی تولید مثل و بررسی غدد جنسی از نظر ماکروسکوپی و میکروسکوپی در گونه holothuria leucospilota انجام شد. در این مطالعه، نمونه برداری از خیار دریایی گونه holothuria leucospilota، در یک دوره یک ساله به صورت ماهیانه، در منطقه بستانه هرمزگان، در خلیج فارس، صورت...
The understanding of the distribution and population structure various species in marine environment is very helpful to effectual resource management conservation. This study aimed assess ecological factors relating sea cucumber populations on rocky shores Persian Gulf. Population two were investigated along 6 intertidal sites, including Deylam, Bushehr, Dayer, Nayband, Bostaneh, Lengeh Bushehr...
Immunostimulant is a substance that can stimulate the immune system against pathogenic microbes. Natural products produced by sea cucumbers have potential to be developed as immunostimulants. This study was aimed evaluate imunostimulatory activity of Holothuria atra extract using phagocytocyte assay macrophage cells and differentiation leukocyte in rats. The samples H. were taken from Halmahera...
The sea cucumber Holothuria scabra is an endangered species. In this study, nine new polymorphic microsatellite loci were developed and tested in 30 individuals. The number of alleles ranged from 2 to 5, and the observed and expected heterozygosities ranged from 0.1200 to 0.7391 and from 0.2408 to 0.5983, respectively. No loci significantly deviated from the Hardy-Weinberg equilibrium af-ter a ...
Marine animals are among the most important sources of natural products with biological activities because of their secondary metabolites. Many compounds were extracted, purified, identified and studied for their antioxidant, cytotoxic, anti-inflammatory and antibacterial effects from sea cucumber However, very few investigations are available on Persian Gulf sea cucumbers. The antioxidant act...
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