On the gemmules of some marine siliceous sponges
نویسندگان
چکیده
منابع مشابه
Antimicrobial Effects of Some Persian Gulf Marine Sponges
Background: We investigated in vitro antimicrobial activity of five marine sponge species collected from Kish Island in the Persian Gulf: Fascaplysinopsis reticulata, Callyspongia clavatus, Callyspongia siphonella, Niphates furcata, and Pseudosuberites clavatus against gram positive bacteria, gram negative bacteria, fungi and yeasts. Materials and Methods: Sponage extracts were prepared by two ...
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Marine sponges (Porifera) have attracted significant attention from various scientific disciplines. Remarkable traces, left by sponges in the fossil records have been studied by paleontologists and evolutionary biologists. As sponges produce various novel chemical molecules, they have been a goldmine to chemists and also found their way into biotechnological applications. Microbiologists became...
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The recent application of molecular microbial ecology tools to sponge-microbe associations has revealed a glimpse into the biodiversity of these microbial communities, that is considered just 'the tip of the iceberg'. This chapter provides an overview over these new findings with regard to identity, diversity and distribution patterns of sponge-associated microbial consortia. The sponges Aplysi...
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قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
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A systematic search for constituents of marine sponges has yielded over one hundred new compounds, most of them with unique structural features. A broad survey of the field is presented and certain topics, particularly those closely related to recent work done in our own laboratory on sesquiterpenoids, are discussed in more detail.
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ژورنال
عنوان ژورنال: Annals and Magazine of Natural History
سال: 1888
ISSN: 0374-5481
DOI: 10.1080/00222938809460770