نتایج جستجو برای: bowellia carteri
تعداد نتایج: 287 فیلتر نتایج به سال:
The green flagellate J’olvox is a simple muhicellular organism having only two kinds of cells, somatic and reproductive. The cells are arranged on the periphery of a spheroid. Asexual individu~s of I’olvox carten’ are composed of 2000-4000 somatic cells and about 16 large reproductive cells (gonidia), located in the posterior region of the spheroid. Mature asexual spheroids show a very regular ...
The pyrrole-2-aminoimidazole (P-2-AI) alkaloids have been exclusively reported to be isolated from marine sponges. The P-2-AIs are well known for their dense structures with a very low carbon/nitrogen (mainly nxC11N5) ratio. [1] Their intriguing dimeric polycyclic ring systems that were isolated during the last years revealed their elaborate structures and molecular diversity which arise from a...
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