نتایج جستجو برای: echinops ilicifolius
تعداد نتایج: 1236 فیلتر نتایج به سال:
Morphology, habitat, shoot density and standing crop (above below ground biomass) of salt marsh Porteresia coarctata at Bakkhali estuary, Cox’s Bazar were investigated from January 2006 to June 2006. Permanent plots 50 m x exposed (station I) protected II) areas selected. P. was found growing as monospecific stand four-species association with seagrass Halophila beccarii, patches mangroves (Avi...
Phytochemical investigation of the flowering aerial parts of Echinops galalensis (Asteraceae) led to the isolation of a new taraxasteryl triterpene, 3b-acetoxy-taraxast-12, 20(30)-diene-11a-21a-diol (1), together with nine known metabolites, a-amyrin (2), b-sitosterol (3), erythrodiol (4), lup-20(29)-ene1,3-diol (5), 1,5-dicaffeoylquinic acid (6), 3,5-dicaffeoylquinic acid (7), 3,4-dicaffeoylqu...
Sonic hedgehog, a secreted signalling molecule known to play a role in the patterning of the central nervous system and the limb in vertebrates, also controls differentiation of the somites.
Signaling molecules such as Activin, Sonic hedgehog, Nodal, Lefty, and Vg1 have been found to be involved in determination of left-right (L-R) asymmetry in the chick, mouse, or frog. However, a common signaling pathway has not yet been identified in vertebrates. We report that Pitx2, a bicoid-type homeobox gene expressed asymmetrically in the left lateral plate mesoderm, may be involved in dete...
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