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951.
Mitsuyoshi Yatagai Toshiya Sato Toshio Takahashi 《Biochemical Systematics and Ecology》1985,13(4):377-385
The components of the leaf oils from twelve species in the four genera (Thuja, Thujopsis, Juniperus and Chamaecyparis) of the Cupressaceae have been studied quantitatively. Some chemotaxonomical feature on the components are discussed. 相似文献
952.
953.
The Activin A-Dependent Proliferation of PCC3/A/1 Embryonal Carcinoma Cells in Serum-Free Medium 总被引:1,自引:1,他引:0
Tadao Atsumi Yoko Miwa Yuzuru Eto Hiromu Sugino Moriaki Kusakabe Hiroshi Kitani Yoji Ikawa 《Development, growth & differentiation》1993,35(1):81-87
Examination of the growth requirements of murine embryonal carcinoma cells (EC cells) or embryonic stem cells (ES cells) in serum-free medium revealed that PCC3 EC cells required activin A to grow and/or survive in such medium. In the absence of activin A, PCC3 cells began to disintegrate within 3 days under any serum-free conditions examined. P19 and AT805 EC cells grew even in serum-free medium without activin A but their growth rates were slightly facilitated by its addition. F9 EC cells also grew in the medium without activin A and its addition somewhat inhibited their growth rate. Three independently isolated ES cell lines and feeder-dependent PSA-1 EC cells also grew in serum-free medium without activin A if leukemia inhibitory factor (LIF) was supplemented. The addition of activin A had little effect on their growth rates. These findings suggest that PCC3 EC cells are a sort of nutritional mutant requiring activin A, thus making them useful in stidies on the growth regulatory mechanisms of EC/ES cells and/or the action of activin on EC/ES cells. 相似文献
954.
Masaki Inagaki Yoichiro Matsuoka Kunio Tsujimura Shoji Ando Toshiya Tokui Toshitada Takahashi Naoyuki Inagaki 《BioEssays : news and reviews in molecular, cellular and developmental biology》1996,18(6):481-487
Site-specific phosphorylation of intermediate filament (IF) proteins on serine and threonine residues leads to alteration of the filament structure, in vitro and in vivo. Protein kinases involved in cell signaling and those activated in mitosis dynamically control spatial and temporal organization of intracellular IF phosphorylation. Thus, IF phosphorylation appears to be one of the most predominant strategies in coordinating intracellular organization of the IF network. 相似文献
955.