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561.
A Lumsden 《Philosophical transactions of the Royal Society of London. Series B, Biological sciences》1991,331(1261):281-286
During development of the chick embryo, early neuronal differentiation and axonogenesis in the hindbrain follow a segmented pattern in register with the segmented morphology of this region. Cell marking experiments have shown that the segments, or rhombomeres, are lineage-restriction units each constructing a defined piece of the hindbrain. This raises the interesting possibility that, as in the developing fly, metamerism is used to generate level-specific anatomical structures with great and reliable precision. In the hindbrain, as for many invertebrates, lineage ancestry may be important in the determination of cell fate. The segmentation seen in this body region could therefore reflect a similar condition once present in the ancestor common to vertebrates and invertebrates. 相似文献
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J Eyal C P Baker J D Reeder W E Devane R D Lumsden 《Journal of industrial microbiology & biotechnology》1997,19(3):163-168
SoilGard™ is a commercial microbial fungicide containing chlamydospores of Gliocladium virens strain GL-21. The formulation is registrated with the US Environmental Protection Agency (EPA) by Thermo Trilogy Corporation,
Columbia, Maryland. The biocontrol agent was developed in cooperation with the Biocontrol of Plant Diseases Laboratory (BPDL),
US Department of Agriculture (USDA), and is targeted for controlling damping-off diseases caused by Rhizoctonia solani and Pythium ultimum in vegetable and ornamental greenhouses. Formulation requires production of chlamydospore biomass in liquid fermentation
which was carried out in 20-L, 1500-L and 4000-L submerged liquid fermentors. Key economic process parameters, fermentation
kinetics and the reproducibility of the fermentation at this scale were evaluated and analyzed. Starter culture quality and
maturity of chlamydospores were identified as key issues for obtaining successful fermentations.
Received 07 February 1997/ Accepted in revised form 27 May 1997 相似文献