Formation of a unique structure during microsporogenesis in Tinantia anomala (Commelinaceae) anthers
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چکیده
منابع مشابه
simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
Autoradiography of soluble [2-14-C]thymidine derivatives during meiosis and microsporogenesis in Lilium anthers.
341 CLARK, A. W. The fine structure of the eye of the leech, Ilelobdella stagnalis 349 EAKIN, R. M., WESTFALL, JANE A. and DENNIS, M. J. Fine structure of the eye of a nudibranch mollusc, Hermissenda crassicornis 359 CHAPMAN, J. A., ELVES, M. W. and GOUGII, J. An electron-microscope study of the in vitro transformation of human leucocytes I. Transformation of lymphocytes to blastoid cells in th...
متن کاملAutoradiography of Soluble [2-"c]thymidine Derivatives during Meiosis and Microsporogenesis in Lilium Anthers
A dry autoradiographic method suitable for locating soluble tracers has been used to follow the fate of [2-C]thymidine supplied to detached buds and inflorescences of Lilittm henryi and a related cultivar. During the interval from the archesporial phase until pachytene, the derivative (or derivatives) reaching the anther loculi moved freely into the meiocytes. Subsequently, the tracer was exclu...
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the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
15 صفحه اولthe role of thematic structure in comprehending spoken language
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
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ژورنال
عنوان ژورنال: Protoplasma
سال: 2016
ISSN: 0033-183X,1615-6102
DOI: 10.1007/s00709-016-0990-y