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Original Articles

Ultrastructural characteristics of the tapetum and microspore mother cells in Lycopersicum peruvianum during meiotic prophase

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Pages 121-128 | Published online: 08 Feb 2017
 

Summary

The meiotic prophase is an important stage in pollen development during which cytomictic channels and the callosic wall are formed; changes in the tapetum and microspore mother cells cytoplasm occur, the microspore mother cells become round whilst numerous radially arranged microtubules appear. The meaning of these findings, especially cytomictic channels and the formation of microtubules is discussed.

Résumé

La prophase méiotique est une importante étape du développement du pollen au cours de laquelle sont formés les canaux cytomictiques et la paroi callosique; le cytoplasme du tapis et les cellules-mères des microspores se modifient. Ces dernières s'arrondissent tandis que de nombreux microtubules deviennent visibles en position radiale. La signification de ces données, en particulier la formation des canaux cytomictiques et la fonction des microtubules, est discutée.

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