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Atlas of Sexual Reproduction in Flowering Plants by Prof. Dr. Mauro Cresti, Dr. Stephen Blackmore, Prof. Dr.

By Prof. Dr. Mauro Cresti, Dr. Stephen Blackmore, Prof. Dr. Jacobus L. van Went (auth.)

Comprising approximately 100 plates this atlas files and describes the methods about the sexual copy in better crops. it truly is dividedinto 3 elements: - Anther improvement - Pistil improvement - Progamic part and Fertilization. The scanning, transmission electron and lightweight micrographs are all of immaculate caliber and - for the viewer's orientation - virtually each one plate is complemented through a scheme displaying a bigger region of the plant indicating the positioning of the part. including instructive texts, the customarily amazing pictures offer a worthwhile advent into plant reproductive phone constructions for researchers and complicated scholars of genetics, plantbreeding and phone biology.

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Note that the remaining cell plates connecting the other growing wall parts are still incomplete (arrows). x 7,100. (Plate 7A reproduced by permission from Blackmore S, Barnes S H (1988) Ann Bot 62: 605-614; Plate 7B reproduced by permission from Van Went J, Cresti M (1988b) Sex Plant Reprod 1: 228-233). ,....... Plate SA. Microspore mother cell of Aloe ciliaris Haw. after completion of cytokinesis. Cytokinesis results in the complete isolation of the four products of meiosis, the microspores. The microspores are not interconnected by plasmodesmata, and each of them develops into an individual gametophyte, the pollen grain.

The tapetal cytoplasm near the microspores contains mainly ribosomes, vesiculate endoplasmic reticulum and microtubules (arrows). The microtubules are aligned parallel to the exine surface. x 20,000. (Plates 14A,B courtesy E Pacini, Siena). 44 45 ANTHER DEVELOPMENT - Microspore-tapetum relationship ---Tapetum Plate 15. , close to a young microspore. The tapetal cell has an amoeboid character and is closely appressed to the exine of the microspores. One of the exine baculae can be seen deeply inside the tapetum cell, without disrupting the plasma membrane (arrows).

Note the accumulation of spherosomes/lipid bodies in the vegetative cell at the surface of the generative cell. x 33,500. Plate 20B. Enlarged portion of plate 20A, showing the interface between the generative cell and the vegetative cell of Euphorbia dulcis L.. During the detachment of the generative cell from the intine, the morphology of the wall in between the two cells changes. The two plasma membranes become very straight and positioned very closely to each other. The generative cell develops a cytoskeleton of which the micro tubules near the plasma membrane are very evident (arrows).

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