Immunocytochemical localization of DJ-1 in human male reproductive tissue

2003 ◽  
Vol 66 (4) ◽  
pp. 391-397 ◽  
Author(s):  
Kaoru Yoshida ◽  
Yoko Sato ◽  
Miki Yoshiike ◽  
Shiari Nozawa ◽  
Hiroyoshi Ariga ◽  
...  
Weed Science ◽  
2002 ◽  
Vol 50 (4) ◽  
pp. 438-447 ◽  
Author(s):  
Wendy A. Pline ◽  
Ryan Viator ◽  
John W. Wilcut ◽  
Keith L. Edmisten ◽  
Judith Thomas ◽  
...  

1932 ◽  
Vol 51 ◽  
pp. 97-103 ◽  
Author(s):  
A. D. Peacock ◽  
R. A. R. Gresson

Summary1. From the above it is therefore justifiable to conclude that Sirex cyaneus is typically hymenopterous, in that:(a) the ripe male reproductive tissue is haploid (8 chromosomes), while the female oogonia are diploid (16 chromosomes);(b) the abortive character of the first spermatocyte division is evidence that chromosome reduction does not occur during the maturation of the male gametes.2. Support is thus afforded to the hypothesis commonly held, that the male hymenopteron is a haploid organism and is the product of an unfertilised (haploid) egg, while the female is a diploid organism arising from a fertilised egg.3. Feulgen's “Nuclealreaktion” holds for the chromatin involved in the abortive division and for the chromosomes of the second spermatocyte; but the large chromatoid body and cytoplasmic granules seen in these same stages by the iron hæmatoxylin technique did not give the chromatin reaction. The nature of these chromatoid bodies remains to be discovered.


2000 ◽  
Vol 35 (2) ◽  
pp. 187-195 ◽  
Author(s):  
Livy Williams ◽  
N. Philip Tugwell

Microscopic features of small cotton floral buds abscised due to Lygus lineolaris (Palisot de Beauvois) feeding and non-insect factors were identified and contrasted with healthy buds. Feeding damage appeared to be most common on staminal columns, developing anthers, and corollas. These tissues exhibited gross enlargement and varying degrees of cellular degradation. Fragmented cell walls were thinner and stained lighter than those that were intact. Desiccation of buds abscised due to Lygus feeding was irregular. Tissues of buds abscised due to non-insect factors stained uniformly and all cells were intact. Uniform basipetal desiccation throughout the bud occurred in non-insect damaged buds, especially in anthers, staminal columns, and carpels. Tissues and cells of healthy buds stained uniformly and consistently and were without structural abnormalities. The biochemical composition of male reproductive tissue of cotton floral buds appears to play an important role in the nutritional physiology of L. lineolaris.


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