Early Forerunners of Man: A Morphological Study of the Evolutionary Origin of the Primates

JAMA ◽  
1935 ◽  
Vol 104 (9) ◽  
pp. 775
1934 ◽  
Vol 38 (4) ◽  
pp. 604
Author(s):  
George Grant MacCurdy ◽  
W. E. Le Gros Clark

Author(s):  
Susan B.G. Debaene ◽  
John S. Gardner ◽  
Phil S. Allen

The coleorhiza is a nonvascular sheath that encloses the embryonic radicle in Poaceae, and is generally the first tissue to emerge during germination. Delicate hairlike extensions develop from some coleorhiza cells prior to radicle emergence. Similar to root hairs, coleorhiza hairs are extremely sensitive to desiccation and are damaged by exposure to negative water potentials. The coleorhiza of Lolium perenne is somewhat spherical when first visible, after which a knob forms at a right angle to the caryopsis due to inner pressure from the elongating radicle. This knob increases in length until the radicle finally punctures the coleorhiza. Standard fixation procedures cause severe desiccation of coleorhiza cells and hairs, making morphological study of the coleorhiza difficult. This study was conducted to determine a more successful process for coleorhiza preservation.


1976 ◽  
Vol 14 (2) ◽  
pp. 123 ◽  
Author(s):  
Kye Heon Jeong ◽  
Han Jong Rim ◽  
He Young Yang ◽  
Woo Kap Kim ◽  
Chang Whan Kim

1967 ◽  
Vol 75 (5) ◽  
pp. 207-223 ◽  
Author(s):  
Takuro SAKAI ◽  
Izumi SASAKI ◽  
Hajime HANAMURA
Keyword(s):  

2011 ◽  
Vol 4 (2) ◽  
pp. 34-37
Author(s):  
Dr. Qudusia sultana ◽  
◽  
Dr. M.H Shariff Dr. M.H Shariff ◽  
Dr. Meera Jacob ◽  
Dr.Chitra P Rao ◽  
...  

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