The Distribution of Carbohydrates in Cysts of Heterodera Rostochiensis

Nematologica ◽  
1976 ◽  
Vol 22 (2) ◽  
pp. 190-195 ◽  
Author(s):  
A.J. Clarke ◽  
Judy Hennessy
Keyword(s):  
Heterodera Rostochiensis

A Rapid Method for Estimating the Density of White Cysts of Heterodera rostochiensis on Potato Roots

Nature ◽  
1951 ◽  
Vol 167 (4248) ◽  
pp. 534-534 ◽  
Author(s):  
D. W. FENWICK ◽  
ELIZABETH REID
Keyword(s):  
Rapid Method ◽  
Heterodera Rostochiensis

A Study of Host-Parasite Relationships. The Potatoroot Eelworm (Heterodera rostochiensis) in Black nightshade (Solanum nigrum) and Tomato

1953 ◽  
Vol 27 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
C. C. Doncaster
Keyword(s):  
Body Wall ◽  
Solanum Nigrum ◽  
The Body ◽  
Black Nightshade ◽  
Tomato Roots ◽  
Heterodera Rostochiensis ◽  
Food Reserves ◽  
Host Parasite

Larvae of Heterodera rostochiensis have penetrated S. nigrum, quickly caused necrosis in the invaded roots and usually themselves suffered degeneration, which it is believed has led to their death. In these cases the region of the intestine apparently becomes devoid of food reserves and the subcuticular layers of the body wall degenerate into irregular strands of tissue. Only of the order of 0.5 per cent, completed the second moult in eight weeks, while the same stage was reached in tomatoes in a little over two weeks. Many larvae apparently do not develop at all. Tomato roots react to invasion by becoming swollen, and necrosis is less in evidence than in black nightshade.

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