נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Comparative anatomy of colonization of cotton hypocotyls and roots by virulent and hypovirulent isolates of Rhizoctonia solani
Year:
1989
Source of publication :
Canadian Journal of Botany
Authors :
Shomer, Ilan
;
.
Volume :
67
Co-Authors:

B. Sneh, M. Ichielevich-Auster

Facilitators :
From page:
2142
To page:
2149
(
Total pages:
8
)
Abstract:

The hypovirulent (HV) isolate (No. 521) densely colonized the outer surface of the hypocotyls and roots of radish and cotton seedlings but did not penetrate into the cortical parenchyma, whereas the virulent (V) isolate (No. 82) penetrated the root and hypocotyl tissues (except for the xylem vessels) to the center of the pith parenchyma. The HV isolate did not cause any degradation of the cell wall material except for the cuticular layer that had disappeared in the regions of close contact between the hyphae and the epidermal outer surface. During the prepenetration stages of the V isolate, the cell walls of the seedlings underwent a significant, visible degradation. The cuticle between the hyphae and the epidermis was detached and degraded. The HV isolate seems to densely cover the outer surface of the seedlings, and it may occupy the possible infection sites, rendering recognition and occupation of such sites unavailable for the virulent pathogen.

Note:
Related Files :
COTTON
Gossypium
Rhizoctonia
Rhizoctonia solani
Show More
Related Content
More details
DOI :
https://doi.org/10.1139/b89-271
Article number:
0
Affiliations:
Database:
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
56053
Last updated date:
02/03/2022 17:27
Creation date:
24/08/2021 08:33
You may also be interested in
Scientific Publication
Comparative anatomy of colonization of cotton hypocotyls and roots by virulent and hypovirulent isolates of Rhizoctonia solani
67

B. Sneh, M. Ichielevich-Auster

Comparative anatomy of colonization of cotton hypocotyls and roots by virulent and hypovirulent isolates of Rhizoctonia solani

The hypovirulent (HV) isolate (No. 521) densely colonized the outer surface of the hypocotyls and roots of radish and cotton seedlings but did not penetrate into the cortical parenchyma, whereas the virulent (V) isolate (No. 82) penetrated the root and hypocotyl tissues (except for the xylem vessels) to the center of the pith parenchyma. The HV isolate did not cause any degradation of the cell wall material except for the cuticular layer that had disappeared in the regions of close contact between the hyphae and the epidermal outer surface. During the prepenetration stages of the V isolate, the cell walls of the seedlings underwent a significant, visible degradation. The cuticle between the hyphae and the epidermis was detached and degraded. The HV isolate seems to densely cover the outer surface of the seedlings, and it may occupy the possible infection sites, rendering recognition and occupation of such sites unavailable for the virulent pathogen.

Scientific Publication
You may also be interested in