Assessment of field resistance to blight (Phytophthora infestans) in potatoes

1976 ◽  
Vol 67 (2) ◽  
pp. 321-325 ◽  
Author(s):  
Jean F. Malcolmson
Keyword(s):  
Phytophthora Infestans ◽  
Field Resistance

Induction of a proteinase K inhibitor in a potato cultivar with a high degree of field resistance against Phytophthora infestans

2000 ◽  
Vol 109 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Mariana L. Feldman ◽  
Claudia R. Oliva ◽  
Claudia A. Casalongué ◽  
Gustavo R. Daleo
Keyword(s):  
Phytophthora Infestans ◽  
Potato Cultivar ◽  
Field Resistance ◽  
Proteinase K ◽  
High Degree

scholarly journals A Cysteine Protease Gene Is Expressed Early in Resistant Potato Interactions with Phytophthora infestans

1999 ◽  
Vol 12 (12) ◽  
pp. 1114-1119 ◽  
Author(s):  
Anna O. Avrova ◽  
Helen E. Stewart ◽  
Walter De Jong ◽  
Jacqueline Heilbronn ◽  
Gary D. Lyon ◽  
...  
Keyword(s):  
Phytophthora Infestans ◽  
Cysteine Protease ◽  
Early Stage ◽  
Cathepsin K ◽  
Field Resistance ◽  
Amino Acid Sequences ◽  
Ribonuclease Protection Assay ◽  
Post Inoculation ◽  
Protease Gene ◽  
Ribonuclease Protection

A potato cysteine protease (cyp) cDNA expressed at an early stage of an incompatible interaction with Phytophthora infestans was isolated. Both the nucleotide and deduced amino acid sequences are highly homologous to those of a tomato cysteine protease, CYP1. Striking protein similarity to all known cathepsins in animals, particularly cathepsin K, was also observed. However, unlike cathepsins, a granulin binding domain is located near the carboxyl terminus of the putative CYP protein. In animals, granulins bind to receptors in the plasma membrane and signal cell growth and division. A ribonuclease protection assay demonstrated that the cyp gene is tightly regulated and is induced 15 h post inoculation with P. infestans in potato leaves either with high field resistance or in which a resistance (R) gene is activated. We conclude that a common signaling pathway is activated in each form of resistance.

Field Resistance to Potato Blight (Phytophthora infestans)

Nature ◽  
1956 ◽  
Vol 177 (4513) ◽  
pp. 794-795 ◽  
Author(s):  
M. J. DESHMUKH ◽  
H. W. HOWARD
Keyword(s):  
Phytophthora Infestans ◽  
Field Resistance ◽  
Potato Blight

STUDIES ON FERTILITY AND LATE BLIGHT RESISTANCE IN SOLANUM BULBOCASTANUM DUN. IN MEXICO

1959 ◽  
Vol 37 (1) ◽  
pp. 41-49 ◽  
Author(s):  
K. M. Graham ◽  
J. S. Niederhauser ◽  
Leopoldo Servin
Keyword(s):  
Late Blight ◽  
Phytophthora Infestans ◽  
Late Blight Resistance ◽  
Field Resistance ◽  
Blight Resistance ◽  
Solanum Bulbocastanum ◽  
Mexican Isolate

Solanum balbocastanum Dun. was collected extensively throughout its range in Mexico and Guatemala. Experimental self- and cross-pollinations showed that the species is highly self-sterile and consists of cross-sterile and cross-fertile individuals. Self-sterility may be due to the presence of incompatibility factors or to triploidy. Authentic hybrids were produced between S. bulbocastanum and S. trifidum Correll, and between S. bulbocastanum and S. pinnatisectum Dun.After inoculation with race 1.2.3.4 of Phytophthora infestans three types of reaction were observed among 1148 seedlings of S. bulbocastanum: immunity with no perceptible lesions, resistance expressed by non-sporulating lesions of the hypersensitive type, and susceptibility indicated by large sporulating necrotic lesions. Seedlings resistant to an isolate of race 1.2.3.4 of Canadian origin did not always show the same level of resistance to a Mexican isolate of the same race. Varying degrees of field resistance were observed among seedling plants, while tuber-propagated plants were generally field immune. Solanum bulbocastanum is considered a mixture of resistant and susceptible genotypes.

Resistance of Potato to Stem Infection by Phytophthora infestans and a Comparison to Detached Leaflet and Field Resistance Assessments

2011 ◽  
Vol 88 (4) ◽  
pp. 367-373 ◽  
Author(s):  
Anna M. Michalska ◽  
Ewa Zimnoch-Guzowska ◽  
Sylwester Sobkowiak ◽  
Jarosław Plich
Keyword(s):  
Phytophthora Infestans ◽  
Field Resistance ◽  
Stem Infection
Sign in / Sign up

Export Citation Format

Share Document