scholarly journals Phytophthora Rot of Strawberry Caused by Phytophthora nicotianae var. parasitica in Shizuoka

1980 ◽  
Vol 46 (2) ◽  
pp. 169-178 ◽  
Author(s):  
Takahito SUZUI ◽  
Tokio MAKINO ◽  
Akira OGOSHI
Keyword(s):  
Phytophthora Nicotianae ◽  
Phytophthora Rot

scholarly journals Phytophthora Rot on Luffa cylindrica Caused by Phytophthora nicotianae

2006 ◽  
Vol 22 (3) ◽  
pp. 211-214 ◽  
Author(s):  
Jin-Hyeuk Kwon ◽  
Hyeong-Jin Jee
Keyword(s):  
Phytophthora Nicotianae ◽  
Luffa Cylindrica ◽  
Phytophthora Rot

scholarly journals Phytophthora Rot on Sword Bean Caused by Phytophthora nicotianae

2004 ◽  
Vol 20 (4) ◽  
pp. 235-239
Author(s):  
Hyeong-Jin Jee ◽  
Shun-Shan Shen ◽  
Chang-Seuk Park ◽  
Jin-Hyeuk Kwon
Keyword(s):  
Phytophthora Nicotianae ◽  
Phytophthora Rot

scholarly journals Phytophthora Rot of Broad Bean(Vicia faba) Caused by Phytophthora nicotianae in Korea

2007 ◽  
Vol 23 (1) ◽  
pp. 31-33
Author(s):  
Jin-Hyeuk Kwon ◽  
Hyeong-Jin Jee ◽  
Shun-Shan Shen ◽  
Yun-Seok Chae
Keyword(s):  
Vicia Faba ◽  
Broad Bean ◽  
Phytophthora Nicotianae ◽  
Phytophthora Rot

Recurrent Selection for Tolerance to Phytophthora Rot in Soybean 1

Crop Science ◽  
1984 ◽  
Vol 24 (3) ◽  
pp. 495-497 ◽  
Author(s):  
A. K. Walker ◽  
A. F. Schmitthenner
Keyword(s):  
Recurrent Selection ◽  
Selection For ◽  
Phytophthora Rot

Evidence of Pathogen Specificity in Tolerance of Soybean Cultivars to Phytophthora Rot

Crop Science ◽  
1988 ◽  
Vol 28 (4) ◽  
pp. 714-715 ◽  
Author(s):  
P. R. Thomison ◽  
C. A. Thomas ◽  
W. J. Kenworthy ◽  
M. S. McIntosh
Keyword(s):  
Soybean Cultivars ◽  
Phytophthora Rot

scholarly journals Protection of Citrus Rootstocks Against Phytophthora spp. with a Hypovirulent Isolate of Phytophthora nicotianae

2007 ◽  
Vol 97 (8) ◽  
pp. 958-963 ◽  
Author(s):  
G. C. Colburn ◽  
J. H. Graham
Keyword(s):  
Poncirus Trifoliata ◽  
Phytophthora Nicotianae ◽  
Root Weight ◽  
Post Inoculation ◽  
Phytophthora Root Rot ◽  
Phytophthora Spp ◽  
Naturally Occurring ◽  
Fibrous Roots ◽  
Cleopatra Mandarin ◽  
Swingle Citrumelo

Phytophthora root rot of citrus in Florida is caused by Phytophthora nicotianae and P. palmivora. A naturally occurring isolate of P. nicotianae (Pn117) was characterized as hypovirulent on citrus roots. Pn117 infected and colonized fibrous roots, but caused significantly less disease than the virulent isolates P. nicotianae Pn198 and P. palmivora Pp99. Coincident inoculation of rootstock seedlings of Cleopatra mandarin (Citrus reticulata) or Swingle citrumelo (C. paradisi × Poncirus trifoliata) with the hypovirulent Pn117 and the virulent isolates Pn198 and Pp99 did not reduce the severity of disease caused by the virulent Phytophthora spp. When either rootstock was inoculated with the hypovirulent Pn117 for 3 days prior to inoculation with virulent isolates, preinoculated seedlings had significantly less disease and greater root weight compared with seedlings inoculated with the virulent isolates alone. Recovery of the different colony types of Phytophthora spp. from roots of sweet orange (C. sinensis) or Swingle citrumelo was evaluated on semiselective medium after sequential inoculations with the hypovirulent Pn117 and virulent Pp99. Pn117 was isolated from roots at the same level as the Pp99 at 3 days post inoculation. Preinoculation of Pn117 for 3 days followed by inoculation with Pp99 resulted in greater recovery of the hypovirulent isolate and lower recovery of the virulent compared with coincident inoculation.

scholarly journals RNAseq Reveals Differential Gene Expression Contributing to Phytophthora nicotianae Adaptation to Partial Resistance in Tobacco

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 656
Author(s):  
Jing Jin ◽  
Rui Shi ◽  
Ramsey Steven Lewis ◽  
Howard David Shew
Keyword(s):  
Partial Resistance ◽  
Molecular Mechanisms ◽  
Biological Activities ◽  
Effective Means ◽  
Phytophthora Nicotianae ◽  
Economic Losses ◽  
Black Shank ◽  
Differential Gene ◽  
Go Terms

Phytophthora nicotianae is a devastating oomycete plant pathogen with a wide host range. On tobacco, it causes black shank, a disease that can result in severe economic losses. Deployment of host resistance is one of the most effective means of controlling tobacco black shank, but adaptation to complete and partial resistance by P. nicotianae can limit the long-term effectiveness of the resistance. The molecular basis of adaptation to partial resistance is largely unknown. RNAseq was performed on two isolates of P. nicotianae (adapted to either the susceptible tobacco genotype Hicks or the partially resistant genotype K 326 Wz/Wz) to identify differentially expressed genes (DEGs) during their pathogenic interactions with K 326 Wz/Wz and Hicks. Approximately 69% of the up-regulated DEGs were associated with pathogenicity in the K 326 Wz/Wz-adapted isolate when sampled following infection of its adapted host K 326 Wz/Wz. Thirty-one percent of the up-regulated DEGs were associated with pathogenicity in the Hicks-adapted isolate on K 326 Wz/Wz. A broad spectrum of over-represented gene ontology (GO) terms were assigned to down-regulated genes in the Hicks-adapted isolate. In the host, a series of GO terms involved in nuclear biosynthesis processes were assigned to the down-regulated genes in K 326 Wz/Wz inoculated with K 326 Wz/Wz-adapted isolate. This study enhances our understanding of the molecular mechanisms of P. nicotianae adaptation to partial resistance in tobacco by elucidating how the pathogen recruits pathogenicity-associated genes that impact host biological activities.

Sign in / Sign up

Export Citation Format

Share Document