scholarly journals The Induced Molting of 4th-Stage Larvae of Pin Nematode, Paratylenchus aciculus BROWN (Nematoda : Paratylenchidae), by Root Exudate of Host Plant : Ecological Significanse of Dormancy in Plant Parasitic Nematodes. III.

1975 ◽  
Vol 10 (4) ◽  
pp. 275-283 ◽  
Author(s):  
Nobuyoshi ISHIBASHI ◽  
Eizo KONDO ◽  
Tomotoshi KASHIO
2019 ◽  
Vol 15 (2) ◽  
pp. e1007503 ◽  
Author(s):  
Christopher A. Bell ◽  
Catherine J. Lilley ◽  
James McCarthy ◽  
Howard J. Atkinson ◽  
P. E. Urwin

Author(s):  
Rinu Kooliyottil ◽  
Koushik Rao Gadhachanda ◽  
Nejra Solo ◽  
Louise-Marie Dandurand

The molecular interaction between the nematode and the host plant cells is complex and sophisticated. Initial contact with the plant parasitic nematodes (PPNs) triggers immune response in the host plant system which includes the release of toxic molecules. To put a bridle on this immune response, PPNs trigger pivotal cytoprotective mechanisms, such as antioxidant and detoxification pathways. Mechanisms of these pathways have been studied in PPNs and the specific genes involved have been targeted for gene silencing research in view of developing novel control measures. However, one of the important group of proteins involved in detoxification pathways known as ABC-transporters are not being studied until recently in PPNs. This opinion article focusses on the current knowledge and future prospects of ABC transporters in PPNs.


2019 ◽  
Author(s):  
Steven Dyer ◽  
Ryan T Weir ◽  
Deborah Cox ◽  
Xavier Cheseto ◽  
Baldwyn Torto ◽  
...  

Plant root exudates are compositionally diverse, plastic and adaptive. Ethylene signalling influences the attraction of plant parasitic nematodes (PPNs), presumably through the modulation of root exudate composition. Understanding this pathway could lead to new sources of crop parasite resistance. Here we have used Virus-Induced Gene Silencing (VIGS) to knockdown the expression of two ETHYLENE RESPONSE FACTOR (ERF) genes, ERF-E2 and ERF-E3 in tomato. Root exudates are significantly more attractive to the PPNs Meloidogyne incognita, and Globodera pallida following knockdown of ERF-E2, which has no impact on the attraction of Meloidogyne javanica. Knockdown of ERF-E3 has no impact on the attraction of Meloidogyne or Globodera spp. GC-MS analysis revealed substantial changes in root exudate composition relative to controls. However, these changes do not alter the attraction of rhizosphere microbes Bacillus subtilis or Agrobacterium tumefaciens. This study further supports the potential of engineering plant root exudate for parasite control, through the modulation of plant genes.


Author(s):  
Rinu Kooliyottil ◽  
Koushik Rao Gadhachanda ◽  
Nejra Solo ◽  
Louise-Marie Dandurand

The molecular interaction between the nematode and the host plant cells is complex and sophisticated. Initial contact with the plant parasitic nematodes (PPNs) triggers immune response in the host plant system which includes the release of toxic molecules. To put a bridle on this immune response, PPNs trigger pivotal cytoprotective mechanisms, such as antioxidant and detoxification pathways. Mechanisms of these pathways have been studied in PPNs and the specific genes involved have been targeted for gene silencing research in view of developing novel control measures. However, one of the important group of proteins involved in detoxification pathways known as ABC-transporters are not being studied until recently in PPNs. This opinion article focusses on the current knowledge and future prospects of ABC transporters in PPNs.


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