Author: Muhammad ShahidPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Studies on the Host-parasite Relationship Between Pasteuria Penetrans and Root-knot Nematodes (Meloidogyne Spp.).
Author: Muhammad ShahidGenotypic and Environmental Influences on the Host-parasite Interaction Between Meloidogyne Arenaria and Pasteuria Penetrans
Author: Chang LiuPublisher:
ISBN:
Category :
Languages : en
Pages : 238
Book Description
Root-knot nematodes (Meloidogyne spp., RKN) are economically important plant-parasitic nematodes that have a wide distribution. Pasteuria penetrans is gram-positive bacterium that is an obligate parasite of RKN. Numerous field studies have shown the suppression of RKN by P. penetrans, demonstrating the potential to be developed into a biological control product. The endospores of P. penetrans attach to the surface coat of RKN and subsequently sterilize the female. Environmental factors influenced P. penetrans spore attachment. Exposure to root exudates of second-stage juveniles (J2) reduced spore attachment, suggesting the nematode surface coat was influenced by root exudates. Application of P. penetrans spores in furrow reduced egg production more than as a seed treatment. When applied in furrow, spores may have a wider distribution in the soil compared to spores applied to the seed, and J2s migrating through the soil would encounter P. penetrans spores before they were exposed to root exudates and become more resistant to spore attachment. The susceptibility of RKN progeny was shown to be influenced by the maternal environment. Mothers raised under stressed conditions produced more resistant offspring than did mothers raised under favorable conditions. In a 4 year field study, rapid changes in the dominant spore phenotype were observed in each plot in each year, and the changes occurred on the local level. Such findings indicate the occurrence of negative frequency-dependence selection in this field. Single spore lines of a Florida P. penetrans population were used to test the phenotypic and immunological differences among spore lines. No difference in spore attachment phenotype was observed mainly because these single spore lines were obtained from single egg mass line (clonal) of M. arenaria; thus they may be the same spore attachment phenotype. This project provided much needed information on understanding the host-parasite interactions between P. penetrans and Meloidogyne spp, and provides suggestions for better developing P. penetrans into a biological control product.
Studies on Identification and Host-parasite Relationships of the Common Root-knot Nematodes (Meloidogyne Spp.) with Special Reference to Maryland
Author: Joseph Neal SasserPublisher:
ISBN:
Category : Root-knot nematodes
Languages : en
Pages : 116
Book Description
Root-knot Nematodes
Author: Roland N. PerryPublisher: CABI
ISBN: 184593492X
Category : Technology & Engineering
Languages : en
Pages : 530
Book Description
Root-knot nematodes are the most economically important group of plant-parasitic nematodes worldwide, and their control presents a major global challenge. Advances are being made in understanding their biology, host-parasite interaction and management strategies. Covers the taxonomy, classification, morphology, life-cycle biology, genomes, resistance, sampling, detection, and management strategies of these pests.
The Occurrence of Pasteuria Penetrans Infecting Root-Knot Nematodes In Vegetable Fields In Ecudor And Its Potential Role In Nematode Management
Author: Carmen G. TrivinoPublisher: INIAP Archivo Historico
ISBN:
Category :
Languages : en
Pages : 312
Book Description
Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes
Author: A. CiancioPublisher: Springer Science & Business Media
ISBN: 1402060637
Category : Technology & Engineering
Languages : en
Pages : 364
Book Description
The second volume of the IMPD series describes aspects related to the most important phytoparasitic nematodes, considering the integration of biological control methods with other management practices and technologies, including the use of predatory nematodes and microbial rhizosphere antagonists. A focus is given on regional issues. A review on nematode management in cotton is integrated by a chapter on management of nematodes on wheat. New technologies are also revised.
Studies on Host-parasite Relationship of Root-knot Nematode, Meloidogyne Incognita on Japanese Mint, Mentha Arvensis
Author: V. KumarMolecular Studies on the Host Parasite Relationship of Plants Infected with the Root-knot Nematode Meloidogyne Javanica
Author: Marie Véronique Audrey Ah-FongPublisher:
ISBN:
Category : Nematode-plant relationships
Languages : en
Pages : 406
Book Description
Studies on the Biology and Parasitic Relationship of Pasteuria Penetrans and Root-knot Nematode Meloidogyne Javanica
Author: Daim Ali DarbanPublisher:
ISBN:
Category : Biological pest control agents
Languages : en
Pages :
Book Description
Ecology and Host-parasite Relationships of Root-knot Nematodes (Meloidogyne SPP.) Infecting Dry Edible Beans (Phaseolus Vulgaris L.) in Colombia and Peru
Author: Barbara Anne MullinPublisher:
ISBN:
Category : Beans
Languages : en
Pages : 308
Book Description