Attachment of Pasteuria Penetrans Spores To the Root Knot Nematode Meloidogyne Javanica in Soil and Its Effects On Infectivity

Stirling, G. R.; Sharma, R. D.; Perry, J.H.

doi:10.1163/002925990x00211

Cited by 32 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It was interesting to notice that the tested biocontrol agents not only reduced the infectivity of nematodes, but also inhibited their reproduction. These results agree with those reported by Stirling and Sharma (1990) and El-Nagar et al (1998) on Pasteuria penetrans. Also, the tested biocontrol agents increased the number of rhizobial nodules on the root system.…”

Section: Discussionsupporting

confidence: 94%

Evaluation of some commercial bacterial biofertilizers and isolates against root knot nematode, Meloidogyne incognita infesting green bean, Phaseolus vulgaris

2015

Sci. Agric

View full text Add to dashboard Cite

Under field conditions, Four commercial biofertilizers namely, phosphorine (containing phosphate dissolving bacterium namely Bacillus megatherium or megaterium), Rhizobacterin (containing plant growth promotimg bacteria e.g. Bacillus spp. and Pseudomonas fluorescens), potassiumag ( containing potassium dissolving bacterium namely, Bacillus circulans), al-aukadin (containing Rhizobium phaseoli) as well as bacteria, Pseudomonas fluorescens and Serratia spp. as liquid cultures either alone or in combination were tested for biocontrolling root knot nematode, Meloidogyne incognita infesting green bean cv. Hama plants. The results showed that all treatments had the potentiality to significantly (p≤0.05) reduce the root-knot nematode infectivity and reproduction, to great extend, along the growing season of green bean plants as indicated by the number of galls, egg masses and hatched juveniles on roots and number of juveniles in soil. Three months after application, the percentages reduction of the number of galls ranged from 46.4 for phosphorine only (T1) to 72.5% for phosphorine + S. fluorescens (T7) and phosphorine + Serratia spp. (T11). The same trend was noticed for the percentages reduction of egg masses. Single treatments were superior to the combined ones in increasing the studied pod yield parameters (Number and weight of green pods). Phosphorine (T1) and al-aukadin (T4) were as equal as each other in increasing the percentage increase of weight of green pods (92.1%) followed by that recorded by using rhizobacterin (T2). Co-toxicity factors for the two combined treatments of commercial products of phosphorine + S. fluorescens(T7) and phosphorine + Serratia spp.(T11) with M incognita after three months showed additive interaction effects, as they caused higher percentage gall reduction than that caused by either of them alone. At the same trend, the soluble carbohydrate, soluble protein, nitrogen and potassium contents increased in leaves and pods of green bean by some of the tested compounds compared with those of untreated check

show abstract

Section: Discussionsupporting

confidence: 94%

Evaluation of some commercial bacterial biofertilizers and isolates against root knot nematode, Meloidogyne incognita infesting green bean, Phaseolus vulgaris

2015

Sci. Agric

View full text Add to dashboard Cite

show abstract

“…These results are consistent with previous reports on the importance of soil spore density in attachment of spores to J2 and infection of females by P. penetrans (1,5,7,18,20 Application of large numbers of spores/g soil calculated from the amount of P. penetrans added to a volume or area of soil will not result in adequate nematode control if the spores are poorly distributed. The number of spores/J2 and the % J2 with spores attached were better indicators of nematode control in this experiment than the calculated soil spore densities (20). Success in using P. penetrans in field situations will require developing P. penetrans formulations and application methods that rapidly establish relatively high and uniform spore densities in large volumes of soil.…”

Section: Discussionsupporting

confidence: 92%

Dose Response of Meloidogyne incognita Infected Cherry Tomatoes to Application of Pasteuria penetrans

Kasumimoto¹,

Ikeda²,

Kawada³

1993

Jpn. J. Nematol.

View full text Add to dashboard Cite

“…Bien que les spores de P penetrans puissent survivre longuement dans des sols secs (Stirling et Wachtel, 1980), l'humidité des sols (Brown et Smart, 1984) et plus encore l'alternance de dessiccation et d'humidification des spores (Oostendorp et al, 1990) sont favorables au processus d'adhésion. Dans des conditions climatiques tempérées, un accroissement de la température jusqu'à 30°C favorise l'adhésion des spores aux nématodes (Stirling, 1981;Hatz et Dickson, 1992), phénomè-ne expliqué par une augmentation de la mobilité des juvéniles de Meloidogyne, donc par une probabilité de rencontre plus élevée entre les juvé-niles et les spores de P penetrans (Stirling et al, 1990). Cependant, l'adhésion des spores est toujours possible après un traitement à des tempé-ratures létales supérieures à 100°C (Dutky et Sayre, 1978 ;Stirling et al, 1986) (1950,1962 (Sayre, 1980), la qualité nutritionnelle de la plante pour le nématode pourrait avoir une incidence sur le développement et la multiplication intrac&oelig;lomique de P penetrans.…”

Section: Introductionunclassified

Influence des facteurs telluriques abiotiques et de la plante hôte sur l'infection des nématodes phytoparasites du genre Meloidogyne par l'actinomycète parasitoïde Pasteuria penetrans

Mateille¹,

Duponnois²,

Diop

1995

Agronomie

View full text Add to dashboard Cite

Meloidogyne, was found in 30% of the samples all over the areas which were prospected, but it was not abundant (only 8% of the juveniles of Meloidogyne were infected). Its distribution seems to be influenced by the soil texture and structure. Sandy soils could be more favourable than clay soils for spore attachment of the actinomycete to the nematode juveniles. However, in sandy soils, clay particles, which favour soil aggregation, could retain the spores in the upper soil horizon, with a positive effect of the absorption complex. The host plant of the nematode can influence the development of the parasitoid through the action of the root exudates, which could favour the environmental conditions for attachment, or through the action of plant nutrients, which could increase the multiplication of P penetrans in the coelomic cavity of the nematode.

show abstract

Attachment of Pasteuria Penetrans Spores To the Root Knot Nematode Meloidogyne Javanica in Soil and Its Effects On Infectivity

Cited by 32 publications

References 0 publications

Evaluation of some commercial bacterial biofertilizers and isolates against root knot nematode, Meloidogyne incognita infesting green bean, Phaseolus vulgaris

Evaluation of some commercial bacterial biofertilizers and isolates against root knot nematode, Meloidogyne incognita infesting green bean, Phaseolus vulgaris

Dose Response of Meloidogyne incognita Infected Cherry Tomatoes to Application of Pasteuria penetrans

Influence des facteurs telluriques abiotiques et de la plante hôte sur l'infection des nématodes phytoparasites du genre Meloidogyne par l'actinomycète parasitoïde Pasteuria penetrans

Contact Info

Product

Resources

About