Claim · model-written summary
Lesion nematode populations did not differ among soil and root samples from orchard blocks of different ages.
- Taxon
- Apple
Malus domesticat0 - Treatment
- orchard blocks of different agese0
- Interactor
- Lesion nematodee0pest
- Outcome
- Lesion nematode populationse0
- Direction
- did not differe0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Lesion nematode populations did not differ among soil and root samples from orchard blocks of different ages”
t0“Response to Apple Roots”
Title
Mark Mazzola Phytopathology 1999. doi:10.1094/phyto.1999.89.10.920
Other claims from this paper (13)
- Observation The fungal community from roots of apple seedlings grown in noncultivated orchard soil was dominated by genera commonly considered saprophytic.
- Association Plant-pathogenic fungi (Phytophthora, Pythium, Rhizoctonia) made up an increasing proportion of the root fungal community with increasing orchard block age.
- Observation Bacillus megaterium dominated the bacterial communities recovered from noncultivated soil.
- Observation Burkholderia cepacia dominated the bacterial communities in the rhizosphere of apple seedlings grown in orchard soil.
- Association Populations of Bacillus megaterium and Burkholderia cepacia declined with increasing orchard block age.
- Observation Microbial communities changed in noncultivated orchard soil after five successive cycles of Gala apple seedlings.
- Intervention effect Pasteurization of soil had no effect on apple growth in noncultivated soil.
- Intervention effect Pasteurization of soil significantly enhanced apple growth in third-year orchard block soil.
- Intervention effect Seedlings grown in pasteurized third-year orchard soil were equal in size to those grown in noncultivated soil.
- Mechanism Suppression of apple seedling growth is attributed to changes in the composition of the soil microbial community.
- Intervention effect Rhizoctonia solani AG 5 had no effect on growth of apple trees in noncultivated soil.
- Intervention effect Rhizoctonia solani AG 5 significantly reduced the growth of apple trees in soil from third-year orchard soil.
- Association Reductions in the relative populations of Burkholderia cepacia and Pseudomonas putida in the apple rhizosphere were associated with changes in soil microflora suppression of R. solani AG 5.