Abstract
Observations were made on the distribution, level of parasitism and host preference of Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa. Infected female Meloidogyne were found in 34 % of 73 fields and occurred more frequently in coarse than fine textured soils. Fields of coarse textured soi1 infested with B. penetrans had been cultivated for more years than such fields without the parasite. Meloidogyne populations were generally larger in infested fields and data collected from one field show that the level of parasitism was greater at higher densities of the host. B. penetrans spores derived from M. jauanica infected a much larger proportion of the larvae of this species than larvae of M. incognita and larvae of an unidentified species of Meloidogyne. In contrast, spores from M. incognita were equally infective on al1 three species. An undescribed species of Meloidogyne was not infected by spores from M. javanica. RÉSUMÉ Observations sur Bacillus penetrans infestant Meloidogyne spp. dans les champs de canne à sucre en Afr ique du Sud Des observations ont été faites sur la répartition, le niveau de parasitisme et la préférence d’hôte de Bacillus penetrans infectant Meloidogyne spp. dans les champs de canne à sucre en Afrique du Sud. Les femelles de Meloido-gyne infestées furent observées dans 34 % des 73 champs, e t ce plus fréquemment dans les sols sableux que dans les
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Infected female Meloidogyne were found in 34 % of 73 sugarcane fields in South Africa.
- Taxon
- sugarcanet0
- Interactor
- Meloidogyne
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynet0pest - Second interactor
- Bacillus penetransPasteuria penetranst0biocontrol_agent
- Outcome
- Infected female Meloidogynee1
- Value
- 34 %e1
- Setting
- South Africat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e1“Infected female Meloidogyne were found in 34 % of 73 fields”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
Infected female Meloidogyne occurred more frequently in coarse than in fine textured soils in sugarcane fields.
- Taxon
- sugarcanet0
- Interactor
- MeloidogyneMeloidogynet0pest
- Outcome
- occurrede2
- Direction
- more frequentlye2
- Comparator
- fine textured soilse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Infected female Meloidogyne were found in 34 % of 73 fields and occurred more frequently in coarse than fine textured soils”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
Sugarcane fields of coarse-textured soil infested with B. penetrans had been cultivated for more years than fields without the parasite.
Verbatim
e3“Fields of coarse textured soi1 infested with B. penetrans had been cultivated for more years than such fields without the parasite”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
Meloidogyne populations were generally larger in sugarcane fields infested with B. penetrans.
- Taxon
- sugarcanet0
- Treatment
- infested fieldse4
- Interactor
- MeloidogyneMeloidogynet0pest
- Outcome
- Meloidogyne populationse4
- Direction
- generally largere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Meloidogyne populations were generally larger in infested fields”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
The level of Meloidogyne parasitism by B. penetrans was greater at higher densities of the host in sugarcane fields.
- Taxon
- sugarcanet0
- Treatment
- higher densities of the hoste5
- Interactor
- MeloidogyneMeloidogynet0pest
- Second interactor
- Bacillus penetransPasteuria penetranst0biocontrol_agent
- Outcome
- level of parasitisme5
- Direction
- greatere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the level of parasitism was greater at higher densities of the host”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
Spores of B. penetrans derived from M. javanica infected a much larger proportion of M. javanica larvae than larvae of M. incognita.
Verbatim
e6“B. penetrans spores derived from M. jauanica infected a much larger proportion of the larvae of this species than larvae of M. incognita”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
Spores of M. incognita were equally infective on M. javanica, M. incognita and an unidentified Meloidogyne species.
- Taxon
- sugarcanet0
- Treatment
- spores from M. incognitae7
- Interactor
- M. incognitaMeloidogyne incognitae7pest
- Outcome
- infectivee7
- Direction
- equallye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“spores from M. incognita were equally infective on al1 three species”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”
Claim · model-written summary
An undescribed Meloidogyne species was not infected by spores from M. javanica.
Verbatim
e0“An undescribed species of Meloidogyne was not infected by spores from M. javanica”
t0“Observations on Bacillus penetrans infecting Meloidogyne in sugarcane fields in South Africa”