Abstract
Arbuscular mycorrhizal fungi (AMF) colonisation of plant root facilitates the absorption of nutrients such as phosphorus (P) and enhances plant biotic and abiotic resistance generally. However, arbuscular mycorrhiza (AM) colonisation decreases with application of chemical fertiliser. Here, we investigated whether AMF inoculation in nurseries would facilitate AM colonisation and take physiological and ecological functions in watermelon ( Citrullus lanatus ) in the field. Pot experiments were carried out to study the change of AMF colonised seedling on physiology and gene expression in nursery site. Field experiments were performed to investigate the effect of nursery AMF inoculation on yield, quality and disease resistance of watermelon in the field. The results showed that nursery‐inoculated seedlings produced more dry matter and root surface area than non‐inoculated seedlings. Expression of the secretory purple acid phosphatase (PAP) genes ClaPAP10 and ClaPAP26 was up‐regulated following AMF colonisation. Accordingly, acid phosphatase activities at the root surface and P concentrations in seedling were enhanced. After transplantation to the field, the shoot dry matter and P concentration in old stem were higher in the nursery AMF inoculated seedlings than that in non‐AMF inoculated seedling. AMF inoculation also induced increase of yields and decrease of wilt disease indexes and soluble sugar content. In addition, acid phosphatase activities and AMF spore densities were increased by nursery‐inoculation in watermelon rhizosphere soil in the field. In conclusion, nursery colonisation AMF seedling enhanced watermelon growth and yield by improving the root growth and P acquisition in nursery cultivating stage, as well as optimised soil properties in the field. Nursery cultivation of watermelon seedling with AMF was an effective technique to reduce wilt disease in continuous cropped management in watermelon.
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Claims 13
Claim · model-written summary
Nursery inoculation increased seedling dry matter.
Not reportedTaxonInteractor
Verbatim
e0“nursery‐inoculated seedlings produced more dry matter and root surface area than non‐inoculated seedlings”
Claim · model-written summary
Nursery inoculation increased seedling root surface area.
- Treatment
- nursery‐inoculatede0
- Outcome
- root surface areae0
- Direction
- moree0
- Comparator
- non‐inoculated seedlingse0
Not reportedTaxon
Verbatim
e0“nursery‐inoculated seedlings produced more dry matter and root surface area than non‐inoculated seedlings”
Claim · model-written summary
AMF colonisation up-regulated ClaPAP10 and ClaPAP26 expression.
- Treatment
- AMF colonisatione0
- Interactor
- AMFe0symbiont
- Gene
- ClaPAP10 and ClaPAP26e0
- Outcome
- Expressione0
- Direction
- up‐regulatede0
Not reportedTaxonComparator
Verbatim
e0“Expression of the secretory purple acid phosphatase (PAP) genes ClaPAP10 and ClaPAP26 was up‐regulated following AMF colonisation”
Claim · model-written summary
AMF colonisation enhanced root-surface acid phosphatase activity.
- Organ / stage
- root surfacee0
- Outcome
- acid phosphatase activities at the root surfacee0
- Direction
- enhancede0
Not reportedTaxonTreatmentComparator
Verbatim
e0“acid phosphatase activities at the root surface and P concentrations in seedling were enhanced”
Claim · model-written summary
AMF colonisation enhanced phosphorus concentration in seedlings.
Not reportedTaxonTreatmentComparator
Verbatim
e0“acid phosphatase activities at the root surface and P concentrations in seedling were enhanced”
Claim · model-written summary
After field transplantation, nursery AMF inoculation increased shoot dry matter.
- Organ / stage
- shoote0
- Treatment
- nursery AMF inoculated seedlingse0
- Outcome
- shoot dry mattere0
- Direction
- highere0
- Comparator
- non‐AMF inoculated seedlinge0
- Setting
- fielde0
Not reportedTaxon
Verbatim
e0“After transplantation to the field, the shoot dry matter and P concentration in old stem were higher in the nursery AMF inoculated seedlings than that in non‐AMF inoculated seedling”
Claim · model-written summary
After field transplantation, nursery AMF inoculation increased P concentration in old stem.
- Organ / stage
- old steme0
- Treatment
- nursery AMF inoculated seedlingse0
- Outcome
- P concentration in old steme0
- Direction
- highere0
- Comparator
- non‐AMF inoculated seedlinge0
- Setting
- fielde0
Not reportedTaxon
Verbatim
e0“After transplantation to the field, the shoot dry matter and P concentration in old stem were higher in the nursery AMF inoculated seedlings than that in non‐AMF inoculated seedling”
Claim · model-written summary
AMF inoculation increased watermelon yields.
Not reportedTaxonComparator
Verbatim
e0“AMF inoculation also induced increase of yields and decrease of wilt disease indexes and soluble sugar content”
Claim · model-written summary
AMF inoculation decreased wilt disease indexes.
Not reportedTaxonComparator
Verbatim
e0“AMF inoculation also induced increase of yields and decrease of wilt disease indexes and soluble sugar content”
Claim · model-written summary
AMF inoculation decreased soluble sugar content.
Not reportedTaxonComparator
Verbatim
e0“AMF inoculation also induced increase of yields and decrease of wilt disease indexes and soluble sugar content”
Claim · model-written summary
Nursery inoculation increased acid phosphatase activity in watermelon rhizosphere soil.
- Taxon
- watermelon
Citrullus lanatuse0 - Treatment
- nursery‐inoculatione0
- Outcome
- acid phosphatase activitiese0
- Direction
- increasede0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acid phosphatase activities and AMF spore densities were increased by nursery‐inoculation in watermelon rhizosphere soil in the field”
Claim · model-written summary
Nursery inoculation increased AMF spore densities in watermelon rhizosphere soil.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- nursery‐inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- AMF spore densitiese0
- Direction
- increasede0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acid phosphatase activities and AMF spore densities were increased by nursery‐inoculation in watermelon rhizosphere soil in the field”
Claim · model-written summary
The authors recommend nursery cultivation of watermelon seedlings with AMF to reduce wilt under continuous cropping.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- AMFe0
- Interactor
- AMFe0symbiont
- Outcome
- reduce wilt diseasee0
- Qualifier
- continuous cropped managemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nursery cultivation of watermelon seedling with AMF was an effective technique to reduce wilt disease in continuous cropped management in watermelon”
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inoculation · nutrient: content · Citrullus lanatus (watermelon)Results agree
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mycorrhiza · yield · Citrullus lanatus (watermelon)Results agree
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See all 6 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.