Abstract
In the present investigation, the effect of arbuscular mycorrhiza (AM) fungal root colonization on nutrient uptake, growth and soil water depletion of cowpea plants exposed to a drought stress period was studied in a greenhouse experiment. Arbuscular mycorrhizal and non-AM plants of an old, local variety from Brazil 'Carioca', and of the breeding improved cultivar 'Epace-10' were exposed to 24 days of drought, with or without a subsequent period of water resupply. Control plants remained well watered throughout the growth period. The AM symbiosis greatly enhanced nutrient uptake of drought stressed plants. However, water uptake, growth and net photosynthesis were unaffected by AM root colonization during drought stress. Recovery after water resupply was much faster when plants were inoculated with AM, probably due to an improved plant nutritional status. The cultivar Epace-10 was much more dependent on the AM symbiosis for growth and nutrient uptake compared with Carioca in all irrigation treatments. Only when roots were AM colonized, Epace-10 plants were able to recover from drought stress after water resupply. Our study suggests that the AM symbiosis constitutes an important strategy by which leguminous plants overcome periods of drought. Under conditions of low soil water and P availability, the presence of AM fungal propagules in the field soil appears to be a prerequisite for successful cultivation of cowpea, particularly with respect to the breeding improved cultivar Epace-10.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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
AM symbiosis greatly enhanced nutrient uptake in drought-stressed cowpea.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- AM symbiosise0
- Interactor
- arbuscular mycorrhizalt0symbiont
- Outcome
- nutrient uptakee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The AM symbiosis greatly enhanced nutrient uptake of drought stressed plants.”
t0“arbuscular mycorrhizal root colonization on growth and nutrient uptake of two different cowpea (Vigna unguiculata [L.] Walp.) genotypes exposed to drought stress”
Claim · model-written summary
AM colonization did not affect cowpea water uptake, growth or net photosynthesis during drought.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- AM root colonizatione0
- Interactor
- arbuscular mycorrhizalt0symbiont
- Outcome
- water uptake, growth and net photosynthesise0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water uptake, growth and net photosynthesis were unaffected by AM root colonization during drought stress.”
t0“arbuscular mycorrhizal root colonization on growth and nutrient uptake of two different cowpea (Vigna unguiculata [L.] Walp.) genotypes exposed to drought stress”
Claim · model-written summary
Inoculated cowpea recovered more rapidly after water resupply.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- inoculated with AMe0
- Interactor
- AMe0symbiont
- Outcome
- Recovery after water resupplye0
- Direction
- much fastere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery after water resupply was much faster when plants were inoculated with AM”
t0“cowpea”
Claim · model-written summary
The authors attribute faster recovery probably to improved plant nutrition.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- Recovery after water resupplye0
- Qualifier
- improved plant nutritional statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery after water resupply was much faster when plants were inoculated with AM, probably due to an improved plant nutritional status.”
t0“cowpea”
Claim · model-written summary
Epace-10 depended more on AM symbiosis for growth than Carioca across irrigation treatments.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Epace-10e0
- Interactor
- AMe0symbiont
- Outcome
- growthe0
- Direction
- much more dependente0
- Comparator
- Cariocae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar Epace-10 was much more dependent on the AM symbiosis for growth and nutrient uptake compared with Carioca in all irrigation treatments.”
t0“cowpea”
Claim · model-written summary
Epace-10 depended more on AM symbiosis for nutrient uptake than Carioca across irrigation treatments.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Epace-10e0
- Interactor
- AMe0symbiont
- Outcome
- nutrient uptakee0
- Direction
- much more dependente0
- Comparator
- Cariocae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar Epace-10 was much more dependent on the AM symbiosis for growth and nutrient uptake compared with Carioca in all irrigation treatments.”
t0“cowpea”
Claim · model-written summary
Epace-10 recovered from drought after water resupply only with AM-colonized roots.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Epace-10e0
- Treatment
- AM colonizede0
- Interactor
- AMe0symbiont
- Outcome
- recover from drought stresse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only when roots were AM colonized, Epace-10 plants were able to recover from drought stress after water resupply.”
t0“cowpea”
Claim · model-written summary
The authors recommend AM fungal propagules for successful cowpea cultivation under low soil water and phosphorus, especially Epace-10.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- Epace-10e0
- Interactor
- AM fungal propagulese0symbiont
- Outcome
- presence of AM fungal propagules in the field soile0
- Qualifier
- low soil water and P availabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under conditions of low soil water and P availability, the presence of AM fungal propagules in the field soil appears to be a prerequisite for successful cultivation of cowpea, particularly with respect to the breeding improved cultivar Epace-10.”
The same questions in other papers
mycorrhiza · physiology: photosynthesis · Vigna unguiculata (cowpea)Positive and negative results
1 in the opposite direction
- positive
infection · physiology: photosynthesis · Vigna unguiculata (cowpea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
mycorrhiza · nutrient: content · Vigna unguiculata (cowpea)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →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.