Abstract
Increasing evidence supports the existence of variations in the association of plant roots with symbiotic fungi that can improve plant growth and inhibit pathogens. However, it is unclear whether intraspecific variations in the symbiosis exist among plant cultivars and if they can be used to improve crop productivity. In this study, we determined genotype-specific variations in the association of chickpea roots with soil fungal communities and evaluated the effect of root mycota on crop productivity. A 2-year field experiment was conducted in southwestern Saskatchewan, the central zone of the chickpea growing region of the Canadian prairie. The effects of 13 cultivars of chickpea, comprising a wide range of phenotypes and genotypes, were tested on the structure of root-associated fungal communities based on internal transcribed spacer (ITS) and 18S rRNA gene markers using 454 amplicon pyrosequencing. Chickpea cultivar significantly influenced the structure of the root fungal community. The magnitude of the effect varied with the genotypes evaluated, and effects were consistent across years. For example, the roots of CDC Corrine, CDC Cory, and CDC Anna hosted the highest fungal diversity and CDC Alma and CDC Xena the lowest. Fusarium sp. was dominant in chickpea roots but was less abundant in CDC Corrine than the other cultivars. A bioassay showed that certain of these fungal taxa, including Fusarium species, can reduce the productivity of chickpea, whereas Trichoderma harzianum can increase chickpea productivity. The large variation in the profile of chickpea root mycota, which included growth-promoting and -inhibiting species, supports the possibility of improving the productivity of chickpea by improving its root mycota in chickpea genetic improvement programs using traditional breeding techniques.
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Claims 8
Claim · model-written summary
Chickpea cultivar significantly influenced the structure of the root fungal community.
- Taxon
- chickpea
Cicer arietinume1 - Treatment
- Chickpea cultivare1
- Outcome
- structure of the root fungal communitye1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chickpea cultivar significantly influenced the structure of the root fungal community”
Claim · model-written summary
The magnitude of the cultivar effect on root fungi varied with genotype but was consistent across years.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- genotypes evaluatede2
- Outcome
- magnitude of the effecte2
- Qualifier
- consistent across yearse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chickpea cultivar significantly influenced the structure of the root fungal community”
e2“The magnitude of the effect varied with the genotypes evaluated, and effects were consistent across years”
Claim · model-written summary
The roots of CDC Corrine, CDC Cory and CDC Anna hosted the highest fungal diversity.
- Taxon
- chickpeaCicer arietinume1
- Material
- CDC Corrine, CDC Cory, and CDC Annae3
- Organ / stage
- rootse3
- Outcome
- fungal diversitye3
- Direction
- higheste3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chickpea cultivar significantly influenced the structure of the root fungal community”
e3“the roots of CDC Corrine, CDC Cory, and CDC Anna hosted the highest fungal diversity”
Claim · model-written summary
CDC Alma and CDC Xena had the lowest fungal diversity in chickpea roots.
- Taxon
- chickpeaCicer arietinume1
- Material
- CDC Alma and CDC Xenae4
- Outcome
- fungal diversitye3
- Direction
- loweste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chickpea cultivar significantly influenced the structure of the root fungal community”
e3“the roots of CDC Corrine, CDC Cory, and CDC Anna hosted the highest fungal diversity”
e4“CDC Alma and CDC Xena the lowest”
Claim · model-written summary
Fusarium sp. was dominant in chickpea roots but less abundant in CDC Corrine than in the other cultivars.
- Taxon
- chickpeaCicer arietinume5
- Material
- CDC Corrinee5
- Organ / stage
- rootse5
- Outcome
- abundante5
- Direction
- lesse5
- Comparator
- the other cultivarse5
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Fusarium sp. was dominant in chickpea roots but was less abundant in CDC Corrine than the other cultivars”
Claim · model-written summary
Certain root fungal taxa, including Fusarium species, reduced chickpea productivity in a bioassay.
- Taxon
- chickpeaCicer arietinume6
- Treatment
- certain of these fungal taxae6
- Outcome
- productivity of chickpeae6
- Direction
- reducee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“A bioassay showed that certain of these fungal taxa, including Fusarium species, can reduce the productivity of chickpea, whereas Trichoderma harzianum can increase chickpea productivity”
Claim · model-written summary
Trichoderma harzianum increased chickpea productivity in a bioassay.
- Taxon
- chickpeaCicer arietinume6
- Treatment
- Trichoderma harzianume6
- Interactor
- Trichoderma harzianum
Trichoderma harzianume6other - Outcome
- chickpea productivitye6
- Direction
- increasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“A bioassay showed that certain of these fungal taxa, including Fusarium species, can reduce the productivity of chickpea, whereas Trichoderma harzianum can increase chickpea productivity”
Claim · model-written summary
Improving root mycota in chickpea genetic improvement programs may improve chickpea productivity.
- Taxon
- chickpeaCicer arietinume7
- Treatment
- improving its root mycotae7
- Outcome
- productivity of chickpeae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“supports the possibility of improving the productivity of chickpea by improving its root mycota in chickpea genetic improvement programs using traditional breeding techniques”
The same questions in other papers
Trichoderma harzianum · yield · Cicer arietinum (chickpea)Results agree
24 papers in the same direction as this paper
- positive
- positive
- positive
21 papers more in this group
See all 25 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.