Abstract
Abstract Drought is a major factor limiting plant growth. Plants cope with stress via morphophysiological responses. Rhizosphere‐related bacteria, fungi and other microorganisms can help plants cope with drought via various mechanisms. We conducted a pot experiment on Cyperus esculentus wherein we subjected it to various drought levels and analyzed the functional traits of its aboveground and belowground organs. High‐throughput sequencing was used to study the structure and diversity of the microbial community in the rhizosphere. Drought stress substantially lowered the densities of the leaves, stems, roots and seeds relative to the untreated control. Drought stress inhibited the growth and reduced the yield of C. esculentus . The leaves and seeds have higher water content and are more sensitive to drought stress than the roots. With the aggravation of drought stress, the plant height of C. esculentus decreased significantly, the root:shoot ratio increased and the specific leaf weight had no significant difference. Change in shoot height was the most evident response of C. esculentus to drought stress. Plants under drought stress reduced their leaf area and assumed a specific leaf weight to maintain photosynthetic performance. Rhizosphere fungi were more sensitive to drought stress than rhizosphere bacteria. Drought stress increased the relative abundances of Bacteroidetes , Verrucomicrobia , Patescibacteria , Actinobacteria and Nitrospirae . Drought‐stressed C. esculentus maintained their photosynthetic performance by reducing shoot height and leaf area while assuming a stable specific leaf weight. Drought stress exerted a significantly stronger negative impact on rhizosphere fungi than rhizosphere bacteria. The results clarified the response strategies of functional traits and rhizosphere microorganisms of C. esculentus to drought stress.
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Claims 16
Claim · model-written summary
Drought lowered densities of leaves, stems and roots.
- Taxon
- Cyperus esculentus
Cyperus esculentust0 - Treatment
- Drought stresse0
- Outcome
- densities of the leaves, stems, rootse0
- Direction
- lowerede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress substantially lowered the densities of the leaves, stems, roots and seeds relative to the untreated control.”
t0“Cyperus esculentus”
Claim · model-written summary
Drought lowered seed density.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- Drought stresse0
- Outcome
- seedse0
- Direction
- lowerede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress substantially lowered the densities of the leaves, stems, roots and seeds relative to the untreated control.”
t0“Cyperus esculentus”
Claim · model-written summary
Drought inhibited C. esculentus growth.
- Taxon
- C. esculentusCyperus esculentuse0
- Treatment
- Drought stresse0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress inhibited the growth and reduced the yield of C. esculentus”
Claim · model-written summary
Drought reduced C. esculentus yield.
- Taxon
- C. esculentusCyperus esculentuse0
- Treatment
- Drought stresse0
- Outcome
- yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress inhibited the growth and reduced the yield of C. esculentus”
Claim · model-written summary
Leaves and seeds had higher water content than roots.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Organ / stage
- leaves and seedse0
- Outcome
- water contente0
- Direction
- highere0
- Comparator
- rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaves and seeds have higher water content and are more sensitive to drought stress than the roots.”
t0“Cyperus esculentus”
Claim · model-written summary
Leaves and seeds were more drought-sensitive than roots.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Organ / stage
- leaves and seedse0
- Outcome
- sensitive to drought stresse0
- Direction
- moree0
- Comparator
- rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaves and seeds have higher water content and are more sensitive to drought stress than the roots.”
t0“Cyperus esculentus”
Claim · model-written summary
Plant height decreased significantly with worsening drought.
- Taxon
- C. esculentusCyperus esculentuse0
- Treatment
- drought stresse1
- Outcome
- plant heighte0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the aggravation of drought stress, the plant height of C. esculentus decreased significantly”
e1“With the aggravation of drought stress, the plant height of C. esculentus decreased significantly”
Claim · model-written summary
Root:shoot ratio increased with worsening drought.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- drought stresse1
- Outcome
- root:shoot ratioe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root:shoot ratio increased”
t0“Cyperus esculentus”
e1“With the aggravation of drought stress, the plant height of C. esculentus decreased significantly”
Claim · model-written summary
Specific leaf weight showed no significant difference with worsening drought.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- Drought stresst0
- Outcome
- specific leaf weighte0
- Direction
- no significant differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the specific leaf weight had no significant difference”
t0“Effects of drought stress on the functional traits and rhizosphere microbial community structure of Cyperus esculentus”
Claim · model-written summary
Shoot height change was the most evident drought response.
- Taxon
- C. esculentusCyperus esculentuse0
- Treatment
- drought stresse1
- Outcome
- Change in shoot heighte0
- Direction
- most evidente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Change in shoot height was the most evident response of C. esculentus to drought stress.”
e1“With the aggravation of drought stress, the plant height of C. esculentus decreased significantly”
Claim · model-written summary
Drought-stressed plants reduced leaf area.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- drought stresse1
- Outcome
- leaf areae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants under drought stress reduced their leaf area”
t0“Cyperus esculentus”
e1“With the aggravation of drought stress, the plant height of C. esculentus decreased significantly”
Claim · model-written summary
Drought-stressed plants maintained photosynthetic performance through reduced shoot height and leaf area and stable specific leaf weight.
- Taxon
- C. esculentusCyperus esculentuse0
- Treatment
- Drought‐stressede0
- Outcome
- maintained their photosynthetic performancee0
- Qualifier
- by reducing shoot height and leaf area while assuming a stable specific leaf weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought‐stressed C. esculentus maintained their photosynthetic performance by reducing shoot height and leaf area while assuming a stable specific leaf weight.”
Claim · model-written summary
Rhizosphere fungi were more drought-sensitive than rhizosphere bacteria.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- drought stresse1
- Interactor
- Rhizosphere fungie0symbiont
- Outcome
- Rhizosphere fungie0
- Direction
- more sensitivee0
- Comparator
- rhizosphere bacteriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizosphere fungi were more sensitive to drought stress than rhizosphere bacteria.”
t0“Cyperus esculentus”
e1“With the aggravation of drought stress, the plant height of C. esculentus decreased significantly”
Claim · model-written summary
Drought increased relative abundances of Bacteroidetes, Verrucomicrobia and Patescibacteria.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- Drought stresse0
- Outcome
- relative abundances of Bacteroidetes , Verrucomicrobia , Patescibacteriae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress increased the relative abundances of Bacteroidetes , Verrucomicrobia , Patescibacteria , Actinobacteria and Nitrospirae .”
t0“Cyperus esculentus”
Claim · model-written summary
Drought increased relative abundances of Actinobacteria and Nitrospirae.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- Drought stresse0
- Outcome
- Actinobacteria and Nitrospiraee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress increased the relative abundances of Bacteroidetes , Verrucomicrobia , Patescibacteria , Actinobacteria and Nitrospirae .”
t0“Cyperus esculentus”
Claim · model-written summary
Drought had a significantly stronger negative impact on rhizosphere fungi than bacteria.
- Taxon
- Cyperus esculentusCyperus esculentust0
- Treatment
- Drought stresse0
- Interactor
- rhizosphere fungie0symbiont
- Outcome
- negative impact on rhizosphere fungie0
- Direction
- strongere0
- Comparator
- rhizosphere bacteriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress exerted a significantly stronger negative impact on rhizosphere fungi than rhizosphere bacteria.”
t0“Cyperus esculentus”
The same questions in other papers
drought · growth · Cyperus esculentusResults agree
2 papers in the same direction as this paper
- negative
- negative
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.