Abstract
Changes of leaf cellular ultra-structure in response to high temperature and drought stress in three varieties(Accent,Bartwingo and Fairway) of Lolium perenne were investigated.Under high temperature stress of 35℃ chloroplasts swelled,became round and moved centrally.There was some plastoglobulis within the chloroplasts.The chloroplasts of Fairway under drought stress from 25% PEG-6000 solution were badly damaged.Their grana and envelope disrupted and the lamella swelled,split,and even dissolved and disappeared.The morphological variation of the mitochondrion was not distinct and their number increased under high temperature and soil drought stress.Compared with chloroplasts,the mitochondrial tolerance and resistance to high temperature and drought stress were strong.Accent's tolerance and resistance to high temperature and drought stress were stronger than those of Fairway and Bartwingo,but were not significant.
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Claims 7
Claim · model-written summary
Under high temperature stress of 35℃ chloroplasts swelled, became round and moved centrally.
- Taxon
- Lolium perenne
Lolium perennee0 - Treatment
- high temperature stress of 35℃e1
- Outcome
- chloroplasts swellede1
- Qualifier
- became round and moved centrallye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e1“Under high temperature stress of 35℃ chloroplasts swelled,became round and moved centrally”
Claim · model-written summary
Chloroplasts of Fairway under drought stress from 25% PEG-6000 solution were badly damaged.
- Taxon
- Lolium perenneLolium perennee0
- Material
- Fairwaye2
- Treatment
- drought stress from 25% PEG-6000 solutione2
- Outcome
- chloroplastse2
- Qualifier
- were badly damagede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e2“The chloroplasts of Fairway under drought stress from 25% PEG-6000 solution were badly damaged”
Claim · model-written summary
In Fairway chloroplasts under drought, grana and envelope were disrupted.
- Taxon
- Lolium perenneLolium perennee0
- Material
- Fairwaye2
- Organ / stage
- chloroplastse2
- Outcome
- grana and envelopee3
- Direction
- disruptede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e2“The chloroplasts of Fairway under drought stress from 25% PEG-6000 solution were badly damaged”
e3“Their grana and envelope disrupted and the lamella swelled,split,and even dissolved and disappeared”
Claim · model-written summary
The morphological variation of mitochondria under high temperature and soil drought stress was not distinct.
- Taxon
- Lolium perenneLolium perennee0
- Organ / stage
- mitochondrione4
- Treatment
- high temperature and soil drought stresse4
- Outcome
- morphological variation of the mitochondrione4
- Direction
- not distincte4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e4“The morphological variation of the mitochondrion was not distinct and their number increased under high temperature and soil drought stress”
Claim · model-written summary
The number of mitochondria increased under high temperature and soil drought stress.
- Taxon
- Lolium perenneLolium perennee0
- Organ / stage
- mitochondrione4
- Treatment
- high temperature and soil drought stresse4
- Outcome
- numbere4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e4“The morphological variation of the mitochondrion was not distinct and their number increased under high temperature and soil drought stress”
Claim · model-written summary
Compared with chloroplasts, mitochondrial tolerance and resistance to high temperature and drought stress were strong.
- Taxon
- Lolium perenneLolium perennee0
- Treatment
- high temperature and drought stresse5
- Outcome
- mitochondrial tolerance and resistancee5
- Direction
- were stronge5
- Comparator
- chloroplastse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e5“Compared with chloroplasts,the mitochondrial tolerance and resistance to high temperature and drought stress were strong”
Claim · model-written summary
Accent tolerance and resistance to high temperature and drought stress were stronger than those of Fairway and Bartwingo, but not significant.
- Taxon
- Lolium perenneLolium perennee0
- Material
- Accente6
- Treatment
- high temperature and drought stresse6
- Outcome
- tolerance and resistancee6
- Direction
- strongere6
- Qualifier
- but were not significante6
- Comparator
- Fairway and Bartwingoe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three varieties(Accent,Bartwingo and Fairway) of Lolium perenne”
e6“Accent's tolerance and resistance to high temperature and drought stress were stronger than those of Fairway and Bartwingo,but were not significant”
The same questions in other papers
drought · disease · Lolium perenne (perennial ryegrass)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.