Abstract
The leaf anatomical changes of Bruguiera gymnorrhiza seedling under gradient salinities were observed,and the effects of salt stress on plant growth were analysed.The hypocotyl of B. gymnorrhiza could germinated under the salinities from 0‰ to 50‰.However,the plant height,fresh weight and leaf area had negative correlation with salinities.With increment of salinity,the thickness of upper and lower cuticle,upper and lower epidermis,and the densities of tannin cell increased,but the thickness of upper and lower endodermis,the intercellular spaces of spongy tissue of leaves decreased.The thickness of palisade tissue decreased,and that of spongy tissue had no relation with salinity,the ratio of the thickness of palisade tissue to spongy tissue decreased with increasing salinity.With increasing of salinity,there were no obvious difference in quantity and shape of chloroplast under SEM,but their location in palisade cells occurred change.All these changes made seedlings photosynthesis inhibited and growth stunted.
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Claims 10
Claim · model-written summary
Hypocotyls germinated across 0‰ to 50‰ salinity.
- Taxon
- Bruguiera gymnorrhiza
Bruguiera gymnorhizat0 - Organ / stage
- hypocotyle0
- Treatment
- salinities from 0‰ to 50‰e0
- Outcome
- could germinatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“The hypocotyl of B. gymnorrhiza could germinated under the salinities from 0‰ to 50‰.”
Claim · model-written summary
Plant height, fresh weight and leaf area declined with salinity.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- salinitiese0
- Outcome
- plant height,fresh weight and leaf areae0
- Direction
- negative correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“the plant height,fresh weight and leaf area had negative correlation with salinities”
Claim · model-written summary
Upper and lower cuticle and epidermis thickness and tannin cell density increased with salinity.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- salinitye0
- Outcome
- thickness of upper and lower cuticle,upper and lower epidermis,and the densities of tannin celle0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“With increment of salinity,the thickness of upper and lower cuticle,upper and lower epidermis,and the densities of tannin cell increased”
Claim · model-written summary
Upper and lower endodermis thickness and spongy tissue intercellular spaces decreased with salinity.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- salinitye1
- Outcome
- thickness of upper and lower endodermis,the intercellular spaces of spongy tissue of leavese0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“the thickness of upper and lower endodermis,the intercellular spaces of spongy tissue of leaves decreased”
e1“With increment of salinity,the thickness of upper and lower cuticle,upper and lower epidermis,and the densities of tannin cell increased”
Claim · model-written summary
Palisade tissue thickness decreased as salinity increased.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- salinitye0
- Outcome
- thickness of palisade tissuee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“The thickness of palisade tissue decreased,and that of spongy tissue had no relation with salinity”
Claim · model-written summary
Spongy tissue thickness had no relation with salinity.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- salinitye0
- Outcome
- spongy tissuee0
- Direction
- no relatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“that of spongy tissue had no relation with salinity”
Claim · model-written summary
The palisade to spongy tissue thickness ratio decreased as salinity increased.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- increasing salinitye0
- Outcome
- ratio of the thickness of palisade tissue to spongy tissuee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“the ratio of the thickness of palisade tissue to spongy tissue decreased with increasing salinity”
Claim · model-written summary
Chloroplast quantity and shape showed no obvious difference with salinity.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Treatment
- increasing of salinitye0
- Outcome
- quantity and shape of chloroplaste0
- Direction
- no obvious differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“With increasing of salinity,there were no obvious difference in quantity and shape of chloroplast under SEM”
Claim · model-written summary
Chloroplast location in palisade cells changed with increasing salinity.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Outcome
- location in palisade cells occurred changee0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“their location in palisade cells occurred change”
Claim · model-written summary
The authors conclude the leaf changes inhibited photosynthesis and stunted growth.
- Taxon
- Bruguiera gymnorrhizaBruguiera gymnorhizat0
- Outcome
- photosynthesis inhibited and growth stuntede0
- Qualifier
- All these changese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bruguiera gymnorrhiza”
e0“All these changes made seedlings photosynthesis inhibited and growth stunted.”