Abstract
Status of seed germination,changes of seedling growth and some physiological indexes in leaf of Matricaria chamomilla Linn.under NaCl stress condition with mass ratios of 0.2%,0.4%,0.6%,0.8%,1.0%,1.2% and 1.4% were analyzed,and change of transection anatomical structure of its different organs after NaCl stress was also observed by paraffin method.The results show that with rising of NaCl mass ratio,relative germination rate,germination energy and germination rate of seeds gradually decrease,while relative salt injury rate gradually increases;root length,plant height,fresh and dry weights per plant of seedlings gradually decrease,but decreasing range of root length is larger than that of plant height and that of fresh weight is larger than that of dry weight;chlorophyll content in leaf appears a trend of firstly increasing and then decreasing,while soluble sugar content,proline content and POD activity appear a gradually increasing trend.Under NaCl stress condition,relative germination rate, germination energy and germination rate of seeds all are extremely significantly(P0.01) or significantly(P0.05) lower than those of the control(0.0% NaCl),except 0.2% NaCl treatment group,relative salt injury rate of other treatment groups is extremely significantly higher than that of the control,and under 1.4% NaCl stress condition,all seeds can not germinate normally.Under NaCl stress condition,root length,plant height,fresh and dry weights per plant of seedlings of all treatment groups are significantly or extremely significantly lower than those of the control,while soluble sugar content,proline content and POD activity in leaf are significantly or extremely significantly higher than those of the control;and except 1.2% NaCl treatment group,chlorophyll content of other treatment groups is also extremely significantly higher than that of the control.Under NaCl stress condition,there are obvious changes in plant morphology and transection anatomical structure of different organs of M.chamomilla seedlings.With rising of NaCl mass ratio,M.chamomilla seedlings appear the phenomena of dwarf in plant height,dry and hard in plant,smaller leaves and increase in degree of succulence.After treated by 0.6% NaCl for twelve months,in stem transection,collenchyma number in cortex and air cavity number in parenchyma increase and vessels in vascular bundle are more developed;in root transection,air cavity number in cortex increases and vessels in vascular cylinder are relatively developed;in leaf transection,air cavity number in parenchyma of rachis increases,leaf epidermis is shrinkage and cell layers of palisade tissue increase obviously.The comprehensive analysis result suggests that M.chamomilla possesses a certain resistance to NaCl stress,but NaCl stress with high concentration has an obvious effect on its seed germination,seedling growth and morphology.
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Claims 15
Claim · model-written summary
Increasing NaCl reduced seed germination measures.
- Taxon
- Matricaria chamomilla Linn.
Matricaria chamomillae1 - Treatment
- NaCle0
- Outcome
- relative germination rate,germination energy and germination rate of seedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with rising of NaCl mass ratio,relative germination rate,germination energy and germination rate of seeds gradually decrease”
e1“Matricaria chamomilla Linn.”
Claim · model-written summary
Increasing NaCl raised relative salt injury rate.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCle1
- Outcome
- relative salt injury ratee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative salt injury rate gradually increases”
e1“with rising of NaCl mass ratio”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
Increasing NaCl decreased seedling root length, plant height, and fresh weight.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCle1
- Outcome
- root length,plant height,fresh and dry weights per plant of seedlingse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root length,plant height,fresh and dry weights per plant of seedlings gradually decrease”
e1“with rising of NaCl mass ratio”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
Leaf chlorophyll content first increased and then decreased with rising NaCl.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCle1
- Outcome
- chlorophyll content in leafe0
- Direction
- firstly increasing and then decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content in leaf appears a trend of firstly increasing and then decreasing”
e1“with rising of NaCl mass ratio”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
Soluble sugar, proline and POD activity increased with rising NaCl.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCle1
- Outcome
- soluble sugar content,proline content and POD activitye0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble sugar content,proline content and POD activity appear a gradually increasing trend”
e1“with rising of NaCl mass ratio”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
NaCl significantly lowered germination measures versus control; at 1.4%, seeds did not germinate normally.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCl stresse1
- Outcome
- relative germination rate, germination energy and germination rate of seedse0
- Direction
- lowere0
- Comparator
- control(0.0% NaCl)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative germination rate, germination energy and germination rate of seeds all are extremely significantly(P0.01) or significantly(P0.05) lower than those of the control(0.0% NaCl)”
e1“Under NaCl stress condition,relative germination rate”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
All seeds failed to germinate normally at 1.4% NaCl.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae1
- Treatment
- 1.4% NaCle0
- Outcome
- all seeds can not germinate normallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 1.4% NaCl stress condition,all seeds can not germinate normally”
e1“Matricaria chamomilla Linn.”
Claim · model-written summary
NaCl significantly increased salt injury rate over control except at 0.2%.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae1
- Treatment
- NaCle0
- Outcome
- relative salt injury ratee0
- Direction
- highere0
- Qualifier
- except 0.2% NaCl treatment groupe0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except 0.2% NaCl treatment group,relative salt injury rate of other treatment groups is extremely significantly higher than that of the control”
e1“Matricaria chamomilla Linn.”
Claim · model-written summary
All NaCl treatment groups had significantly shorter roots and plants and less fresh and dry weight than control.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCl stresse1
- Outcome
- root length,plant height,fresh and dry weights per plant of seedlingse0
- Direction
- lowere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root length,plant height,fresh and dry weights per plant of seedlings of all treatment groups are significantly or extremely significantly lower than those of the control”
e1“Under NaCl stress condition,root length”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
NaCl raised soluble sugar, proline and POD activity significantly above control.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Treatment
- NaCl stresse1
- Outcome
- soluble sugar content,proline content and POD activity in leafe0
- Direction
- highere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble sugar content,proline content and POD activity in leaf are significantly or extremely significantly higher than those of the control”
e1“Under NaCl stress condition,root length”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
Except at 1.2% NaCl, treatment groups had significantly higher chlorophyll than control.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae1
- Treatment
- NaCle0
- Outcome
- chlorophyll contente0
- Direction
- highere0
- Qualifier
- except 1.2% NaCl treatment groupe0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except 1.2% NaCl treatment group,chlorophyll content of other treatment groups is also extremely significantly higher than that of the control”
e1“Matricaria chamomilla Linn.”
Claim · model-written summary
Rising NaCl produced dwarf, dry and hard seedlings with smaller and more succulent leaves.
- Taxon
- M.chamomillaMatricaria chamomillae0
- Treatment
- NaCle0
- Outcome
- dwarf in plant height,dry and hard in plant,smaller leavese0
- Direction
- smallere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With rising of NaCl mass ratio,M.chamomilla seedlings appear the phenomena of dwarf in plant height,dry and hard in plant,smaller leaves and increase in degree of succulence”
Claim · model-written summary
At 0.6% NaCl for twelve months, stem cortex collenchyma and parenchyma air cavities increased and vessels developed.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae1
- Organ / stage
- steme0
- Treatment
- 0.6% NaCl for twelve monthse0
- Outcome
- collenchyma number in cortex and air cavity number in parenchymae0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After treated by 0.6% NaCl for twelve months,in stem transection,collenchyma number in cortex and air cavity number in parenchyma increase and vessels in vascular bundle are more developed”
e1“Matricaria chamomilla Linn.”
Claim · model-written summary
At 0.6% NaCl for twelve months, root cortex air cavities increased and vascular cylinder vessels were more developed.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Organ / stage
- roote0
- Treatment
- 0.6% NaCl for twelve monthse1
- Outcome
- air cavity number in cortexe0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in root transection,air cavity number in cortex increases and vessels in vascular cylinder are relatively developed”
e1“0.6% NaCl for twelve months”
e2“Matricaria chamomilla Linn.”
Claim · model-written summary
At 0.6% NaCl, leaf rachis air cavities and palisade cell layers increased and epidermis shrank.
- Taxon
- Matricaria chamomilla Linn.Matricaria chamomillae2
- Organ / stage
- leafe0
- Treatment
- 0.6% NaCl for twelve monthse1
- Outcome
- air cavity number in parenchyma of rachise0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in leaf transection,air cavity number in parenchyma of rachis increases,leaf epidermis is shrinkage and cell layers of palisade tissue increase obviously”
e1“0.6% NaCl for twelve months”
e2“Matricaria chamomilla Linn.”
The same questions in other papers
sodium chloride · growth · Matricaria chamomillaResults agree
2 papers in the same direction as this paper
- negative
- negative
salinity · growth · Matricaria chamomillaPositive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
3 papers more in this group
See all 7 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.