Abstract
A hydroponic cultivation experiment was carried out with two mini-watermelon cultivars differing in salt tolerance to study the effect of different NaCl concentrations on ions distribution in watermelon seedlings.The results show that NaCl stress inhibits the growth of watermelon seedlings,and the extent of inhibition for 'Xiuya' is less than that of 'Xiuli'.Increasing NaCl concentration,the Na+ and Cl-contents of the seedlings are increased,while the K+,Ca2+ and Mg2+ contents decreased.The five ions present a compartmentalized distribution.Cl-mainly accumulates in the stems and Na+ mainly concentrates in roots and stems.The decreased range of the K+ contents is larger in stems and smaller in leaves,Ca2+ and Mg2+ mainly exist in stems and leaves and the declined extent in leaves is less.The abilities of selective transportation of K+ and Ca2+ from roots to stems are decreased,while the abilities from stems to leaves are increased under the NaCl stress,which contributes to alleviate the damage of NaCl stress to leaves.Compared to cv.'Xiuli',the K+ and Ca2+ contents in leaves of cv.'Xiuya' reduced less,Cl-and Na+ accumulations are less.As a consequence,K+/Na+ and Ca2+/Na+ radios are higher,and SK,Na and SCa,Na ratios of selective transportations from stems to leaves are also higher.This research reveals that lower selective transportation of Na+ to leaves is one of main reasons for cv.'Xiuya' with more salt-tolerance,and the compartmentalized distribution of ions on the organs is one of physiological adaptation mechanisms of watermelon plants to salinity.
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Claims 19
Claim · model-written summary
NaCl stress inhibited the growth of watermelon seedlings.
- Taxon
- watermelon
Citrullus lanatuse0 - Organ / stage
- seedlingse0
- Treatment
- NaCl stresse0
- Outcome
- growthe0
- Direction
- inhibitse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
Claim · model-written summary
Growth inhibition by NaCl was smaller in cultivar Xiuya than in Xiuli.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Xiuyae1
- Outcome
- extent of inhibitione1
- Direction
- lesse1
- Comparator
- Xiulie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e1“the extent of inhibition for 'Xiuya' is less than that of 'Xiuli'”
Claim · model-written summary
Na+ and Cl- contents of watermelon seedlings increased with increasing NaCl concentration.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- Increasing NaCl concentratione2
- Outcome
- Na+ and Cl-contentse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e2“Increasing NaCl concentration,the Na+ and Cl-contents of the seedlings are increased,while the K+,Ca2+ and Mg2+ contents decreased”
Claim · model-written summary
K+, Ca2+ and Mg2+ contents of watermelon seedlings decreased with increasing NaCl concentration.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- Increasing NaCl concentratione2
- Outcome
- K+,Ca2+ and Mg2+ contentse2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e2“Increasing NaCl concentration,the Na+ and Cl-contents of the seedlings are increased,while the K+,Ca2+ and Mg2+ contents decreased”
Claim · model-written summary
The five ions show a compartmentalized distribution in watermelon seedlings.
- Taxon
- watermelonCitrullus lanatuse0
- Outcome
- compartmentalized distributione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e3“The five ions present a compartmentalized distribution”
Claim · model-written summary
Cl- mainly accumulates in the stems of watermelon seedlings.
- Taxon
- watermelonCitrullus lanatuse0
- Organ / stage
- stemse4
- Outcome
- Cl-mainly accumulatese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e4“Cl-mainly accumulates in the stems and Na+ mainly concentrates in roots and stems”
Claim · model-written summary
Na+ mainly concentrates in the roots and stems of watermelon seedlings.
- Taxon
- watermelonCitrullus lanatuse0
- Organ / stage
- roots and stemse4
- Outcome
- Na+ mainly concentratese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e4“Cl-mainly accumulates in the stems and Na+ mainly concentrates in roots and stems”
Claim · model-written summary
The decrease range of K+ contents is larger in stems and smaller in leaves.
- Taxon
- watermelonCitrullus lanatuse0
- Organ / stage
- stemse5
- Outcome
- decreased range of the K+ contentse5
- Qualifier
- larger in stems and smaller in leavese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e5“The decreased range of the K+ contents is larger in stems and smaller in leaves,Ca2+ and Mg2+ mainly exist in stems and leaves and the declined extent in leaves is less”
Claim · model-written summary
Ca2+ and Mg2+ mainly exist in the stems and leaves of watermelon seedlings.
- Taxon
- watermelonCitrullus lanatuse0
- Organ / stage
- stems and leavese5
- Outcome
- Ca2+ and Mg2+ mainly existe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e5“The decreased range of the K+ contents is larger in stems and smaller in leaves,Ca2+ and Mg2+ mainly exist in stems and leaves and the declined extent in leaves is less”
Claim · model-written summary
The decline of Ca2+ and Mg2+ contents was less in leaves than in other organs.
- Taxon
- watermelonCitrullus lanatuse0
- Organ / stage
- leavese5
- Outcome
- declined extente5
- Direction
- lesse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e5“The decreased range of the K+ contents is larger in stems and smaller in leaves,Ca2+ and Mg2+ mainly exist in stems and leaves and the declined extent in leaves is less”
Claim · model-written summary
NaCl stress decreased the selective transport of K+ and Ca2+ from roots to stems.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- NaCl stresse6
- Outcome
- abilities of selective transportation of K+ and Ca2+ from roots to stemse6
- Direction
- decreasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e6“The abilities of selective transportation of K+ and Ca2+ from roots to stems are decreased,while the abilities from stems to leaves are increased under the NaCl stress,which contributes to alleviate the damage of NaCl stress to leaves”
Claim · model-written summary
NaCl stress increased the selective transport from stems to leaves.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- NaCl stresse6
- Outcome
- abilities from stems to leavese6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e6“The abilities of selective transportation of K+ and Ca2+ from roots to stems are decreased,while the abilities from stems to leaves are increased under the NaCl stress,which contributes to alleviate the damage of NaCl stress to leaves”
Claim · model-written summary
The authors interpret the stem-to-leaf transport increase under NaCl stress as contributing to alleviating leaf damage.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- NaCl stresse6
- Outcome
- alleviate the damage of NaCl stress to leavese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e6“The abilities of selective transportation of K+ and Ca2+ from roots to stems are decreased,while the abilities from stems to leaves are increased under the NaCl stress,which contributes to alleviate the damage of NaCl stress to leaves”
Claim · model-written summary
Cultivar Xiuya showed a smaller reduction of K+ and Ca2+ contents in leaves than Xiuli under salinity.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Xiuyae7
- Outcome
- K+ and Ca2+ contents in leavese7
- Direction
- reduced lesse7
- Comparator
- Xiulie7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e7“Compared to cv.'Xiuli',the K+ and Ca2+ contents in leaves of cv.'Xiuya' reduced less,Cl-and Na+ accumulations are less”
Claim · model-written summary
Cultivar Xiuya accumulated less Cl- and Na+ than Xiuli under salinity.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Xiuyae7
- Outcome
- Cl-and Na+ accumulationse7
- Direction
- lesse7
- Comparator
- Xiulie7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e7“Compared to cv.'Xiuli',the K+ and Ca2+ contents in leaves of cv.'Xiuya' reduced less,Cl-and Na+ accumulations are less”
Claim · model-written summary
K+/Na+ and Ca2+/Na+ ratios were higher in Xiuya than in Xiuli.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Xiuyae7
- Outcome
- K+/Na+ and Ca2+/Na+ radiose6
- Direction
- highere6
- Comparator
- Xiulie7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e7“Compared to cv.'Xiuli',the K+ and Ca2+ contents in leaves of cv.'Xiuya' reduced less,Cl-and Na+ accumulations are less”
e6“As a consequence,K+/Na+ and Ca2+/Na+ radios are higher,and SK,Na and SCa,Na ratios of selective transportations from stems to leaves are also higher”
Claim · model-written summary
SK,Na and SCa,Na ratios of selective transport from stems to leaves were higher in watermelon seedlings under salinity.
- Taxon
- watermelonCitrullus lanatuse0
- Organ / stage
- stems to leavese6
- Outcome
- SK,Na and SCa,Na ratios of selective transportations from stems to leavese6
- Direction
- highere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e6“As a consequence,K+/Na+ and Ca2+/Na+ radios are higher,and SK,Na and SCa,Na ratios of selective transportations from stems to leaves are also higher”
Claim · model-written summary
The authors state that lower selective transport of Na+ to leaves is a main reason for the greater salt tolerance of Xiuya.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Xiuyae1
- Outcome
- salt-tolerancee1
- Qualifier
- lower selective transportation of Na+ to leavese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e1“This research reveals that lower selective transportation of Na+ to leaves is one of main reasons for cv.'Xiuya' with more salt-tolerance,and the compartmentalized distribution of ions on the organs is one of physiological adaptation mechanisms of watermelon plants to salinity”
Claim · model-written summary
The authors state that compartmentalized ion distribution is a physiological adaptation mechanism of watermelon to salinity.
- Taxon
- watermelonCitrullus lanatuse0
- Outcome
- physiological adaptation mechanisms of watermelon plants to salinitye1
- Qualifier
- compartmentalized distribution of ions on the organse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress inhibits the growth of watermelon seedlings”
e1“This research reveals that lower selective transportation of Na+ to leaves is one of main reasons for cv.'Xiuya' with more salt-tolerance,and the compartmentalized distribution of ions on the organs is one of physiological adaptation mechanisms of watermelon plants to salinity”
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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.