Abstract
Effect of salinity on malate dehydrogenase activity was studied.Pea root tips contain 2 different malate dehydrogenases. One is located in the particulate, mitochondrial fraction, the other in the soluble, cytoplasmic fraction. Both can act when coupled with either NAD or NADP.Growing plants in Na(2)SO(4) salinated medium did not affect the pattern of the malate dehydrogenases in the root tips. Growing plants in NaCl salinated media resulted in the appearance of a new, third isoenzyme. This new isoenzyme was located in the cytoplasmic fraction.Salinity of both types, when present in growth medium, induced increases in the NADP coupled activity of the mitochondrial malate dehydrogenase. The NAD coupled activity, however, was depressed except in the cytoplasmic fraction of plants grown in media salinated with NaCl to 1 atmosphere. Addition of either of the salts to assay media of enzymes, isolated from plants grown in non salinated substrate, did not have any significant effect.
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Claims 7
Claim · model-written summary
Pea root tips contain two malate dehydrogenases in mitochondrial and cytoplasmic fractions.
- Taxon
- Pea
Lathyrus oleraceust0 - Organ / stage
- root tipse0
- Gene
- malate dehydrogenasese0
- Outcome
- 2 different malate dehydrogenasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“Pea root tips contain 2 different malate dehydrogenases. One is located in the particulate, mitochondrial fraction, the other in the soluble, cytoplasmic fraction”
Claim · model-written summary
Both pea root enzymes can act coupled with NAD or NADP.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- act when coupled with either NAD or NADPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“Both can act when coupled with either NAD or NADP”
Claim · model-written summary
Na(2)SO(4) salinity did not affect the malate dehydrogenase pattern in pea root tips.
- Taxon
- PeaLathyrus oleraceust0
- Organ / stage
- root tipse0
- Treatment
- Na(2)SO(4) salinated mediume0
- Outcome
- pattern of the malate dehydrogenasese0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“Growing plants in Na(2)SO(4) salinated medium did not affect the pattern of the malate dehydrogenases in the root tips”
Claim · model-written summary
NaCl salinity induced a third cytoplasmic isoenzyme in pea roots.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- NaCl salinated mediae0
- Outcome
- appearance of a new, third isoenzymee0
- Qualifier
- cytoplasmic fractione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“Growing plants in NaCl salinated media resulted in the appearance of a new, third isoenzyme. This new isoenzyme was located in the cytoplasmic fraction”
Claim · model-written summary
Both salinity types increased NADP coupled mitochondrial malate dehydrogenase activity.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Salinity of both typese0
- Outcome
- NADP coupled activity of the mitochondrial malate dehydrogenasee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“Salinity of both types, when present in growth medium, induced increases in the NADP coupled activity of the mitochondrial malate dehydrogenase”
Claim · model-written summary
Salinity depressed NAD coupled activity except in the cytoplasmic fraction under NaCl at one atmosphere.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- NaCl to 1 atmospheree0
- Outcome
- NAD coupled activitye0
- Direction
- depressede0
- Qualifier
- except in the cytoplasmic fractione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“The NAD coupled activity, however, was depressed except in the cytoplasmic fraction of plants grown in media salinated with NaCl to 1 atmosphere”
Claim · model-written summary
Adding either salt directly to assays did not significantly affect enzymes from unsalinated plants.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Addition of either of the salts to assay mediae0
- Outcome
- enzymese0
- Direction
- did not have any significant effecte0
- Comparator
- non salinated substratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea Roots”
e0“Addition of either of the salts to assay media of enzymes, isolated from plants grown in non salinated substrate, did not have any significant effect”
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See all 6 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.