Abstract
Phosphatases are widely found in plants having intracellular and extracellular activities. Phosphatases are believed to be important for phosphorous scavenging and remobilization in plants, but its role in adaptation to abiotic stresses and growth hormones at germination level has not been critically evaluated. To address this issue, the effect of ABA, GA3, NaCl and drought on germination, growth, acid and alkaline phosphatases in sorghum embryos and endosperm was investigated. Germination decreased markedly under ABA, NaCl and drought treatments. Subsequently, a remarkable decrease in fresh weight and dry weight was observed in embryos under ABA and NaCl treatments, whereas a significant decrease in endosperm fresh weight was observed only under drought stress. However, no significant change in endosperm dry weight was observed under other any treatment. Furthermore, a considerable increase in acid phosphatse activity was observed in embryos under bicolor and NaCl treatments, however, alkaline phosphatase activity was substantially higher under all treatments. In endosperm, a significant increase in acid phosphatase activity was observed under ABA and NaCl treatments. Alkaline phosphatse activity was apparently higher under GA3. However, no substantial changes in acid or alkaline phosphatase activities were observed after drought treatments. These findings suggest that changes in the phosphatase enzymes might play important roles in adaptation of germinating seeds, to changing environmental conditions. Based upon these results, a possible physiological role of phosphatases in germinating sorghum seeds is discussed.
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Claims 10
Claim · model-written summary
Germination decreased markedly under ABA, NaCl and drought treatments.
- Taxon
- Sorghum bicolor
Sorghum bicolort0 - Treatment
- ABA, NaCl and droughte0
- Outcome
- Germinatione0
- Direction
- decreasede0
- Qualifier
- markedlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e0“Germination decreased markedly under ABA, NaCl and drought treatments”
Claim · model-written summary
Fresh and dry weight of embryos decreased under ABA and NaCl treatments.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Organ / stage
- embryose1
- Treatment
- ABA and NaCle1
- Outcome
- fresh weight and dry weighte1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e1“a remarkable decrease in fresh weight and dry weight was observed in embryos under ABA and NaCl treatments”
Claim · model-written summary
Endosperm fresh weight decreased significantly, and only under drought stress.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Organ / stage
- endosperme2
- Treatment
- drought stresse2
- Outcome
- fresh weighte2
- Direction
- decreasee2
- Qualifier
- only under drought stresse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e2“a significant decrease in endosperm fresh weight was observed only under drought stress”
Claim · model-written summary
Endosperm dry weight showed no significant change under the other treatments.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Organ / stage
- endosperme3
- Treatment
- other any treatmente3
- Outcome
- dry weighte3
- Direction
- no significant changee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e3“no significant change in endosperm dry weight was observed under other any treatment”
Claim · model-written summary
Acid phosphatase activity increased in embryos under NaCl.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Organ / stage
- embryose4
- Treatment
- NaCle4
- Outcome
- acid phosphatse activitye4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e4“a considerable increase in acid phosphatse activity was observed in embryos under bicolor and NaCl treatments”
Claim · model-written summary
Alkaline phosphatase activity was substantially higher under all treatments.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- all treatmentse5
- Outcome
- alkaline phosphatase activitye5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e5“alkaline phosphatase activity was substantially higher under all treatments”
Claim · model-written summary
Acid phosphatase activity increased significantly in endosperm under ABA and NaCl.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Organ / stage
- endosperme6
- Treatment
- ABA and NaCle6
- Outcome
- acid phosphatase activitye6
- Direction
- increasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e6“In endosperm, a significant increase in acid phosphatase activity was observed under ABA and NaCl treatments”
Claim · model-written summary
Alkaline phosphatase activity was apparently higher under GA3.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- GA3e7
- Outcome
- Alkaline phosphatse activitye7
- Direction
- highere7
- Qualifier
- apparentlye7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e7“Alkaline phosphatse activity was apparently higher under GA3”
Claim · model-written summary
Acid and alkaline phosphatase activities showed no substantial change after drought.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- drought treatmentse7
- Outcome
- acid or alkaline phosphatase activitiese7
- Direction
- no substantial changese7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e7“However, no substantial changes in acid or alkaline phosphatase activities were observed after drought treatments”
Claim · model-written summary
Changes in phosphatase enzymes might play a role in the adaptation of germinating sorghum seeds to changing environments.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Outcome
- adaptation of germinating seedse7
- Qualifier
- changes in the phosphatase enzymese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor (L.) Moench seeds”
e7“changes in the phosphatase enzymes might play important roles in adaptation of germinating seeds”
The same questions in other papers
(+)-abscisic acid · growth · Sorghum bicolor (sorghum)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
drought · growth · Sorghum bicolor (sorghum)Positive and negative results
23 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 papers →drought · physiology: enzyme activity · Sorghum bicolor (sorghum)Results agree
2 papers in the same direction as this paper
- no effect
- no effect
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.