Paper · 2007 · PubMed

Response of wheat seed germination and seedling growth under copper stress.

Dharam Singh; Kamlesh Nath; Yogesh Kumar Sharma

18
claims
41
verbatim quotes
121
citations
1
research areas
—
Not open access

Abstract

The experiment was performed to study the seed germination and seedling growth in wheat under the influence of different concentrations of copper. The germination %, plumule and radicle length, and number of lateral roots decreased with increase in copper concentration (5, 25, 50 and 100 mgl(-1)). Total chlorophyll contents declined on 14th day from 1.605 of control to 1.581, 1.242, 1.275 and 1.107 mg g(-1) fresh weight in respective treatments. Similarly, on 21st day the decline in total chlorophyll contents was 1.288, 1.123, 1.077 and 0.985 mg g(-1) fresh weight in respective treatments against 1.724 of control. Likewise the pheophytin contents also declined showing the same pattern. However, carotenoid contents increased in different treatments, ranging between 0.366 to 0.464 mg g(-1) fresh weight in comparison to control (0.328) on 14th day, but showed adverse effects on 21st day as the carotenoid contents decreased in different copper treatments. The activity of amylase was found to be gradually reduced 14th day from 29.73 of control to 27.80, 27.33, 21.86 and 20.00 mg g(-1) and at 21st day from 14.40 of control to 11.46, 11.01, 9.86 and 5.60 mg g(-1) fresh weight with increase in concentrations of copper The catalase activity increased 14th day from 97.33 of control to 134.66, 161.33, 216.00 and 232.00 and on 21st day from 140.00 of control to 245.33, 274.66, 278.66 and 300.66 ml H2O2 hydrolyzed/g fresh weight in different increased concentrations of copper Similarly the peroxidase activity was also increased with increase in copper concentration. Likewise fresh weight and moisture contents decreased with increase in copper concentration. The dry weight was increased with increase in concentration of copper treatment. Total protein contents were initially decreased on 14th day from 80.69 of control to 66.75, 60.41, 56.41 and 48.48 microg/mg and on 21st day 81.37 of control to 67.06, 62.31, 54.92 and 46.47 microg/mg fresh weight in different copper concentrations respectively Sugar contents were significantly decreased in all the doses of copper on both 14th and 21st days i.e. (5.53 of control to 4.76, 3.69, 3.68 and 2.86 microg/mg in different copper treatments on 14th day and 4.81 of control to 4.49, 3.40, 2.79 and 2.15 microg/mg on 21st day respectively.

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Claims 18

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress decreased germination percentage, plumule length and radicle length of wheat.

Treatment
copper stresst0
Outcome
germination %, plumule and radicle lengthe1
Direction
decreasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e1

“The germination %, plumule and radicle length, and number of lateral roots decreased with increase in copper concentration (5, 25, 50 and 100 mgl(-1))”

✓ located verbatim in the source · abstract, characters 147–297 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress decreased the number of lateral roots of wheat seedlings.

Treatment
copper stresst0
Outcome
number of lateral rootse1
Direction
decreasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e1

“The germination %, plumule and radicle length, and number of lateral roots decreased with increase in copper concentration (5, 25, 50 and 100 mgl(-1))”

✓ located verbatim in the source · abstract, characters 147–297 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress lowered total chlorophyll content of wheat on day 14, from 1.605 in the control to 1.107 to 1.581 mg g(-1) fresh weight.

Treatment
copper stresst0
Outcome
total chlorophyll contentse2
Direction
declinede2
Value
1.581, 1.242, 1.275 and 1.107 mg g(-1) fresh weighte2
Qualifier
14th daye2
Comparator
controle2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e2

“Total chlorophyll contents declined on 14th day from 1.605 of control to 1.581, 1.242, 1.275 and 1.107 mg g(-1) fresh weight in respective treatments”

✓ located verbatim in the source · abstract, characters 299–448 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress lowered total chlorophyll content of wheat on day 21, from 1.724 in the control to 0.985 to 1.288 mg g(-1) fresh weight.

Treatment
copper stresst0
Outcome
total chlorophyll contentse3
Direction
declinee3
Value
1.288, 1.123, 1.077 and 0.985 mg g(-1) fresh weighte3
Qualifier
21st daye3
Comparator
controle3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e3

“Similarly, on 21st day the decline in total chlorophyll contents was 1.288, 1.123, 1.077 and 0.985 mg g(-1) fresh weight in respective treatments against 1.724 of control”

✓ located verbatim in the source · abstract, characters 450–620 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress also lowered pheophytin content of wheat, showing the same pattern as chlorophyll.

Treatment
copper stresst0
Outcome
pheophytin contentse4
Direction
declinede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e4

“Likewise the pheophytin contents also declined showing the same pattern”

✓ located verbatim in the source · abstract, characters 622–693 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress increased carotenoid content of wheat on day 14, relative to the control.

Treatment
copper stresst0
Outcome
carotenoid contentse5
Direction
increasede5
Value
0.366 to 0.464 mg g(-1) fresh weighte5
Qualifier
14th daye5
Comparator
controle5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e5

“carotenoid contents increased in different treatments, ranging between 0.366 to 0.464 mg g(-1) fresh weight in comparison to control (0.328) on 14th day”

✓ located verbatim in the source · abstract, characters 704–856 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress decreased carotenoid content of wheat on day 21, which the authors describe as an adverse effect.

Treatment
copper stresst0
Outcome
carotenoid contentse6
Direction
decreasede6
Qualifier
adverse effects on 21st daye6

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e6

“showed adverse effects on 21st day as the carotenoid contents decreased in different copper treatments”

✓ located verbatim in the source · abstract, characters 862–964 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress reduced amylase activity in wheat on day 14, from 29.73 in the control to 20.00 to 27.80 mg g(-1).

Treatment
copper stresst0
Outcome
activity of amylasee7
Direction
reducede7
Value
27.80, 27.33, 21.86 and 20.00 mg g(-1)e7
Qualifier
14th daye7
Comparator
controle7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e7

“The activity of amylase was found to be gradually reduced 14th day from 29.73 of control to 27.80, 27.33, 21.86 and 20.00 mg g(-1)”

✓ located verbatim in the source · abstract, characters 966–1096 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress reduced amylase activity in wheat on day 21, from 14.40 in the control to 5.60 to 11.46 mg g(-1).

Treatment
copper stresst0
Outcome
activity of amylasee7
Direction
reducede7
Value
11.46, 11.01, 9.86 and 5.60 mg g(-1)e6
Qualifier
21st daye6
Comparator
controle6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e7

“The activity of amylase was found to be gradually reduced 14th day from 29.73 of control to 27.80, 27.33, 21.86 and 20.00 mg g(-1)”

✓ located verbatim in the source · abstract, characters 966–1096 · show in text ↑
e6

“and at 21st day from 14.40 of control to 11.46, 11.01, 9.86 and 5.60 mg g(-1) fresh weight with increase in concentrations of copper”

✓ located verbatim in the source · abstract, characters 1097–1229 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress increased catalase activity in wheat on day 14, from 97.33 in the control to 134.66 to 232.00.

Treatment
copper stresst0
Outcome
catalase activitye0
Direction
increasede0
Value
134.66, 161.33, 216.00 and 232.00e0
Qualifier
14th daye0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“The catalase activity increased 14th day from 97.33 of control to 134.66, 161.33, 216.00 and 232.00”

✓ located verbatim in the source · abstract, characters 1230–1329 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress increased catalase activity in wheat on day 21, from 140.00 in the control to 245.33 to 300.66 ml H2O2 hydrolyzed/g fresh weight.

Treatment
copper stresst0
Outcome
catalase activitye0
Direction
increasede0
Value
245.33, 274.66, 278.66 and 300.66 ml H2O2 hydrolyzed/g fresh weighte1
Qualifier
21st daye1
Comparator
controle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“The catalase activity increased 14th day from 97.33 of control to 134.66, 161.33, 216.00 and 232.00”

✓ located verbatim in the source · abstract, characters 1230–1329 · show in text ↑
e1

“and on 21st day from 140.00 of control to 245.33, 274.66, 278.66 and 300.66 ml H2O2 hydrolyzed/g fresh weight”

✓ located verbatim in the source · abstract, characters 1330–1439 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress increased peroxidase activity in wheat.

Treatment
copper stresst0
Outcome
peroxidase activitye0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“Similarly the peroxidase activity was also increased with increase in copper concentration”

✓ located verbatim in the source · abstract, characters 1488–1578 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress decreased fresh weight and moisture content of wheat seedlings.

Treatment
copper stresst0
Outcome
fresh weight and moisture contentse0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“Likewise fresh weight and moisture contents decreased with increase in copper concentration”

✓ located verbatim in the source · abstract, characters 1580–1671 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Copper stress increased dry weight of wheat seedlings.

Treatment
copper stresst0
Outcome
dry weighte0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“The dry weight was increased with increase in concentration of copper treatment”

✓ located verbatim in the source · abstract, characters 1673–1752 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress decreased total protein content of wheat on day 14, from 80.69 in the control to 48.48 to 66.75 microg/mg.

Treatment
copper stresst0
Outcome
total protein contentse0
Direction
decreasede0
Value
66.75, 60.41, 56.41 and 48.48 microg/mge0
Qualifier
14th daye0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“Total protein contents were initially decreased on 14th day from 80.69 of control to 66.75, 60.41, 56.41 and 48.48 microg/mg”

✓ located verbatim in the source · abstract, characters 1754–1878 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Copper stress lowered total protein content of wheat on day 21, from 81.37 in the control to 46.47 to 67.06 microg/mg.

Treatment
copper stresst0
Outcome
total protein contentse0
Direction
decreaseinferrede1
Value
67.06, 62.31, 54.92 and 46.47 microg/mge1
Qualifier
21st daye1
Comparator
controle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“Total protein contents were initially decreased on 14th day from 80.69 of control to 66.75, 60.41, 56.41 and 48.48 microg/mg”

✓ located verbatim in the source · abstract, characters 1754–1878 · show in text ↑
e1

“and on 21st day 81.37 of control to 67.06, 62.31, 54.92 and 46.47 microg/mg fresh weight in different copper concentrations respectively”

✓ located verbatim in the source · abstract, characters 1879–2015 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Copper stress significantly decreased sugar content of wheat on day 14, from 5.53 in the control to 2.86 to 4.76 microg/mg.

Treatment
copper stresst0
Outcome
sugar contentse0
Direction
decreasede0
Value
4.76, 3.69, 3.68 and 2.86 microg/mge1
Qualifier
14th daye1
Comparator
controle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“Sugar contents were significantly decreased in all the doses of copper on both 14th and 21st days”

✓ located verbatim in the source · abstract, characters 2016–2113 · show in text ↑
e1

“5.53 of control to 4.76, 3.69, 3.68 and 2.86 microg/mg in different copper treatments on 14th day”

✓ located verbatim in the source · abstract, characters 2120–2217 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Copper stress significantly decreased sugar content of wheat on day 21, from 4.81 in the control to 2.15 to 4.49 microg/mg.

Treatment
copper stresst0
Outcome
sugar contentse0
Direction
decreasede0
Value
4.49, 3.40, 2.79 and 2.15 microg/mge1
Qualifier
21st daye1
Comparator
controle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of wheat seed germination and seedling growth under copper stress”

✓ located verbatim in the source · title, characters 0–74 · show in text ↑
e0

“Sugar contents were significantly decreased in all the doses of copper on both 14th and 21st days”

✓ located verbatim in the source · abstract, characters 2016–2113 · show in text ↑
e1

“4.81 of control to 4.49, 3.40, 2.79 and 2.15 microg/mg on 21st day”

✓ located verbatim in the source · abstract, characters 2222–2288 · show in text ↑

heavy metal · growth · Triticum aestivum (wheat)Results differ

53 papers: 8 positive, 45 negative or no effect

44 papers in the same direction as this paper · 8 in the opposite direction

  1. negative
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heavy metal · quality: protein · Triticum aestivum (wheat)Positive and negative results

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heavy metal · physiology: pigments · Triticum aestivum (wheat)Positive and negative results

27 papers: 2 positive, 25 negative or no effect

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heavy metal · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results

34 papers: 6 positive, 28 negative or no effect

27 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
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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.