Abstract
The effects of zinc on photosynthetic characteristics in leaves of Brassica oleracea L.Var Italicap were studied with the gas exchange technique,in order to understand the mechanism of improvement of photosynthetic capacity with the application of zinc.The results showed that,compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+). The P_n,G_s and C_i were higher in leaves treated by adding 0.5 mg/L Zn~(2+)than in leaves of control plants. AQY(apparent quantum yield)increased by 12.14%,CE(earboxylation efficiency)by 7.05% in leaves treated by adding 0.5 mg/L Zn~(2+),compared with that in control leaves.It was proposed that zinc could decrease stomatal limitation of photosynthesis in Brassica oleracea L.Vat Italicap leaves and improve the photosyn- thetic capacity by increasing CA activity.
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Claims 7
Claim · model-written summary
Zinc at 0.5 mg/L increased chlorophyll a content by 8.72% relative to control plants.
- Taxon
- Brassica oleracea L.Vat Italicap
Brassica oleraceae0 - Organ / stage
- leavese0
- Treatment
- 0.5 mg/L Zn~(2+)e0
- Outcome
- content of chlae0
- Direction
- increasede0
- Value
- 8.72%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+)”
Claim · model-written summary
Zinc at 0.5 mg/L increased chlorophyll b content by 10.17% relative to control plants.
- Taxon
- Brassica oleracea L.Vat ItalicapBrassica oleraceae0
- Organ / stage
- leavese0
- Treatment
- 0.5 mg/L Zn~(2+)e0
- Outcome
- content of chla and chlbe0
- Direction
- increasede0
- Value
- 10.17%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+)”
Claim · model-written summary
Zinc at 0.5 mg/L increased carbonic anhydrase activity by 152.94% relative to control plants.
- Taxon
- Brassica oleracea L.Vat ItalicapBrassica oleraceae0
- Organ / stage
- leavese0
- Treatment
- 0.5 mg/L Zn~(2+)e0
- Outcome
- CA(carbonic anhydrase) activitye0
- Direction
- increasede0
- Value
- 152.94%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+)”
Claim · model-written summary
Zinc at 0.5 mg/L raised Pn, Gs and Ci in leaves relative to control plants.
- Taxon
- Brassica oleracea L.Vat ItalicapBrassica oleraceae0
- Organ / stage
- leavese1
- Treatment
- 0.5 mg/L Zn~(2+)e1
- Outcome
- P_n,G_s and C_ie1
- Direction
- highere1
- Comparator
- leaves of control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+)”
e1“The P_n,G_s and C_i were higher in leaves treated by adding 0.5 mg/L Zn~(2+)than in leaves of control plants”
Claim · model-written summary
Zinc at 0.5 mg/L increased apparent quantum yield by 12.14% relative to control leaves.
- Taxon
- Brassica oleracea L.Vat ItalicapBrassica oleraceae0
- Organ / stage
- leavese2
- Treatment
- 0.5 mg/L Zn~(2+)e2
- Outcome
- AQY(apparent quantum yield)e2
- Direction
- increasede2
- Value
- 12.14%e2
- Comparator
- control leavese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+)”
e2“AQY(apparent quantum yield)increased by 12.14%,CE(earboxylation efficiency)by 7.05% in leaves treated by adding 0.5 mg/L Zn~(2+),compared with that in control leaves”
Claim · model-written summary
Zinc at 0.5 mg/L increased carboxylation efficiency by 7.05% relative to control leaves.
- Taxon
- Brassica oleracea L.Vat ItalicapBrassica oleraceae0
- Organ / stage
- leavese2
- Treatment
- 0.5 mg/L Zn~(2+)e2
- Outcome
- CE(earboxylation efficiency)e2
- Direction
- increasede2
- Value
- 7.05%e2
- Comparator
- control leavese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control plants,the content of chla and chlb increased by 8.72%,10.17% respectively,and CA(carbonic anhydrase) activity increased by 152.94% in Brassica oleracea L.Vat Italicap leaves treated by adding 0.5 mg/L Zn~(2+)”
e2“AQY(apparent quantum yield)increased by 12.14%,CE(earboxylation efficiency)by 7.05% in leaves treated by adding 0.5 mg/L Zn~(2+),compared with that in control leaves”
Claim · model-written summary
Zinc may decrease stomatal limitation of photosynthesis and improve photosynthetic capacity by increasing CA activity.
- Taxon
- Brassica oleracea L.Vat ItalicapBrassica oleraceae3
- Treatment
- zince3
- Outcome
- stomatal limitation of photosynthesise3
- Qualifier
- increasing CA activitye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“It was proposed that zinc could decrease stomatal limitation of photosynthesis in Brassica oleracea L.Vat Italicap leaves and improve the photosyn- thetic capacity by increasing CA activity”
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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.