Abstract
The present study analyses growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply over a wide range of concentrations. Supply of 0 - 5 mM ZnCl2 to 3 days old light grown maize seedlings led to gradually increased accumulation of Zn in the shoot tissue, while in the root tissue substantial increase was observed at/and above 0.1 mM ZnCl2. Zn supply significantly reduced the overall growth of maize seedlings mostly at 1 - 5 mM ZnCl2 exerting strong correlation and the observed effect was more substantial for root tissue. Amongst the biochemical parameters, increase in protein and proline content was more prominent in root tissue than the shoot, while RNA content was reduced in shoot tissue. Zn treatment to light grown seedlings significantly increased the chlorophyll, carotenoid content, while in dark grown seedlings it had marginal/no effect. Delta amino levulinic acid (ALA) content in both the regimes was increased at higher Zn concentrations. Also ALA synthesis was increased in both the regimes, but non significantly. Zn enhanced ALA dehydratase (ALAD) activity of light as well as dark grown seedlings being significant in former. The results demonstrate that the Zn accumulation and growth effect at higher Zn concentrations in maize depend upon the tissue with root as the target site and shoot growth are mainly influenced by ALA and subsequently ALAD in maize seedlings.
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Claims 13
Claim · model-written summary
Zn supply gradually increased Zn accumulation in maize shoot tissue.
- Organ / stage
- shoot tissuee1
- Treatment
- Supply of 0 - 5 mM ZnCl2e1
- Outcome
- accumulation of Zn in the shoot tissuee1
- Direction
- increasede1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e1“Supply of 0 - 5 mM ZnCl2 to 3 days old light grown maize seedlings led to gradually increased accumulation of Zn in the shoot tissue, while in the root tissue substantial increase was observed at/and above 0.1 mM ZnCl2”
Claim · model-written summary
Zn at and above 0.1 mM ZnCl2 caused a substantial increase in Zn accumulation in maize root tissue.
- Organ / stage
- root tissuee1
- Treatment
- ZnCl2e1
- Outcome
- substantial increase was observede1
- Direction
- increasee1
- Qualifier
- at/and above 0.1 mM ZnCl2e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e1“Supply of 0 - 5 mM ZnCl2 to 3 days old light grown maize seedlings led to gradually increased accumulation of Zn in the shoot tissue, while in the root tissue substantial increase was observed at/and above 0.1 mM ZnCl2”
Claim · model-written summary
Zn supply significantly reduced the overall growth of maize seedlings, mostly at 1 - 5 mM ZnCl2.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e2“Zn supply significantly reduced the overall growth of maize seedlings mostly at 1 - 5 mM ZnCl2 exerting strong correlation and the observed effect was more substantial for root tissue”
Claim · model-written summary
The growth effect of Zn supply in maize was more substantial in root tissue than in other tissue.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e2“Zn supply significantly reduced the overall growth of maize seedlings mostly at 1 - 5 mM ZnCl2 exerting strong correlation and the observed effect was more substantial for root tissue”
Claim · model-written summary
Protein and proline content increased more in maize root tissue than in the shoot under Zn supply.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e3“Amongst the biochemical parameters, increase in protein and proline content was more prominent in root tissue than the shoot, while RNA content was reduced in shoot tissue”
Claim · model-written summary
RNA content was reduced in maize shoot tissue under Zn supply.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e3“Amongst the biochemical parameters, increase in protein and proline content was more prominent in root tissue than the shoot, while RNA content was reduced in shoot tissue”
Claim · model-written summary
Zn treatment significantly increased chlorophyll and carotenoid content in light-grown maize seedlings.
- Treatment
- Zn treatmente4
- Outcome
- chlorophyll, carotenoid contente4
- Direction
- increasede4
- Qualifier
- light grown seedlingse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e4“Zn treatment to light grown seedlings significantly increased the chlorophyll, carotenoid content, while in dark grown seedlings it had marginal/no effect”
Claim · model-written summary
Zn treatment had marginal or no effect on chlorophyll and carotenoid content in dark-grown maize seedlings.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e4“Zn treatment to light grown seedlings significantly increased the chlorophyll, carotenoid content, while in dark grown seedlings it had marginal/no effect”
Claim · model-written summary
Delta amino levulinic acid (ALA) content in maize was increased at higher Zn concentrations in both light and dark regimes.
- Treatment
- higher Zn concentrationse5
- Outcome
- Delta amino levulinic acid (ALA) contente5
- Direction
- increasede5
- Qualifier
- in both the regimese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e5“Delta amino levulinic acid (ALA) content in both the regimes was increased at higher Zn concentrations. Also ALA synthesis was increased in both the regimes, but non significantly.”
Claim · model-written summary
ALA synthesis was increased at higher Zn concentrations in both regimes, but not significantly.
- Treatment
- higher Zn concentrationse5
- Outcome
- ALA synthesise5
- Direction
- increasede5
- Qualifier
- non significantlye5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e5“Delta amino levulinic acid (ALA) content in both the regimes was increased at higher Zn concentrations. Also ALA synthesis was increased in both the regimes, but non significantly.”
Claim · model-written summary
Zn enhanced ALA dehydratase (ALAD) activity in light-grown and dark-grown maize seedlings, significant in light-grown ones.
- Treatment
- Zne6
- Gene
- ALA dehydratase (ALAD)e6
- Outcome
- ALA dehydratase (ALAD) activitye6
- Direction
- enhancede6
- Qualifier
- being significant in formere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and chlorophyll biosynthesis in young maize seedlings in response to Zn supply”
e6“Zn enhanced ALA dehydratase (ALAD) activity of light as well as dark grown seedlings being significant in former.”
Claim · model-written summary
Shoot growth of maize seedlings is mainly influenced by ALA and subsequently ALAD.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The results demonstrate that the Zn accumulation and growth effect at higher Zn concentrations in maize depend upon the tissue with root as the target site and shoot growth are mainly influenced by ALA and subsequently ALAD in maize seedlings.”
Claim · model-written summary
The Zn accumulation and growth effect of higher Zn concentrations depends on the tissue, with root as the target site.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The results demonstrate that the Zn accumulation and growth effect at higher Zn concentrations in maize depend upon the tissue with root as the target site and shoot growth are mainly influenced by ALA and subsequently ALAD in maize seedlings.”
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