Abstract
Photosynthetic efficiency and availability of water have a close relationship which determines the growth and development of plants. Drought has a remarkable effect on photosynthetic efficiency by affecting the functioning of Photosystem II (PSII). In this study, two drought genotypes of pearl millet were taken and assessed for photosynthetic performance of PSII (electron transport rate (ETR) and maximum yield) under a simulated drought stress condition. Drought stress caused a gradual downregulation in the chlorophyll content in both genotypes. The elevated content of β-carotene was recorded on the 12th day of the experiment. The photo inactivation of PSII was also assessed in both the genotypes. On the basis of an overall comparison, it is evident that the genotype IP14599 has better adapted to drought than the genotype IP14222. Furthermore, the results were confirmed by the analysis of transcript expression level of two aquaporin candidate genes (PIP2;3 and PIP1;5) and it was found that genotype IP14599 was better to maintain homeostasis by increasing in water channeling and movement in response to drought as compared to IP14222. Therefore, it was confirmed that PIP2; 3 and PIP1;5 gene modulate expression of mRNA to provide tolerance against drought in millet plants.
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Claims 6
Claim · model-written summary
Drought stress gradually reduced chlorophyll content in both pearl millet genotypes.
- Taxon
- pearl millet
Cenchrus americanuse0 - Treatment
- Drought stresse1
- Outcome
- chlorophyll contente1
- Direction
- downregulatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two drought genotypes of pearl millet were taken”
e1“Drought stress caused a gradual downregulation in the chlorophyll content in both genotypes”
Claim · model-written summary
Beta-carotene content was elevated on the 12th day of the drought experiment in pearl millet.
- Taxon
- pearl milletCenchrus americanuse0
- Outcome
- content of β-carotenee2
- Direction
- elevatede2
- Qualifier
- on the 12th day of the experimente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two drought genotypes of pearl millet were taken”
e2“The elevated content of β-carotene was recorded on the 12th day of the experiment”
Claim · model-written summary
Genotype IP14599 is better adapted to drought than genotype IP14222.
- Taxon
- pearl milletCenchrus americanuse0
- Material
- IP14599e3
- Treatment
- droughte3
- Outcome
- adapted to droughte3
- Direction
- bettere3
- Comparator
- IP14222e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two drought genotypes of pearl millet were taken”
e3“the genotype IP14599 has better adapted to drought than the genotype IP14222”
Claim · model-written summary
Transcript expression levels of the aquaporin genes PIP2;3 and PIP1;5 were analysed in pearl millet under drought.
- Taxon
- pearl milletCenchrus americanuse0
- Gene
- PIP2;3 and PIP1;5e4
- Outcome
- transcript expression levele4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two drought genotypes of pearl millet were taken”
e4“the results were confirmed by the analysis of transcript expression level of two aquaporin candidate genes (PIP2;3 and PIP1;5)”
Claim · model-written summary
Genotype IP14599 increased water channeling and movement in response to drought more than IP14222.
- Taxon
- pearl milletCenchrus americanuse0
- Material
- IP14599e5
- Treatment
- droughte5
- Outcome
- water channeling and movemente5
- Direction
- increasinge5
- Comparator
- IP14222e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two drought genotypes of pearl millet were taken”
e5“genotype IP14599 was better to maintain homeostasis by increasing in water channeling and movement in response to drought as compared to IP14222”
Claim · model-written summary
PIP2; 3 and PIP1;5 genes may modulate mRNA expression to provide drought tolerance in pearl millet.
- Taxon
- pearl milletCenchrus americanuse0
- Gene
- PIP2; 3 and PIP1;5e6
- Outcome
- tolerance against droughte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two drought genotypes of pearl millet were taken”
e6“PIP2; 3 and PIP1;5 gene modulate expression of mRNA to provide tolerance against drought in millet plants”
The same questions in other papers
drought · physiology: pigments · Cenchrus americanus (pearl millet)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.