Abstract
Accumulated evidence demonstrated the major role of NAC transcription factors in plants response to drought stress. However, there are limited studies on the identification of safflower NAC genes and their functions in response to abiotic stress, i.e., water deficit. In the present study, a total of 85 CtNACs were identified and categorized into 17 subfamilies, and the vast majority of the CtNACs were annotated in biological process. Their promoters contained cis-regulatory elements related to light, hormonal and stress responses, and plant development. Moreover, physiological response of safflower to water deficit was assessed. Plant growth of safflower was downregulated during water deficit. The contents of osmotic adjustment substances (soluble sugar, soluble protein, proline), reactive oxygen species, malondialdehyde, hydrogen peroxide, and antioxidant enzymes activities, i.e., superoxide dismutase, peroxidase, catalase in safflower leaves were enhanced under water deficit. Additionally, the photosynthetic pigments in safflower were decreased during water stress. Moreover, quantitative real-time PCR detection revealed that the expression levels of most CtNACs were upregulated under water deficit, indicating that these genes may involved in the response of safflower to water deficit. These data facilitate the in-depth study of the biological functions of CtNACs and the breeding of drought-tolerant safflower varieties.
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Claims 9
Claim · model-written summary
Eighty-five CtNACs were identified in 17 subfamilies.
- Taxon
- safflower
Carthamus tinctoriust0 - Gene
- CtNACse0
- Outcome
- CtNACs were identified and categorized into 17 subfamiliese0
- Value
- 85 CtNACse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a total of 85 CtNACs were identified and categorized into 17 subfamilies”
t0“safflower”
Claim · model-written summary
Most CtNACs were annotated in biological process.
- Taxon
- safflowerCarthamus tinctoriust0
- Gene
- CtNACse0
- Outcome
- annotated in biological processe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the vast majority of the CtNACs were annotated in biological process.”
t0“safflower”
Claim · model-written summary
CtNAC promoters contained cis-regulatory elements related to light, hormones, stress and development.
- Taxon
- safflowerCarthamus tinctoriust0
- Outcome
- promoters contained cis-regulatory elementse0
- Qualifier
- light, hormonal and stress responses, and plant developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their promoters contained cis-regulatory elements related to light, hormonal and stress responses, and plant development.”
t0“safflower”
Claim · model-written summary
Water deficit reduced safflower growth.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- water deficite0
- Outcome
- Plant growthe0
- Direction
- downregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth of safflower was downregulated during water deficit.”
Claim · model-written summary
Water deficit increased osmotic adjustment substances in safflower leaves.
- Taxon
- safflowerCarthamus tinctoriuse0
- Organ / stage
- leavese0
- Treatment
- water deficite0
- Outcome
- osmotic adjustment substances (soluble sugar, soluble protein, proline)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contents of osmotic adjustment substances (soluble sugar, soluble protein, proline), reactive oxygen species, malondialdehyde, hydrogen peroxide, and antioxidant enzymes activities, i.e., superoxide dismutase, peroxidase, catalase in safflower leaves were enhanced under water deficit.”
Claim · model-written summary
Water deficit increased reactive oxygen species, malondialdehyde and hydrogen peroxide in safflower leaves.
- Taxon
- safflowerCarthamus tinctoriuse0
- Organ / stage
- leavese0
- Treatment
- water deficite0
- Outcome
- reactive oxygen species, malondialdehyde, hydrogen peroxidee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contents of osmotic adjustment substances (soluble sugar, soluble protein, proline), reactive oxygen species, malondialdehyde, hydrogen peroxide, and antioxidant enzymes activities, i.e., superoxide dismutase, peroxidase, catalase in safflower leaves were enhanced under water deficit.”
Claim · model-written summary
Water deficit increased SOD, peroxidase and catalase activities in safflower leaves.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- water deficite0
- Gene
- superoxide dismutase, peroxidase, catalasee0
- Outcome
- antioxidant enzymes activitiese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant enzymes activities, i.e., superoxide dismutase, peroxidase, catalase in safflower leaves were enhanced under water deficit.”
Claim · model-written summary
Photosynthetic pigments decreased during safflower water stress.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- water stresse0
- Outcome
- photosynthetic pigmentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photosynthetic pigments in safflower were decreased during water stress.”
Claim · model-written summary
Most CtNAC expression levels increased under water deficit.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- water deficite0
- Gene
- CtNACse0
- Outcome
- expression levels of most CtNACse0
- Direction
- upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression levels of most CtNACs were upregulated under water deficit”
t0“safflower”
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drought · physiology: photosynthesis · Carthamus tinctorius (safflower)Results agree
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See all 9 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.