Abstract
Sodium nitroprusside (SNP) and hydrogen peroxide (H 2 O 2 ) , as priming agents, have the well‐recorded property to increase plant tolerance against a range of different abiotic stresses such as salinity. In this regard, the present study was conducted to evaluate the effect of different levels of SNP (100 and 200 µM) and H 2 O 2 (2.5 and 5 mM) as well as their combinations under salt stress (0 and 50 mM NaCl) on key physiological and biochemical attributes of the economically important aromatic plant basil ( Ocimum basilicum L.) grown under hydroponic culture. Results revealed that morphological parameters such as plant height, root length, leaf fresh and dry weights (FW and DW) were significantly decreased by salinity stress, while SNP and H 2 O 2 treatments, alone or combined, increased FW and DW thus enhancing plant tolerance to salt stress. Furthermore, 200 µM SNP + 2.5 mM H 2 O 2 appeared to be the most effective treatment by causing significant increase in chlorophyll a and b , anthocyanin content and guaiacol peroxidase and ascorbate peroxidase enzymes activities under saline condition. In addition, analytical measurements showed that essential oil profile (concentration of main components) under salt stress was mostly affected by SNP and H 2 O 2 treatments. The highest increase was observed for methyl chavicol (43.09–69.91%), linalool (4.8–17.9%), cadinol (1.5–3.2%) and epi‐α‐cadinol (0.18–10.75%) compounds. In conclusion, current findings demonstrated a positive crosstalk between SNP and H 2 O 2 toward improved basil plant tolerance to salt stress, linked with regulation of essential oil composition.
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Claims 9
Claim · model-written summary
Salinity decreased plant height, root length, and leaf fresh and dry weights.
- Taxon
- basil
Ocimum basilicumt0 - Treatment
- salinity stresse0
- Outcome
- plant height, root length, leaf fresh and dry weightse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“morphological parameters such as plant height, root length, leaf fresh and dry weights (FW and DW) were significantly decreased by salinity stress”
t0“Ocimum basilicum L.”
Claim · model-written summary
SNP and hydrogen peroxide, separately or combined, increased leaf fresh and dry weights under salt stress.
- Taxon
- basilOcimum basilicumt0
- Treatment
- SNP and H 2 O 2 treatments, alone or combinede0
- Outcome
- FW and DWe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP and H 2 O 2 treatments, alone or combined, increased FW and DW thus enhancing plant tolerance to salt stress.”
t0“Ocimum basilicum L.”
Claim · model-written summary
The combined 200 µM SNP and 2.5 mM hydrogen peroxide treatment increased chlorophyll and anthocyanin under salinity.
- Taxon
- basilOcimum basilicumt0
- Treatment
- 200 µM SNP + 2.5 mM H 2 O 2e0
- Outcome
- chlorophyll a and b , anthocyanin contente0
- Direction
- increasee0
- Qualifier
- under saline conditione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“200 µM SNP + 2.5 mM H 2 O 2 appeared to be the most effective treatment by causing significant increase in chlorophyll a and b , anthocyanin content and guaiacol peroxidase and ascorbate peroxidase enzymes activities under saline condition.”
t0“Ocimum basilicum L.”
Claim · model-written summary
The combined treatment increased guaiacol and ascorbate peroxidase activities under salinity.
- Taxon
- basilOcimum basilicumt0
- Treatment
- 200 µM SNP + 2.5 mM H 2 O 2e0
- Outcome
- guaiacol peroxidase and ascorbate peroxidase enzymes activitiese0
- Direction
- increasee0
- Qualifier
- under saline conditione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“200 µM SNP + 2.5 mM H 2 O 2 appeared to be the most effective treatment by causing significant increase in chlorophyll a and b , anthocyanin content and guaiacol peroxidase and ascorbate peroxidase enzymes activities under saline condition.”
t0“Ocimum basilicum L.”
Claim · model-written summary
SNP and hydrogen peroxide affected the essential oil profile under salt stress.
- Taxon
- basilOcimum basilicumt0
- Treatment
- SNP and H 2 O 2 treatmentse0
- Outcome
- essential oil profilee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oil profile (concentration of main components) under salt stress was mostly affected by SNP and H 2 O 2 treatments.”
t0“Ocimum basilicum L.”
Claim · model-written summary
Methyl chavicol increased from 43.09 to 69.91%.
- Taxon
- basilOcimum basilicumt0
- Outcome
- methyl chavicole0
- Direction
- increasee0
- Value
- 43.09–69.91%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest increase was observed for methyl chavicol (43.09–69.91%)”
t0“Ocimum basilicum L.”
Claim · model-written summary
Linalool increased from 4.8 to 17.9%.
- Taxon
- basilOcimum basilicumt0
- Outcome
- linaloole0
- Value
- 4.8–17.9%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“linalool (4.8–17.9%)”
t0“Ocimum basilicum L.”
Claim · model-written summary
Cadinol increased from 1.5 to 3.2%.
- Taxon
- basilOcimum basilicumt0
- Outcome
- cadinole0
- Value
- 1.5–3.2%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cadinol (1.5–3.2%)”
t0“Ocimum basilicum L.”
Claim · model-written summary
Epi-alpha-cadinol increased from 0.18 to 10.75%.
- Taxon
- basilOcimum basilicumt0
- Outcome
- epi‐α‐cadinole0
- Value
- 0.18–10.75%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“epi‐α‐cadinol (0.18–10.75%)”
t0“Ocimum basilicum L.”
The same questions in other papers
salinity · growth · Ocimum basilicum (basil)Results differ
34 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
33 papers more in this group
See all 37 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.