Abstract
Heavy metal contamination in soil is an important environmental problem and it has negative effect on agriculture. Bacteria play a major role in phytoremediation of heavy metals contaminated soil. In this study, the effect of Bacillus licheniformis NCCP-59, a halophilic bacterium isolated from salt mines near Karak, Pakistan, were determined on a three week old greenhouse grown seedling and germinating seeds of two rice varieties (Basmati-385 (B-385) and KSK-282) in soil contaminated with different concentrations (0, 100, 250, 500, and 1000 ppm) of Nickel. Nickel significantly reduced the germination rate and germination percentage mainly at 500 and 1000 ppm. Significant decrease in ion contents (Na, K, and Ca) was observed while Ni ion concentration in the plant tissues increases as the concentration of Ni applied increases. The photosynthetic pigments (chlorophyll a (chl a), chlorophyll b (chl b), and carotenoids) were also decreased by the application of different concentrations of Ni. Total protein and organic nitrogen were found to be reduced at higher concentrations of Nickel. Inoculation of Bacillus licheniformis NCCP-59 improved seed germination and biochemical attribute of the plant under Ni stress. It is clear from the results that the Bacillus Licheniformis NCCP-59 strain has the ability to protect the plants from the toxic effects of nickel and can be used for the phytoremediation of Ni contaminated soil.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Nickel reduced rice germination rate significantly, mainly at 500 and 1000 ppm.
- Taxon
- Rice
Oryza sativat0 - Treatment
- Nickele0
- Outcome
- germination ratee0
- Direction
- reducede0
- Qualifier
- mainly at 500 and 1000 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nickel significantly reduced the germination rate and germination percentage mainly at 500 and 1000 ppm.”
t0“Rice”
Claim · model-written summary
Nickel reduced rice germination percentage significantly, mainly at 500 and 1000 ppm.
- Taxon
- RiceOryza sativat0
- Treatment
- Nickele0
- Outcome
- germination percentagee0
- Direction
- reducede0
- Qualifier
- mainly at 500 and 1000 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nickel significantly reduced the germination rate and germination percentage mainly at 500 and 1000 ppm.”
t0“Rice”
Claim · model-written summary
Nickel application decreased plant Na, K, and Ca contents significantly.
- Taxon
- RiceOryza sativat0
- Treatment
- Ni appliede0
- Outcome
- ion contents (Na, K, and Ca)e0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant decrease in ion contents (Na, K, and Ca) was observed while Ni ion concentration in the plant tissues increases as the concentration of Ni applied increases.”
t0“Rice”
Claim · model-written summary
Plant tissue Ni concentration increased with applied Ni concentration.
- Taxon
- RiceOryza sativat0
- Treatment
- Ni appliede0
- Outcome
- Ni ion concentration in the plant tissuese0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ni ion concentration in the plant tissues increases as the concentration of Ni applied increases.”
t0“Rice”
Claim · model-written summary
Nickel decreased chlorophyll a, chlorophyll b, and carotenoids.
- Taxon
- RiceOryza sativat0
- Treatment
- application of different concentrations of Nie0
- Outcome
- chlorophyll a (chl a), chlorophyll b (chl b), and carotenoidse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The photosynthetic pigments (chlorophyll a (chl a), chlorophyll b (chl b), and carotenoids) were also decreased by the application of different concentrations of Ni.”
t0“Rice”
Claim · model-written summary
High nickel reduced total protein and organic nitrogen.
- Taxon
- RiceOryza sativat0
- Treatment
- higher concentrations of Nickele0
- Outcome
- Total protein and organic nitrogene0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total protein and organic nitrogen were found to be reduced at higher concentrations of Nickel.”
t0“Rice”
Claim · model-written summary
Bacillus inoculation improved rice seed germination under Ni stress.
- Taxon
- RiceOryza sativat0
- Treatment
- Inoculation of Bacillus licheniformis NCCP-59e0
- Interactor
- Bacillus licheniformis NCCP-59
Bacillus licheniformise0symbiont - Outcome
- seed germinatione0
- Direction
- improvede0
- Qualifier
- under Ni stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation of Bacillus licheniformis NCCP-59 improved seed germination and biochemical attribute of the plant under Ni stress.”
t0“Rice”
Claim · model-written summary
Bacillus inoculation improved rice biochemical attributes under Ni stress.
- Taxon
- RiceOryza sativat0
- Treatment
- Inoculation of Bacillus licheniformis NCCP-59e0
- Interactor
- Bacillus licheniformis NCCP-59Bacillus licheniformise0symbiont
- Outcome
- biochemical attribute of the plante0
- Direction
- improvede0
- Qualifier
- under Ni stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation of Bacillus licheniformis NCCP-59 improved seed germination and biochemical attribute of the plant under Ni stress.”
t0“Rice”
Claim · model-written summary
Authors conclude Bacillus strain can protect rice from Ni toxicity and support phytoremediation.
- Taxon
- RiceOryza sativat0
- Interactor
- Bacillus Licheniformis NCCP-59e0symbiont
- Outcome
- protect the plants from the toxic effects of nickele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is clear from the results that the Bacillus Licheniformis NCCP-59 strain has the ability to protect the plants from the toxic effects of nickel and can be used for the phytoremediation of Ni contaminated soil.”
t0“Rice”
The same questions in other papers
nickel atom · nutrient: content · Oryza sativa (rice)Results differ
5 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
4 papers more in this group
See all 8 papers →nickel atom · growth · Oryza sativa (rice)Results differ
11 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
14 papers more in this group
See all 18 papers →nickel atom · quality: protein · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- positive
nickel atom · physiology: pigments · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- negative
Bacillus licheniformis · growth · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
inoculation · growth · Oryza sativa (rice)Positive and negative results
361 papers in the same direction as this paper · 34 in the opposite direction · 3 reporting no difference from an alternative
- positive
- no effect
- negative
395 papers more in this group
See all 399 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.