Abstract
In present study Bacillus spp. screened for drought tolerance could tolerate minimal water potential (-0.73 MPa) were evaluated for plant growth promoting properties at –0.73 MPa. Drought stress affected growth of isolates as indicated by increased intracellular free amino acids, proline, total soluble sugars, and exopolysaccharides. Drought-tolerant Bacillus spp. HYD-B17, HYTAPB18, HYDGRFB19, BKB30, RMPB44 identified as Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus thuringiensis, Paenibacillus favisporus, Bacillus subtilis based on 16S rDNA gene sequence were used to study the effect of inoculation on growth, osmolytes, antioxidant status. Inoculation increased plant biomass, relative water content, leaf water potential, root adhering soil/root tissue ratio, aggregate stability, decreasing leaf water loss. Bacillus spp. effect on osmoregulation increased proline, sugars, free amino acids and decreased electrolyte leakage. Inoculation reduced the activity of antioxidant enzymes ascorbate peroxidase, catalase, glutathione peroxidase. As a result, Bacillus spp. inoculated maize seedlings showed physiological response that could alleviate drought stress negative effects.
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Claims 9
Claim · model-written summary
Drought stress increased intracellular free amino acids, proline and total soluble sugars in the Bacillus isolates.
- Taxon
- Bacillus spp.e0
- Treatment
- Drought stresse1
- Outcome
- intracellular free amino acids, proline, total soluble sugarse1
- Direction
- increasede1
Not reportedComparator
Verbatim
e0“Drought-tolerant Bacillus spp.”
e1“Drought stress affected growth of isolates as indicated by increased intracellular free amino acids, proline, total soluble sugars”
Claim · model-written summary
Drought stress increased exopolysaccharides in the Bacillus isolates.
Not reportedComparator
Verbatim
e0“Drought-tolerant Bacillus spp.”
e1“Drought stress affected growth of isolates as indicated by increased intracellular free amino acids, proline, total soluble sugars, and exopolysaccharides”
Claim · model-written summary
Inoculation with Bacillus spp. increased plant biomass, relative water content and leaf water potential of maize under drought stress.
- Treatment
- Inoculatione1
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- plant biomass, relative water content, leaf water potentiale1
- Direction
- increasede1
- Qualifier
- drought stresst0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize under drought stress”
e0“Drought-tolerant Bacillus spp.”
e1“Inoculation increased plant biomass, relative water content, leaf water potential”
Claim · model-written summary
Inoculation with Bacillus spp. increased the root adhering soil/root tissue ratio and aggregate stability in maize under drought stress.
- Treatment
- Inoculatione1
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- root adhering soil/root tissue ratio, aggregate stabilitye1
- Direction
- increasede1
- Qualifier
- drought stresst0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize under drought stress”
e0“Drought-tolerant Bacillus spp.”
e1“Inoculation increased plant biomass, relative water content, leaf water potential, root adhering soil/root tissue ratio, aggregate stability”
Claim · model-written summary
Inoculation with Bacillus spp. decreased leaf water loss in maize under drought stress.
- Treatment
- Inoculatione1
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- leaf water losse2
- Direction
- decreasinge2
- Qualifier
- drought stresst0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize under drought stress”
e0“Drought-tolerant Bacillus spp.”
e1“Inoculation increased plant biomass”
e2“decreasing leaf water loss”
Claim · model-written summary
Bacillus spp. increased proline, sugars and free amino acids through an effect on osmoregulation in maize under drought stress.
- Treatment
- Bacillus spp.e0
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- proline, sugars, free amino acidse0
- Direction
- increasede0
- Qualifier
- drought stresst0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize under drought stress”
e0“Bacillus spp. effect on osmoregulation increased proline, sugars, free amino acids”
Claim · model-written summary
Bacillus spp. decreased electrolyte leakage in maize under drought stress.
- Treatment
- Bacillus spp.e0
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- electrolyte leakagee0
- Direction
- decreasede0
- Qualifier
- drought stresst0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize under drought stress”
e0“Bacillus spp. effect on osmoregulation increased proline, sugars, free amino acids and decreased electrolyte leakage”
Claim · model-written summary
Inoculation reduced the activity of the antioxidant enzymes ascorbate peroxidase, catalase and glutathione peroxidase in maize under drought stress.
- Treatment
- Inoculatione1
- Interactor
- Bacillus spp.e0symbiont
- Gene
- ascorbate peroxidase, catalase, glutathione peroxidasee1
- Outcome
- activity of antioxidant enzymese1
- Direction
- reducede1
- Qualifier
- drought stresst0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize under drought stress”
e0“Drought-tolerant Bacillus spp.”
e1“Inoculation reduced the activity of antioxidant enzymes ascorbate peroxidase, catalase, glutathione peroxidase”
Claim · model-written summary
The authors conclude that Bacillus-inoculated maize seedlings showed a physiological response that could alleviate the negative effects of drought stress.
- Treatment
- Bacillus spp. inoculatede0
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- drought stress negative effectse0
- Qualifier
- physiological responsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus spp. inoculated maize seedlings showed physiological response that could alleviate drought stress negative effects”
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See all 31 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.