Abstract
The aim of this research was to study the effect of plant-growth-promoting bacteria (PGPB) isolated from the drought-tolerant plants camel thorn (Alhagi pseudoalhagi (M.Bieb.) Fisch) and white pigweed (Chenopodium album L.) on wheat (Triticum aestivum L.) plants cv. Lenigradskaya 6, growing under hydroponic conditions and osmotic stress (generated by 12% polyethylene glycol-6000 (PEG)). Based on the assumption that plants create a unique microbiome that helps them overcome various stresses, we hypothesized that bacteria isolated from drought-tolerant plants may assist cultivated wheat plants in coping with drought stress. PGPB were isolated from seeds and leaves of plants and identified as Bacillus spp. (strains Cap 07D, Cap 09D, and App 11D); Paenibacillus sp. (Cap 286); and Arthrobacter sp. (Cap 03D). All bacteria produced different phytohormones such as indole acetic acid (IAA), abscisic acid (ABA), and gibberellic acid (GAS3) and were capable of stimulating wheat growth under normal and osmotic stress conditions. All PGPB reduced the malondialdehyde (MDA) content, increased the total chlorophyll content by increasing chlorophyll a, and modulated wheat hormone homeostasis and CAT and POX activities under osmotic conditions. Selected strains can be promising candidates for the mitigating of the drought stress of wheat plants.
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Claims 8
Claim · model-written summary
The isolated bacteria produced IAA, ABA and GAS3.
- Taxon
- wheat
Triticum aestivume0 - Outcome
- phytohormones such as indole acetic acid (IAA), abscisic acid (ABA), and gibberellic acid (GAS3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All bacteria produced different phytohormones such as indole acetic acid (IAA), abscisic acid (ABA), and gibberellic acid (GAS3) and were capable of stimulating wheat growth under normal and osmotic stress conditions.”
Claim · model-written summary
The isolated bacteria stimulated wheat growth under normal and osmotic stress conditions.
- Taxon
- wheatTriticum aestivume0
- Treatment
- bacteriae0
- Outcome
- wheat growthe0
- Direction
- stimulatinge0
- Qualifier
- normal and osmotic stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All bacteria produced different phytohormones such as indole acetic acid (IAA), abscisic acid (ABA), and gibberellic acid (GAS3) and were capable of stimulating wheat growth under normal and osmotic stress conditions.”
Claim · model-written summary
PGPB reduced malondialdehyde (MDA) content under osmotic conditions.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PGPBe0
- Interactor
- PGPBe0symbiont
- Outcome
- malondialdehyde (MDA) contente0
- Direction
- reducede0
- Qualifier
- under osmotic conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All PGPB reduced the malondialdehyde (MDA) content, increased the total chlorophyll content by increasing chlorophyll a, and modulated wheat hormone homeostasis and CAT and POX activities under osmotic conditions.”
Claim · model-written summary
PGPB increased total chlorophyll content under osmotic conditions.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PGPBe0
- Interactor
- PGPBe0symbiont
- Outcome
- total chlorophyll contente0
- Direction
- increasede0
- Qualifier
- under osmotic conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All PGPB reduced the malondialdehyde (MDA) content, increased the total chlorophyll content by increasing chlorophyll a, and modulated wheat hormone homeostasis and CAT and POX activities under osmotic conditions.”
Claim · model-written summary
PGPB increasing chlorophyll a under osmotic conditions.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PGPBe0
- Interactor
- PGPBe0symbiont
- Outcome
- chlorophyll ae0
- Direction
- increasinge0
- Qualifier
- under osmotic conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All PGPB reduced the malondialdehyde (MDA) content, increased the total chlorophyll content by increasing chlorophyll a, and modulated wheat hormone homeostasis and CAT and POX activities under osmotic conditions.”
Claim · model-written summary
PGPB modulated wheat hormone homeostasis under osmotic conditions.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PGPBe0
- Interactor
- PGPBe0symbiont
- Outcome
- wheat hormone homeostasise0
- Qualifier
- under osmotic conditionse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All PGPB reduced the malondialdehyde (MDA) content, increased the total chlorophyll content by increasing chlorophyll a, and modulated wheat hormone homeostasis and CAT and POX activities under osmotic conditions.”
Claim · model-written summary
PGPB modulated CAT and POX activities under osmotic conditions.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PGPBe0
- Interactor
- PGPBe0symbiont
- Outcome
- CAT and POX activitiese0
- Qualifier
- under osmotic conditionse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All PGPB reduced the malondialdehyde (MDA) content, increased the total chlorophyll content by increasing chlorophyll a, and modulated wheat hormone homeostasis and CAT and POX activities under osmotic conditions.”
Claim · model-written summary
The authors propose selected strains as candidates to mitigate wheat drought stress.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Selected strainse0
- Outcome
- mitigating of the drought stress of wheat plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selected strains can be promising candidates for the mitigating of the drought stress of wheat plants.”
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