Abstract
Certain phosphorous solubilizing (PSB) and phosphorous mineralizing (PMB) bacteria may improve plant growth by improving nutrient availability. The aim of this work was to evaluate the effect of inoculation with two Bacillus spp. strains, 12A and 25A, on wheat seedlings growth. To this aim, a durum and a bread wheat genotype were grown under controlled conditions in a low P compost medium to evaluate: (i) the effect of the bacterial isolates on plant growth and root system architecture; (ii) the expression of two key genes indicative of the P-starvation response and phosphate (Pi) uptake, TaIPS1 and TaPHT1.6-B1. The results showed that 12A Bacillus sp. significantly increased root length, surface area and biomass. Furthermore, an enhanced shoot dry weight and P content were observed. This might be explained by the capacity of strain 12A to produce indole-3-acetic acid (IAA) in addition to P mineralizing and P solubilizing capability. No effect on plant growth was observed for 25A strain. The semi-quantitative gene expression analysis showed an overall lower expression of TaIPS1 in the inoculated plants and highest expression of TaPHT1.6-B1 in 12A inoculated plants. This suggests that Pi-responsive genes might be useful molecular indicators for the effectiveness of PSB and PMB.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
Bacillus sp. strain 12A significantly increased root length, surface area and biomass of wheat seedlings.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- 12A Bacillus sp.e0
- Interactor
- Bacillus sp.e0symbiont
- Outcome
- root length, surface area and biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12A Bacillus sp. significantly increased root length, surface area and biomass”
t0“Wheat Seedlings”
Claim · model-written summary
Wheat seedlings showed enhanced shoot dry weight and P content, apparently with strain 12A.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- 12A Bacillus sp.e1
- Interactor
- Bacillus sp.e1symbiont
- Outcome
- shoot dry weight and P contente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furthermore, an enhanced shoot dry weight and P content were observed”
e1“12A Bacillus sp. significantly increased root length, surface area and biomass”
t0“Wheat Seedlings”
Claim · model-written summary
The enhanced shoot dry weight and P content might be explained by strain 12A producing indole-3-acetic acid together with P mineralizing and solubilizing capability.
- Taxon
- WheatTriticum aestivumt0
- Compound
- indole-3-acetic acid (IAA)e0
- Outcome
- enhanced shoot dry weight and P contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furthermore, an enhanced shoot dry weight and P content were observed. This might be explained by the capacity of strain 12A to produce indole-3-acetic acid (IAA)”
t0“Wheat Seedlings”
Claim · model-written summary
Strain 25A had no effect on wheat plant growth.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- 25A straine0
- Interactor
- 25A straine0symbiont
- Outcome
- plant growthe0
- Direction
- No effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No effect on plant growth was observed for 25A strain”
t0“Wheat Seedlings”
Claim · model-written summary
TaIPS1 expression was overall lower in inoculated plants.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an overall lower expression of TaIPS1 in the inoculated plants”
t0“Wheat Seedlings”
Claim · model-written summary
TaPHT1.6-B1 expression was highest in plants inoculated with 12A.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- 12A inoculatede0
- Gene
- TaPHT1.6-B1e0
- Outcome
- expressione0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest expression of TaPHT1.6-B1 in 12A inoculated plants”
t0“Wheat Seedlings”
Claim · model-written summary
Pi-responsive genes might be useful molecular indicators for the effectiveness of phosphate solubilizing and mineralizing bacteria.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- useful molecular indicators for the effectiveness of PSB and PMBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pi-responsive genes might be useful molecular indicators for the effectiveness of PSB and PMB”
t0“Wheat Seedlings”
The same questions in other papers
inoculation · molecular: expression · Triticum aestivum (wheat)Positive and negative results
37 papers in the same direction as this paper · 9 in the opposite direction
- no effect
- no effect
- no effect
43 papers more in this group
See all 47 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.