Abstract
This study investigated the germination response to temperature of seeds of nine Arabidopsis thaliana ecotypes. They are characterized by a similar temperature dependency of seed germination, and 10 °C and 29 °C were found to be suboptimal low and high temperatures for all nine ecotypes, even though they originated from regions with diverse climates. We tested the potential of four PGPR strains from the genera Pseudomonas and Bacillus to stimulate seed germination in the two ecotypes under these suboptimal conditions. Biopriming of seeds with only the biofilm-forming strain Pseudomonas putida KT2440 significantly increased the germination of Cape Verde Islands (Cvi-0) seeds at 10 °C. However, biopriming did not significantly improve the germination of seeds of the widely utilized ecotype Columbia 0 (Col-0) at any of the two tested temperatures. To functionally investigate the role of KT2440’s biofilm formation in the stimulation of seed germination, we used mutants with compromised biofilm-forming abilities. These bacterial mutants had a reduced ability to stimulate the germination of Cvi-0 seeds compared to wild-type KT2440, highlighting the importance of biofilm formation in promoting germination. These findings highlight the potential of PGPR-based biopriming for enhancing seed germination at low temperatures.
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Claims 4
Claim · model-written summary
Ten and 29 °C were suboptimal low and high germination temperatures for all nine Arabidopsis thaliana ecotypes studied.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae0 - Outcome
- suboptimal low and high temperaturese1
- Value
- 10 °C and 29 °Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study investigated the germination response to temperature of seeds of nine Arabidopsis thaliana ecotypes”
e1“They are characterized by a similar temperature dependency of seed germination, and 10 °C and 29 °C were found to be suboptimal low and high temperatures for all nine ecotypes”
Claim · model-written summary
Biopriming with Pseudomonas putida KT2440 significantly increased germination of Cvi-0 seeds at 10 °C.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae0
- Material
- Cape Verde Islands (Cvi-0)e2
- Treatment
- Biopriming of seeds with only the biofilm-forming strain Pseudomonas putida KT2440e2
- Interactor
- Pseudomonas putida KT2440
Pseudomonas putida KT2440e2symbiont - Outcome
- germinatione2
- Direction
- significantly increasede2
- Qualifier
- at 10 °Ce2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study investigated the germination response to temperature of seeds of nine Arabidopsis thaliana ecotypes”
e2“Biopriming of seeds with only the biofilm-forming strain Pseudomonas putida KT2440 significantly increased the germination of Cape Verde Islands (Cvi-0) seeds at 10 °C”
Claim · model-written summary
Biopriming did not significantly improve germination of Col-0 seeds at either tested temperature.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae0
- Material
- Columbia 0 (Col-0)e3
- Treatment
- biopriminge3
- Outcome
- germinatione3
- Direction
- did not significantly improvee3
- Qualifier
- at any of the two tested temperaturese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study investigated the germination response to temperature of seeds of nine Arabidopsis thaliana ecotypes”
e3“However, biopriming did not significantly improve the germination of seeds of the widely utilized ecotype Columbia 0 (Col-0) at any of the two tested temperatures”
Claim · model-written summary
Biofilm-deficient bacterial mutants had a reduced ability to stimulate germination of Cvi-0 seeds compared with wild-type KT2440.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae0
- Material
- Cvi-0e4
- Treatment
- bacterial mutantse4
- Interactor
- KT2440e4symbiont
- Outcome
- ability to stimulate the germinatione4
- Direction
- reducede4
- Comparator
- wild-type KT2440e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study investigated the germination response to temperature of seeds of nine Arabidopsis thaliana ecotypes”
e4“These bacterial mutants had a reduced ability to stimulate the germination of Cvi-0 seeds compared to wild-type KT2440”
The same questions in other papers
Pseudomonas putida · growth · Arabidopsis thaliana (thale cress)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.