Abstract
The aim of this work was to study the impact of high pressure (50 MPa, 10 min) on germination of pea seeds with different imbibition times (0, 12 and 36 h). The parameters analysed were the percentage of germinated seeds, length of roots and stems, number of leaves developed and the weight of young plantlets. Peroxidase (POD), polyphenol oxidase (PPO), pectin methylesterase (PME) and total proteolytic activity were analysed in seeds after the pressure treatment and in leaves after the germination period. Results showed that 50 MPa applied during 10 min retarded the germination onset and inhibited seeds to germinate. The pressure treatment increased and decreased the length of roots and stems, respectively. The number of leaves per germinated seed decreased with the pressure treatment. Enzymatic activities of seeds showed that only total proteolytic activity was significantly reduced by pressure and only for 0 h of imbibition. POD and PPO activities determined in leaves of the plantlets increased with the pressure treatment, while PME activity also increased but only for 12 h of imbibition and total proteolytic activity decreased.
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Claims 10
Claim · model-written summary
High pressure retarded the onset of pea germination.
- Taxon
- pea
Lathyrus oleraceust0 - Treatment
- 50 MPa applied during 10 mine0
- Outcome
- germination onsete0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50 MPa applied during 10 min retarded the germination onset and inhibited seeds to germinate”
t0“pea”
Claim · model-written summary
High pressure inhibited pea seeds from germinating.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- 50 MPa applied during 10 mine0
- Outcome
- seeds to germinatee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50 MPa applied during 10 min retarded the germination onset and inhibited seeds to germinate”
t0“pea”
Claim · model-written summary
Pressure increased root length.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- pressure treatmente0
- Outcome
- length of rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pressure treatment increased and decreased the length of roots and stems, respectively”
t0“pea”
Claim · model-written summary
Pressure decreased stem length.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- pressure treatmente0
- Outcome
- stemse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pressure treatment increased and decreased the length of roots and stems, respectively”
t0“pea”
Claim · model-written summary
Pressure decreased the number of leaves per germinated seed.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- pressure treatmente0
- Outcome
- number of leaves per germinated seede0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of leaves per germinated seed decreased with the pressure treatment”
t0“pea”
Claim · model-written summary
Pressure significantly reduced seed total proteolytic activity at 0 h imbibition.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- pressuree0
- Outcome
- total proteolytic activitye0
- Direction
- reducede0
- Qualifier
- 0 h of imbibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only total proteolytic activity was significantly reduced by pressure and only for 0 h of imbibition”
t0“pea”
Claim · model-written summary
Pressure increased leaf POD activity.
- Taxon
- peaLathyrus oleraceust0
- Organ / stage
- leavese0
- Treatment
- pressure treatmente0
- Outcome
- PODe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“POD and PPO activities determined in leaves of the plantlets increased with the pressure treatment”
t0“pea”
Claim · model-written summary
Pressure increased leaf PPO activity.
- Taxon
- peaLathyrus oleraceust0
- Organ / stage
- leavese0
- Treatment
- pressure treatmente0
- Outcome
- PPOe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“POD and PPO activities determined in leaves of the plantlets increased with the pressure treatment”
t0“pea”
Claim · model-written summary
Pressure increased leaf PME activity only at 12 h imbibition.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- PME activitye0
- Direction
- increasede0
- Qualifier
- 12 h of imbibitione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PME activity also increased but only for 12 h of imbibition”
t0“pea”
Claim · model-written summary
Pressure decreased leaf total proteolytic activity.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- total proteolytic activitye0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total proteolytic activity decreased”
t0“pea”