Abstract
Natural priming promotes fast and synchronic seed germination and enhances the establishment of seedlings from Wigandia urens seeds. In this study, seeds of this species were buried in the field in three different sites, and each site was divided into three different microsites (natural priming). They were then exhumed and air‐dried at the beginning of the rainy season. The control and exhumed W. urens seeds were tested for differences in germination, and in the protein patterns derived from heat‐stable and phospho‐protein enriched fractions, sucrose concentrations, amylase isoenzyme patterns, as well as catalase activity and H 2 O 2 levels. All the exhumed seeds germinated faster and more synchronically than the control seeds. Nevertheless, the germinative pattern showed a microsite effect related to the microenvironmental conditions. Most exhumed samples kept the germinative advantages acquired from the soil during natural priming for 2 years but seeds from the most heterogeneous site (a forest gap) did not. Natural priming also promoted mobilization of 7‐S globulin‐like proteins, solubilization of the 11‐S globulin‐like proteins as well as sucrose consumption before radicle protrusion. Although there were no changes in starch concentration during the germination of either the control or buried seeds, a different isoenzyme amylase pattern was observed. Catalase activity decreased and hydrogen peroxide levels were lower in exhumed seeds during germination. The changes in the protein and sucrose patterns were related to advances in the germinative process acquired during burial. Metabolic advantages were maintained systematically in all seed samples along the 2 years. The ecological significance of natural priming is discussed.
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Claims 14
Claim · model-written summary
Exhumed seeds germinated faster than controls.
- Taxon
- Wigandia urens
Wigandia urenst0 - Outcome
- germinatede0
- Direction
- fastere0
- Comparator
- the control seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the exhumed seeds germinated faster and more synchronically than the control seeds”
t0“Wigandia urens”
Claim · model-written summary
Exhumed seeds germinated more synchronously than controls.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- germinatede0
- Direction
- more synchronicallye0
- Comparator
- the control seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the exhumed seeds germinated faster and more synchronically than the control seeds”
t0“Wigandia urens”
Claim · model-written summary
Germination patterns varied by microsite conditions.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- germinative patterne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germinative pattern showed a microsite effect related to the microenvironmental conditions”
t0“Wigandia urens”
Claim · model-written summary
Most exhumed samples retained germination advantages for two years.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- germinative advantagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most exhumed samples kept the germinative advantages acquired from the soil during natural priming for 2 years”
t0“Wigandia urens”
Claim · model-written summary
Forest gap seeds did not retain the germination advantage.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- germinative advantagese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seeds from the most heterogeneous site (a forest gap) did not”
t0“Wigandia urens”
e1“Most exhumed samples kept the germinative advantages acquired from the soil during natural priming for 2 years”
Claim · model-written summary
Natural priming mobilized 7-S globulin-like proteins.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- mobilization of 7‐S globulin‐like proteinse0
- Direction
- promotede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Natural priming also promoted mobilization of 7‐S globulin‐like proteins, solubilization of the 11‐S globulin‐like proteins as well as sucrose consumption before radicle protrusion”
t0“Wigandia urens”
Claim · model-written summary
Natural priming solubilized 11-S globulin-like proteins.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- solubilization of the 11‐S globulin‐like proteinse0
- Direction
- promotede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Natural priming also promoted mobilization of 7‐S globulin‐like proteins, solubilization of the 11‐S globulin‐like proteins as well as sucrose consumption before radicle protrusion”
t0“Wigandia urens”
Claim · model-written summary
Natural priming promoted sucrose consumption before radicle protrusion.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- sucrose consumptione0
- Direction
- promotede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Natural priming also promoted mobilization of 7‐S globulin‐like proteins, solubilization of the 11‐S globulin‐like proteins as well as sucrose consumption before radicle protrusion”
t0“Wigandia urens”
Claim · model-written summary
Starch concentrations did not change during germination.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- starch concentratione0
- Direction
- no changese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no changes in starch concentration during the germination of either the control or buried seeds”
t0“Wigandia urens”
Claim · model-written summary
Buried seeds had a different amylase isoenzyme pattern.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- isoenzyme amylase patterne0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a different isoenzyme amylase pattern was observed”
t0“Wigandia urens”
Claim · model-written summary
Catalase activity decreased during germination.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- Catalase activitye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Catalase activity decreased and hydrogen peroxide levels were lower in exhumed seeds during germination”
t0“Wigandia urens”
Claim · model-written summary
Exhumed seeds had lower hydrogen peroxide levels during germination.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- hydrogen peroxide levelse0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Catalase activity decreased and hydrogen peroxide levels were lower in exhumed seeds during germination”
t0“Wigandia urens”
Claim · model-written summary
Protein and sucrose changes were related to germination advances acquired during burial.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- advances in the germinative processe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes in the protein and sucrose patterns were related to advances in the germinative process acquired during burial”
t0“Wigandia urens”
Claim · model-written summary
Metabolic advantages remained across seed samples for two years.
- Taxon
- Wigandia urensWigandia urenst0
- Outcome
- Metabolic advantagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metabolic advantages were maintained systematically in all seed samples along the 2 years”
t0“Wigandia urens”