Abstract
Osmotic priming treatments reduced both the mean time to germination and the spread of germination for two leek seed-lots of high viability but differing vigour. In addition the differences in germination performance between these two seed-lots was abolished by the priming treatments. In the unprimed seed-lots, differences in germination performance were reflected in differences in rates of protein biosynthesis in leek embryo tissue during germination. Osmopriming treatments abolished these differences upon subsequent germination of osmotically primed seed and furthermore induced high levels of protein biosynthesis in embryo tissue. DNA synthesis was detectable in leek embryos during the priming period in the absence of any cell division and was followed by a five-fold increase in the rate of DNA synthesis in embryo tissue upon germination following priming at which time the rates of DNA synthesis in these leek embryos was significantly greater than that found at any time over the first 4 d of germination in embryos of unprimed leek seeds. The increases in rates of both protein and DNA synthesis observed upon germination of primed seed occurred only after a 6–12 h lag period during which time there is little increase in these rates above those found at the end of priming Analysis of nucleotide and nucleotide sugar levels in leek embryos both during and after priming showed that only traces of GTP and CTP and low levels of ATP and UTP were present in embryos during priming. After a 6 h lag period following the end of priming these levels increased sharply, probably via de novo synthesis. A similar pattern was found for UDP glucose levels during priming and subsequent germination. These results indicate that there is considerable biochemical activity during priming and that the significant benefits in germination performance of primed leek seeds is accompanied by marked increases in protein, DNA and nucleotide biosynthesis after a lag period of 6–12 h following the end of the priming period
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Claims 13
Claim · model-written summary
Osmotic priming reduced the mean time to germination and the spread of germination for two leek seed-lots.
- Taxon
- leek
Allium ampeloprasumt0 - Material
- two leek seed-lotse1
- Treatment
- Osmotic priming treatmentse1
- Outcome
- mean time to germination and the spread of germinatione1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“Osmotic priming treatments reduced both the mean time to germination and the spread of germination for two leek seed-lots of high viability but differing vigour”
Claim · model-written summary
Priming abolished the differences in germination performance between the two leek seed-lots.
- Taxon
- leekAllium ampeloprasumt0
- Treatment
- priming treatmentse2
- Outcome
- differences in germination performance between these two seed-lotse2
- Direction
- abolishede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e2“In addition the differences in germination performance between these two seed-lots was abolished by the priming treatments”
Claim · model-written summary
In unprimed seed-lots, differences in germination performance were reflected in differences in protein biosynthesis rates in leek embryo tissue during germination.
- Taxon
- leekAllium ampeloprasumt0
- Organ / stage
- embryo tissuee3
- Outcome
- differences in rates of protein biosynthesise3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e3“In the unprimed seed-lots, differences in germination performance were reflected in differences in rates of protein biosynthesis in leek embryo tissue during germination”
Claim · model-written summary
Osmopriming abolished the differences in protein biosynthesis rates upon germination of primed seed.
- Taxon
- leekAllium ampeloprasumt0
- Treatment
- Osmopriming treatmentse4
- Outcome
- differences in rates of protein biosynthesise3
- Direction
- abolishede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e3“In the unprimed seed-lots, differences in germination performance were reflected in differences in rates of protein biosynthesis in leek embryo tissue during germination”
e4“Osmopriming treatments abolished these differences upon subsequent germination of osmotically primed seed”
Claim · model-written summary
Osmopriming induced high levels of protein biosynthesis in leek embryo tissue.
- Taxon
- leekAllium ampeloprasumt0
- Organ / stage
- embryo tissuee5
- Treatment
- Osmopriming treatmentse4
- Outcome
- high levels of protein biosynthesise5
- Direction
- inducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e4“Osmopriming treatments abolished these differences upon subsequent germination of osmotically primed seed”
e5“furthermore induced high levels of protein biosynthesis in embryo tissue”
Claim · model-written summary
DNA synthesis was detectable in leek embryos during the priming period in the absence of cell division.
- Taxon
- leekAllium ampeloprasumt0
- Organ / stage
- leek embryose6
- Outcome
- DNA synthesise6
- Qualifier
- in the absence of any cell divisione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e6“DNA synthesis was detectable in leek embryos during the priming period in the absence of any cell division”
Claim · model-written summary
Following priming, the rate of DNA synthesis in embryo tissue rose five-fold on germination and was significantly greater than in embryos of unprimed leek seeds.
- Taxon
- leekAllium ampeloprasumt0
- Organ / stage
- embryo tissuee7
- Treatment
- priminge7
- Outcome
- rate of DNA synthesise7
- Direction
- increasee7
- Value
- five-folde7
- Comparator
- embryos of unprimed leek seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e7“was followed by a five-fold increase in the rate of DNA synthesis in embryo tissue upon germination following priming”
e1“at which time the rates of DNA synthesis in these leek embryos was significantly greater than that found at any time over the first 4 d of germination in embryos of unprimed leek seeds”
Claim · model-written summary
Increases in protein and DNA synthesis rates on germination of primed seed occurred only after a 6–12 h lag period.
- Taxon
- leekAllium ampeloprasumt0
- Outcome
- increases in rates of both protein and DNA synthesise1
- Qualifier
- only after a 6–12 h lag periode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“The increases in rates of both protein and DNA synthesis observed upon germination of primed seed occurred only after a 6–12 h lag period”
Claim · model-written summary
Nucleotide and nucleotide sugar levels in embryos during priming were only traces of GTP and CTP and low levels of ATP and UTP.
- Taxon
- leekAllium ampeloprasumt0
- Organ / stage
- embryose1
- Outcome
- nucleotide and nucleotide sugar levelse1
- Qualifier
- only traces of GTP and CTP and low levels of ATP and UTP were present in embryos during priminge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“Analysis of nucleotide and nucleotide sugar levels in leek embryos both during and after priming showed that only traces of GTP and CTP and low levels of ATP and UTP were present in embryos during priming”
Claim · model-written summary
Nucleotide and nucleotide sugar levels increased sharply after a 6 h lag period following the end of priming, probably via de novo synthesis.
- Taxon
- leekAllium ampeloprasumt0
- Outcome
- nucleotide and nucleotide sugar levelse1
- Direction
- increased sharplye2
- Qualifier
- probably via de novo synthesise2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“Analysis of nucleotide and nucleotide sugar levels in leek embryos both during and after priming showed that only traces of GTP and CTP and low levels of ATP and UTP were present in embryos during priming”
e2“After a 6 h lag period following the end of priming these levels increased sharply, probably via de novo synthesis”
Claim · model-written summary
UDP glucose levels followed a similar pattern during priming and subsequent germination.
- Taxon
- leekAllium ampeloprasumt0
- Outcome
- UDP glucose levelse1
- Qualifier
- A similar pattern was founde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“A similar pattern was found for UDP glucose levels during priming and subsequent germination”
Claim · model-written summary
Leek seeds show considerable biochemical activity during priming.
- Taxon
- leekAllium ampeloprasumt0
- Outcome
- considerable biochemical activitye1
- Qualifier
- during priminge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“These results indicate that there is considerable biochemical activity during priming”
Claim · model-written summary
The germination benefits of primed leek seeds are accompanied by marked increases in protein, DNA and nucleotide biosynthesis after a 6–12 h lag period.
- Taxon
- leekAllium ampeloprasumt0
- Outcome
- marked increases in protein, DNA and nucleotide biosynthesise1
- Qualifier
- after a lag period of 6–12 h following the end of the priming periode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biochemical Changes During Osmopriming of Leek Seeds”
e1“the significant benefits in germination performance of primed leek seeds is accompanied by marked increases in protein, DNA and nucleotide biosynthesis after a lag period of 6–12 h following the end of the priming period”
The same questions in other papers
seed treatment · growth · Allium ampeloprasum (leek)Results agree
6 papers in the same direction as this paper
- positive
- positive
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3 papers more in this group
See all 7 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.