Abstract
Changes in the wheat phosphatases (phytase-Phy and acid phosphatase-AcPh) and the degradation of their substrates (inositol phosphates esters) during seed germination have been examined in two studies. Germinated grains with high phytate degrading enzymes are of potential interest in the improvement of phosphorus availability in monogastric animals. In the first study, the seeds were soaked for 1 and 14 h and germinated for 3 and 5 days with and without the addition of gibberellic acid (GA3). In the second study, the seeds were soaked for 1 h and germinated for 1, 3 and 5 days with GA3. Phytase (up to 1800 and 1573 U/kg) and acid phosphatase (up to 13 115 and 10 154 U/g) activities and IP 6 (6·96 and 7·67 mg/g), IP 5 (0·40 and 0·60 mg/g) and IP 4 (0·04 and 0·04 mg/g) were detected in ungerminated spring and winter wheat, respectively. The germination process caused a significant increase of Phy and AcPh activities in spring (up to 275 and 235%) and winter wheat (up to 250 and 329%) and a reduction in the phytate phosphorus content (up to 35 and 64%, respectively). Phytate phosphorus content was affected in both spring and winter wheat by the soaking time. Finally, during the course of germination, IP 6 and IP 5 were more rapidly degraded in winter wheat (62 and 62%) than in spring wheat (32 and 29%), and IP 4 was only a short-living intermediate, which was increased during hydrolysis and degraded to IP 3 . In conclusion, the germination process caused a significant increase of Phy and AcPh in spring and winter wheat, which was accompanied with a significant reduction of phytate phosphorus content and an increase in the content of lower inositol phosphates.
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Claims 8
Claim · model-written summary
Germination increased Phy activity in spring wheat up to 275%.
Not reportedComparatorValue
Verbatim
e0“The germination process caused a significant increase of Phy and AcPh activities in spring (up to 275 and 235%) and winter wheat (up to 250 and 329%) and a reduction in the phytate phosphorus content (up to 35 and 64%, respectively).”
Claim · model-written summary
Germination increased AcPh activity in spring wheat up to 235%.
Not reportedComparatorValue
Verbatim
e0“The germination process caused a significant increase of Phy and AcPh activities in spring (up to 275 and 235%) and winter wheat (up to 250 and 329%) and a reduction in the phytate phosphorus content (up to 35 and 64%, respectively).”
Claim · model-written summary
Germination increased Phy activity in winter wheat wheat up to 250%.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- germination processe0
- Outcome
- Phye0
- Direction
- increasee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination process caused a significant increase of Phy and AcPh activities in spring (up to 275 and 235%) and winter wheat (up to 250 and 329%) and a reduction in the phytate phosphorus content (up to 35 and 64%, respectively).”
Claim · model-written summary
Germination increased AcPh activity in winter wheat wheat up to 329%.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- germination processe0
- Outcome
- AcPhe0
- Direction
- increasee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination process caused a significant increase of Phy and AcPh activities in spring (up to 275 and 235%) and winter wheat (up to 250 and 329%) and a reduction in the phytate phosphorus content (up to 35 and 64%, respectively).”
Claim · model-written summary
Germination reduced phytate phosphorus content in spring and winter wheat.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- germination processe0
- Outcome
- phytate phosphorus contente0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination process caused a significant increase of Phy and AcPh activities in spring (up to 275 and 235%) and winter wheat (up to 250 and 329%) and a reduction in the phytate phosphorus content (up to 35 and 64%, respectively).”
Claim · model-written summary
Soaking time affected phytate phosphorus content.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- soaking timee0
- Outcome
- Phytate phosphorus contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytate phosphorus content was affected in both spring and winter wheat by the soaking time.”
Claim · model-written summary
IP 6 and IP 5 degraded more rapidly in winter than spring wheat.
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- IP 6 and IP 5e0
- Direction
- more rapidly degradede0
- Comparator
- spring wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IP 6 and IP 5 were more rapidly degraded in winter wheat (62 and 62%) than in spring wheat (32 and 29%)”
Claim · model-written summary
IP 4 rose during hydrolysis and then degraded to IP 3.
Not reportedTaxon
Verbatim
e0“IP 4 was only a short-living intermediate, which was increased during hydrolysis and degraded to IP 3”
The same questions in other papers
processing · nutrient: content · Triticum aestivum (wheat)Positive and negative results
6 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
9 papers more in this group
See all 13 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.