Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants
Low phytic acid (lpa) crops are low in phytic acid and high in inorganic phosphorus (Pi). In this study, two lpa pea genotypes, 1-150-81, 1-2347-144, and their progenitor CDC Bronco were grown in field trials for two years. The lpa genotypes were lower in IP6 and higher in Pi when compared to CDC Br...
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| Format: | Article |
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MDPI AG
2014-12-01
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| Series: | Plants |
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| Online Access: | http://www.mdpi.com/2223-7747/4/1/1 |
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| author | Arun S.K. Shunmugam Cheryl Bock Gene C. Arganosa Fawzy Georges Gordon R. Gray Thomas D. Warkentin |
| author_facet | Arun S.K. Shunmugam Cheryl Bock Gene C. Arganosa Fawzy Georges Gordon R. Gray Thomas D. Warkentin |
| author_sort | Arun S.K. Shunmugam |
| collection | DOAJ |
| description | Low phytic acid (lpa) crops are low in phytic acid and high in inorganic phosphorus (Pi). In this study, two lpa pea genotypes, 1-150-81, 1-2347-144, and their progenitor CDC Bronco were grown in field trials for two years. The lpa genotypes were lower in IP6 and higher in Pi when compared to CDC Bronco. The total P concentration was similar in lpa genotypes and CDC Bronco throughout the seed development. The action of myo-inositol phosphate synthase (MIPS) (EC 5.5.1.4) is the first and rate-limiting step in the phytic acid biosynthesis pathway. Aiming at understanding the genetic basis of the lpa mutation in the pea, a 1530 bp open reading frame of MIPS was amplified from CDC Bronco and the lpa genotypes. Sequencing results showed no difference in coding sequence in MIPS between CDC Bronco and lpa genotypes. Transcription levels of MIPS were relatively lower at 49 days after flowering (DAF) than at 14 DAF for CDC Bronco and lpa lines. This study elucidated the rate and accumulation of phosphorus compounds in lpa genotypes. The data also demonstrated that mutation in MIPS was not responsible for the lpa trait in these pea lines. |
| first_indexed | 2024-12-20T23:13:54Z |
| format | Article |
| id | doaj.art-db37332ff6a0443b9c6997b2883ab22c |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-12-20T23:13:54Z |
| publishDate | 2014-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-db37332ff6a0443b9c6997b2883ab22c2022-12-21T19:23:40ZengMDPI AGPlants2223-77472014-12-014112610.3390/plants4010001plants4010001Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) MutantsArun S.K. Shunmugam0Cheryl Bock1Gene C. Arganosa2Fawzy Georges3Gordon R. Gray4Thomas D. Warkentin5Crop Development Centre, Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, CanadaNational Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, CanadaCrop Development Centre, Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, CanadaNational Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, CanadaCrop Development Centre, Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, CanadaCrop Development Centre, Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, CanadaLow phytic acid (lpa) crops are low in phytic acid and high in inorganic phosphorus (Pi). In this study, two lpa pea genotypes, 1-150-81, 1-2347-144, and their progenitor CDC Bronco were grown in field trials for two years. The lpa genotypes were lower in IP6 and higher in Pi when compared to CDC Bronco. The total P concentration was similar in lpa genotypes and CDC Bronco throughout the seed development. The action of myo-inositol phosphate synthase (MIPS) (EC 5.5.1.4) is the first and rate-limiting step in the phytic acid biosynthesis pathway. Aiming at understanding the genetic basis of the lpa mutation in the pea, a 1530 bp open reading frame of MIPS was amplified from CDC Bronco and the lpa genotypes. Sequencing results showed no difference in coding sequence in MIPS between CDC Bronco and lpa genotypes. Transcription levels of MIPS were relatively lower at 49 days after flowering (DAF) than at 14 DAF for CDC Bronco and lpa lines. This study elucidated the rate and accumulation of phosphorus compounds in lpa genotypes. The data also demonstrated that mutation in MIPS was not responsible for the lpa trait in these pea lines.http://www.mdpi.com/2223-7747/4/1/1D-myo-inositol phosphate synthase (MIPS)phosphorusphytate biosynthesisphytic acid |
| spellingShingle | Arun S.K. Shunmugam Cheryl Bock Gene C. Arganosa Fawzy Georges Gordon R. Gray Thomas D. Warkentin Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants Plants D-myo-inositol phosphate synthase (MIPS) phosphorus phytate biosynthesis phytic acid |
| title | Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants |
| title_full | Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants |
| title_fullStr | Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants |
| title_full_unstemmed | Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants |
| title_short | Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants |
| title_sort | accumulation of phosphorus containing compounds in developing seeds of low phytate pea pisum sativum l mutants |
| topic | D-myo-inositol phosphate synthase (MIPS) phosphorus phytate biosynthesis phytic acid |
| url | http://www.mdpi.com/2223-7747/4/1/1 |
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