Influence of phosphorus nutrition on growth and metabolism of Duo grass (Duo festulolium)
Use of suitable plants that can extract and concentrate excess P from contaminated soil serves as an attractive method of phytoremediation. Plants vary in their potential to assimilate different organic and inorganic P-substrates. In this study, the response of Duo grass (Duo festulolium) to variabl...
| Veröffentlicht in: | Plant physiology and biochemistry : PPB. - 1991. - 47(2009), 1 vom: 15. Jan., Seite 31-6 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2009
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| Zugriff auf das übergeordnete Werk: | Plant physiology and biochemistry : PPB |
| Schlagworte: | Journal Article Research Support, U.S. Gov't, Non-P.H.S. Phosphates Potassium Compounds Phosphorus 27YLU75U4W Adenosine Monophosphate 415SHH325A Phytic Acid 7IGF0S7R8I mehr... |
| Zusammenfassung: | Use of suitable plants that can extract and concentrate excess P from contaminated soil serves as an attractive method of phytoremediation. Plants vary in their potential to assimilate different organic and inorganic P-substrates. In this study, the response of Duo grass (Duo festulolium) to variable rates of soil-applied potassium dihydrogen phosphate (KH(2)PO(4)) on biomass yield and P uptake were studied. Duo grown for 5 weeks in soil with 2.5, 5 and 7.5 g KH(2)PO(4) kg(-1) soil showed a significantly higher biomass and shoot P content of 8.3, 11.4 and 12.3g P kg(-1) dry weight respectively compared to plants that received no soil added P. Also, the ability of Duo to metabolize different forms of P-substrates was determined by growing them in sterile Hoagland's agar media with different organic and inorganic P-substrates, viz. KH(2)PO(4), glucose-1-phosphate (G1P), inositiol hexaphosphate (IHP), adenosine triphosphate (ATP) and adenosine monophosphate (AMP) for 2 weeks. Plants on agar media with different P-substrates also showed enhanced biomass yield and shoot P relative to no P control and the P uptake was in the order of ATP>KH(2)PO(4)>G1P>IHP=AMP>no P control. The activities of both phytase (E.C.3.1.3.26) and acid phosphatases (E.C.3.1.3.2) were higher in all the P received plants than the control. Duo grass is capable of extracting P from the soil and also from the agar media and thus it can serve as possible candidate for phytoextraction of high P-soil |
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| Beschreibung: | Date Completed 27.03.2009 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2008.09.002 |