ZhouDesjardinsLapointe2013

Référence

Zhou, J., Desjardins, Y. and Lapointe, L. (2013) Nutrient uptake kinetics of cloudberry. Journal of Plant Nutrition, 36(8):1219-1233.

Résumé

Mineral fertilization of cloudberry (Rubus chamaemorus) has been inconclusive so far. Nutrient absorption of cloudberry was studied by solution depletion 1) to characterize its nutrient uptake kinetics and 2) to determine its preferred nitrogen (N) form. Two accessions, Fjordgull' (a female cultivar from Norway) and a local wild clonal selection from Baie-Comeau' (Canada) were tested. Ammonium (NH4) and phosphorus (P) absorption presented a two-component kinetic while nitrate (NO3), potassium (K), and glycine absorption was better fitted with the Michaelis-Menten equation alone. Cloudberry preferences for nitrogen form were in the order: NH4-N, glycine, NO3-N. Fjordgull' exhibited much higher K-m and J(max) for P uptake than the Baie-Comeau' accession, but they exhibited similar NH4-N uptake kinetics. However, K-m values for all nutrients tested except NH4-N were higher than reported for other species. Cloudberry does not appear to have evolved efficient absorption kinetics to compensate for the overall very low abundance of nutrients of peatlands.

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@ARTICLE { ZhouDesjardinsLapointe2013,
    AUTHOR = { Zhou, J. and Desjardins, Y. and Lapointe, L. },
    TITLE = { Nutrient uptake kinetics of cloudberry },
    JOURNAL = { Journal of Plant Nutrition },
    YEAR = { 2013 },
    VOLUME = { 36 },
    PAGES = { 1219-1233 },
    NUMBER = { 8 },
    MONTH = { JAN 1 },
    ABSTRACT = { Mineral fertilization of cloudberry (Rubus chamaemorus) has been inconclusive so far. Nutrient absorption of cloudberry was studied by solution depletion 1) to characterize its nutrient uptake kinetics and 2) to determine its preferred nitrogen (N) form. Two accessions, Fjordgull' (a female cultivar from Norway) and a local wild clonal selection from Baie-Comeau' (Canada) were tested. Ammonium (NH4) and phosphorus (P) absorption presented a two-component kinetic while nitrate (NO3), potassium (K), and glycine absorption was better fitted with the Michaelis-Menten equation alone. Cloudberry preferences for nitrogen form were in the order: NH4-N, glycine, NO3-N. Fjordgull' exhibited much higher K-m and J(max) for P uptake than the Baie-Comeau' accession, but they exhibited similar NH4-N uptake kinetics. However, K-m values for all nutrients tested except NH4-N were higher than reported for other species. Cloudberry does not appear to have evolved efficient absorption kinetics to compensate for the overall very low abundance of nutrients of peatlands. },
    ADDRESS = { 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA },
    AFFILIATION = { Lapointe, L (Reprint Author), Univ Laval, Dept Biol, Quebec City, PQ G1V 0A6, Canada. Zhou, Jin; Lapointe, Line, Univ Laval, Dept Biol, Quebec City, PQ G1V 0A6, Canada. Zhou, Jin; Lapointe, Line, Univ Laval, Ctr Etud Foret, Quebec City, PQ G1V 0A6, Canada. Desjardins, Yves, Univ Laval, Dept Phytol, Quebec City, PQ G1V 0A6, Canada. },
    AUTHOR-EMAIL = { Line.Lapointe@bio.ulaval.ca },
    DOC-DELIVERY-NUMBER = { 136EX },
    DOI = { 10.1080/01904167.2013.780610 },
    FUNDING-ACKNOWLEDGEMENT = { Le Fonds quebecois de recherche sur la nature et les technologies },
    FUNDING-TEXT = { We thank Philippe Jobin and Mireille Bellemare for their help in collecting the rhizomes and Premier Horticulture for allowing us to harvest cloudberry rhizomes on their property. We also thank Jean Martin and Pascal Dube for their technical help with nutrient analyses. This project was financially supported by Le Fonds quebecois de recherche sur la nature et les technologies through the program `Action concertee pour le soutien strategique a la promotion et a la consolidation de la recherche sur l'environnement rural. },
    ISSN = { 0190-4167 },
    JOURNAL-ISO = { J. Plant Nutr. },
    KEYWORDS = { Rubus chamaemorus; uptake kinetics; potassium; phosphorus; nitrogen form; organic nitrogen },
    KEYWORDS-PLUS = { AMINO-ACID-UPTAKE; YOUNG RICE PLANTS; CONSTANT LOW PH; NITRATE UPTAKE; PHOSPHATE-UPTAKE; ARCTIC TUNDRA; NITROGEN-UTILIZATION; POTASSIUM-TRANSPORT; RUBUS-CHAMAEMORUS; PHOSPHORUS UPTAKE },
    LANGUAGE = { English },
    NUMBER-OF-CITED-REFERENCES = { 68 },
    OWNER = { nafon9 },
    PUBLISHER = { TAYLOR \& FRANCIS INC },
    RESEARCH-AREAS = { Plant Sciences },
    TIMES-CITED = { 0 },
    TIMESTAMP = { 2013.06.06 },
    TYPE = { Article },
    WEB-OF-SCIENCE-CATEGORIES = { Plant Sciences },
}

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