Distribution of photosynthetically fixed carbon within root systems of Eucalyptus pilularis plants ectomycorrhizal with Pisolithus tinctorius

In intact seedlings of Eucalyptus pilularis Stn. ectomycorrhizal with Pisolithus tinctorius (Pers.) Coker & Couch in growth pouches, and labelled photosynthetically with 14 C4 more radioactivity was translocated into mycorrhizal than to non-mycorrhizal roots. Results from autoradiography of inta...

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Veröffentlicht in:The New phytologist. - 1979. - 112(1989), 4 vom: 12. Aug., Seite 495-500
1. Verfasser: Cairney, J W G (VerfasserIn)
Weitere Verfasser: Ashford, A E, Allaway, W G
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1989
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Ectomycorrhizas ageing carbon transfer translocation
Beschreibung
Zusammenfassung:In intact seedlings of Eucalyptus pilularis Stn. ectomycorrhizal with Pisolithus tinctorius (Pers.) Coker & Couch in growth pouches, and labelled photosynthetically with 14 C4 more radioactivity was translocated into mycorrhizal than to non-mycorrhizal roots. Results from autoradiography of intact root systems were supported by data from scintillation counting of individual root tips. Greater 14 C accumulation occurred in young than in older mycorrhizas. It is proposed that individual mycorrhizal roots act most strongly as carbon sinks early in their life and that there is a progressive reduction in the amount of photosynthate translocated to them as they age
Beschreibung:Date Revised 01.10.2020
published: Print
Citation Status PubMed-not-MEDLINE
ISSN:1469-8137
DOI:10.1111/j.1469-8137.1989.tb00343.x