Comparative phloem Mobility of nickel in nonsenescent plants. [Pisum sativa L. ; Pelargonium zonale L]

Journal Article · Sun Jun 01 00:00:00 EDT 1986 · Plant Physiol.; (United States)

OSTI ID:6990238

Neumann, P M; Chamel, A

/sup 63/Ni was applied to nonsenescent source leaves and found to be transported to sink tissues in pea (Pisum saativum L.) and geranium plants (Pelargonium zonale L.). The comparative mobilities (percent tracer transported out of source leaf division % /sup 86/Rb transported) for /sup 63/Ni in peas was 2.12 and in geranium 0.25. The value for the phloem mobile /sup 86/Rb was 1.00. By contrast, the comparative mobility of /sup 45/Ca, which is relatively immobile in the phloem, was low (0.05 in peas, 0.00 in geranium). Interruption of the phloem pathway between source and sink leaves by steam girdling almost completely inhibited /sup 63/Ni accumulation in the sink leaves of both species. The authors conclude that Ni is transported from nonsenescent source leaves to sink tissues via the phloem of leguminous and nonleguminous plants.

• Research Organization: Centre d'Etudes Nucleaires, Grenoble, France
• OSTI ID: 6990238
• Journal Information: Plant Physiol.; (United States), Vol. 81:2
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
CALCIUM 45
TISSUE DISTRIBUTION
NICKEL
BIOLOGICAL AVAILABILITY
NICKEL 63
RUBIDIUM 86
BIOLOGICAL ACCUMULATION
COMPARATIVE EVALUATIONS
ORNAMENTAL PLANTS
PISUM
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
BACTERIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
DISTRIBUTION
ELEMENTS
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEGUMINOSAE
METALS
MICROORGANISMS
MINUTES LIVING RADIOISOTOPES
NICKEL ISOTOPES
NUCLEI
ODD-ODD NUCLEI
PLANTS
RADIOISOTOPES
RHIZOBIUM
RUBIDIUM ISOTOPES
TRANSITION ELEMENTS
YEARS LIVING RADIOISOTOPES
551001* - Physiological Systems- Tracer Techniques