Exploration of mechanisms regulating ectomycorrhizal colonization of boron-fertilized pine. [Pisolithus tinctorius]

Technical Report · Sat Jun 01 00:00:00 EDT 1991

OSTI ID:5612612

Garrett, H E; Sword, M A

The ectomycorrhizal association is a naturally occurring symbiotic relationship existing between ectomycorrhizal-forming fungi and the root system of some plants, including many coniferous species. Since boron fertilization (BF) has been reported to increase fungal colonization of clover and alfalfa, the effect of BF on fungal colonization and growth of shortleaf pine was examined. Inoculation of seedlings was shown to increase growth responses in boron treated plants. BF increases root sucrose concentrations required for fungal development and improves the nutritional balance of the plant. Mycorrhizae increase auxin levels in root (possibly increasing root primordial development) while BF decreases root auxin (possibly increasing root elongation). BF reduces phenolic concentrations in the root. BF enhances mycorrhizae and root development, and results in increased tree seedling growth. 36 refs., 9 figs.

• Research Organization: Missouri Univ., Columbia, MO (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG01-86CE15270
• OSTI ID: 5612612
• Report Number(s): DOE/CE/15270-T17; ON: DE91014995
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
59 BASIC BIOLOGICAL SCIENCES
BORON
BIOLOGICAL EFFECTS
CARBOHYDRATES
METABOLISM
MYCORRHIZAS
PHENOLS
PINES
BIOLOGICAL PATHWAYS
PLANT GROWTH
AUXINS
BORIC ACID
FERTILIZERS
GROWTH
MITIGATION
MORPHOLOGY
PROGRESS REPORT
ROOTS
SACCHAROSE
SEEDLINGS
SOIL CHEMISTRY
SYMBIOSIS
TRANSLOCATION
AROMATICS
CHEMISTRY
CONIFERS
DISACCHARIDES
DOCUMENT TYPES
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
PINOPHYTA
PLANT GROWTH REGULATORS
PLANTS
SACCHARIDES
SEMIMETALS
TREES
553000* - Agriculture & Food Technology
550700 - Microbiology