Effectiveness of different Frankia cell types as inocula for the actinorhizal plant Casuarina

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Applied and Environmental Microbiology; (USA)

OSTI ID:5965813

Burleigh, S; Torrey, J G ^[1]

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1. Harvard Univ., Petersham, MA (USA)

The soil bacterium Frankia of the Actinomycetales, capable of forming N{sub 2}-fixing symbiotic root nodules on a diverse array of actinorhizal plants, has several morphological forms when grown in pure culture. Fresh hydrated preparations of whole cells, hyphae, and spores were all infective on seedlings of Casuarina at different dilutions. Desiccated hyphae showed no infection capacity, while desiccated spores remained infective, although at a reduced level. On the basis of most-probably-number statistics, spore suspensions were 3 orders of magnitude more infective than hyphae.

• OSTI ID: 5965813
• Journal Information: Applied and Environmental Microbiology; (USA), Journal Name: Applied and Environmental Microbiology; (USA) Vol. 56:8; ISSN 0099-2240; ISSN AEMID
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540210* -- Environment
Terrestrial-- Basic Studies-- (1990-)
BACTERIA
BACTERIAL SPORES
INFECTIVITY
MICROORGANISMS
MORPHOLOGY
NITROGEN FIXATION
PLANTS
RHIZOBIUM
ROOTS
SPORES