Results 141 to 150 of about 1,656 (182)

THE SPREAD OF MYCORRHIZAL INFECTION BY GIGASPORA CALOSPORA FROM A LOCALIZED INOCULUM

New Phytologist, 1987
SummaryThe lateral spread of Gigaspora calospora (Nicol. and Gerd.) Gerdemann & Trappe was examined in Trifolium subterraneum L. (subterranean clover) grown on a steamed lateritic podsol. Plants were sown in a sward in pots 29 cm long × 12 cm wide and inoculum of G. calospora was placed at one end. Mycorrhizal infection was estimated 21, 35, 63, 91
M A, Scheltema, L K, Abbott, A D, Robson, G, De'ath   +3 more
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Intraradical hyphae phosphatase of the arbuscular mycorrhizal fungus, Gigaspora margarita

Biology and Fertility of Soils, 1998
An alkaline phosphatase in the intraradical hyphae of arbuscular mycorrhizal fungi was found to be closely related to an improvement of plant growth. To detect the phosphatase activity in a crude extract of mycorrhizal roots, phosphatase isozymes in mycorrhizal and non-mycorrhizal onion roots were compared with those in Gigaspora margarita by ...
T. Kojima, M. Hayatsu, M. Saito
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Species of Gigaspora (Endogonaceae) with Roughened Outer Walls

Mycologia, 1985
Examination of soil samples from sand dunes of the eastern seaboard of the U.S.A. revealed three previously undescribed species of Gigaspora producing spores with roughened outer walls.
R. E. Koske, Christopher Walker
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Sporulation of Gigaspora margarita on root cultures of tomato

Canadian Journal of Microbiology, 1984
Use of germinated spores of Gigaspora margarita as inoculum on tomato root culture plates routinely resulted in successful mycorrhizal infections in more than 85% of inoculated root cultures. Penetration into the root, vesicle formation, arbuscule production, and new spore formation were reproducibly observed.
M. A. Miller-Wideman, L. S. Watrud
openaire   +1 more source

Randomly amplified polymorphic DNA using the M13 core sequence of the vesicular–arbuscular mycorrhizal fungi Gigaspora margarita and Gigaspora gigantea

Canadian Journal of Microbiology, 1997
Vesicular–arbuscular mycorrhizal (VAM) fungi are obligate symbionts, and a primary benefit provided to the host is the alleviation of stress. The recalcitrance of these fungi to grow in pure culture has spurred researchers to develop an alternative form of cultivation, namely the root organ culture (ROC).
Vijay Gadkar, Alok Adholeya, T. Satyanarayana   +2 more
openaire   +1 more source

Gigaspora Gigantea: Observations on Spore Germination of a Va-Mycorrhizal Fungus

Mycologia, 1981
Spore germination of a vesicular-arbuscular mycorrhizal fungus in the absence of a host plant was investigated.
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Enhancement of in vitro spore germination of Gigaspora rosea by a cellulase preparation

Mycological Research, 1992
Solutions of a cellulase preparation from Trichoderma reesei have been found to induce in vitro germination of asexual spores of the vesicular-arbuscular mycorrhizal (VAM) fungus Gigaspora rosea. Spores were incubated in cellulase at concentrations of 1·6, 3·2, 4·8 and 6·4 units ml−1 or in distilled water (pH 6·4).
S.B. Persad-Chinnery, L.E. Chinnery, R.B.G. Dales   +2 more
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Gigaspora gigantea: seasonal abundance and ageing of spores in a sand dune

Mycological Research, 1994
Seasonal abundance of spores of the arbuscular mycorrhizal (AM) fungus Gigaspora gigantea in four different stages of vigour was monitored in a coastal sand dune in Rhode Island. Stages included healthy, moribund, dead and invaded spores. Invaded spores contained spores of other AM fungi.
Lee, Pau Ju, Koske, R. E.
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Biotreatment of pulp mill bleachery effluents with the coelomycetous fungusStagonospora gigaspora

Biotechnology Letters, 1992
The coelomyceteStagonospora gigaspora degrades lignin derivatives within pulp mill bleachery effluents. Besides dechlorination, 90% of the color was removed from CEH bleachery effluents. Lignin derivatives in the effluents of the EOP bleaching stages revealed more persistent against fungal attack. Toxicity of both effluents was diminished significantly
Matthias Bergbauer, Claudia Eggert, G�nther Kalnowski   +2 more
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Zygospores and asexual spores of Gigaspora decipiens, an arbuscular mycorrhizal fungus

Mycological Research, 1990
The description of Gigaspora decipiens is extended to include the teleomorph. Ontogeny of the anamorph use of the terms chlamydospore and azygospore, and terminology for the teleomorph are discussed.
I.C. Tommerup, K. Sivasithamparam
openaire   +1 more source