Effect of Ozone on the Development of Vesicular-Arbuscular Mycorrhizae in Sugar Maple Saplings

Mycologia ◽  
1994 ◽  
Vol 86 (2) ◽  
pp. 181 ◽  
Author(s):  
Lynn Duckmanton ◽  
Paul Widden
Keyword(s):  
Sugar Maple ◽  
Arbuscular Mycorrhizae ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Vesicular Arbuscular

Development of vesicular–arbuscular mycorrhizae in sugar maple (Acer saccharum) and effects of base-cation ammendment on vesicle and arbuscule formation

1993 ◽  
Vol 71 (11) ◽  
pp. 1421-1426 ◽  
Author(s):  
Margaret A. Cooke ◽  
Paul Widden ◽  
Ivan O'Halloran
Keyword(s):  
Acer Saccharum ◽  
Sugar Maple ◽  
Arbuscular Mycorrhizae ◽  
Arbuscular Mycorrhizal ◽  
Base Cation ◽  
Plant Health ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Mycorrhizal Association ◽  
Vesicular Arbuscular ◽  
Hyphal Coils

The development, condition, and incidence of vesicular–arbuscular mycorrhizae of Acer saccharum (sugar maple) seedlings grown in the greenhouse in natural sugar maple forest soil substrate were examined. The effects of the addition of a cation mixture containing calcium, magnesium, and potassium were also studied. The mycorrhizal structures observed were similar to those found in natural field conditions. Mycorrhizae developed intracellularly via hyphal coils, and arbuscules usually developed from these coils, forming arbusculate coils. This development is different from that observed in most annual crop plants. Vesicular–arbuscular mycorrhizal structures appeared within 30 days. The rate of mycorrhizal infection decreased, along with plant health, as the quantity of the added cations was increased, but the amendment did not affect the morphology of the infection. More vesicles were observed in the lowest level of application than in controls, suggesting a stress response and possible relationship between plant health and condition of the mycorrhizal association. Key words: Acer saccharum, development, vesicular–arbuscular mycorrhizae.

Vesicular – arbuscular mycorrhizae in disturbed and revegetated sites from La Gran Sabana, Venezuela

1992 ◽  
Vol 70 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Gisela Cuenca ◽  
Milagros Lovera
Keyword(s):  
Arbuscular Mycorrhizae ◽  
Plant Cover ◽  
Ground Cover ◽  
Arbuscular Mycorrhizal ◽  
Most Probable Number ◽  
Probable Number ◽  
Organic Layers ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Disturbed Areas ◽  
Vesicular Arbuscular

Savannas growing on stony, old and nutrient-poor soils of southern Venezuela were severely disturbed by removal of the soil organic layers with bulldozers for road building. Introduced species Brachiaria decumbens, Brachiaria humidicola, Pueraria phaseoloides, and Calopogonium sp. were sown. The substrate was fertilized and limed. Plant cover, vesicular – arbuscular mycorrhizae colonization, spore number, and most probable number of propagulels in undisturbed savanna, disturbed nonrevegetated savanna, and six revegetated savannas were assessed. The perturbation reduced the mycorrhizal propagule number in comparison with the undisturbed savanna. In the nonrevegetated areas the mean percent ground cover 2 years after disturbance was low (0.04%). In revegetated areas an increase in mycorrhizal propagule number occurred and the mycorrhizal colonization of the sown species was high. In restored areas there was an increase in species of nonmycotrophic Amaranthaceae. The results support other predictions on the mycorrhizae in successional biomes, because in the extremely nutrient-poor soils studied the colonizing species were mainly mycotrophic. The reclamation program applied in disturbed areas was useful because it has allowed the recovery of vesicular – arbuscular mycorrhizal inoculum and there was an increase in the recolonization of native plants. Key words: disturbance, endomycorrhizae, revegetation, savanna, vesicular – arbuscular mycorrhizae.

scholarly journals Effect of Biofertilizers and Vesicular Arbuscular Mycorrhizae on Holy Basil (Ocimum sanctum)

2019 ◽  
Vol 8 (06) ◽  
pp. 1316-1326
Author(s):  
J.M. Harishkumar ◽  
C. Karishmaa ◽  
N. Meenaloshini ◽  
K. Nagavalli ◽  
P. Pavithra ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizae ◽  
Ocimum Sanctum ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Vesicular Arbuscular ◽  
Holy Basil
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