Effect of vesicular-arbuscular mycorrhizae on seedling growth of four tree species from the tropical deciduous forest in Mexico

Mycorrhiza ◽  
1993 ◽  
Vol 2 (3) ◽  
pp. 141-145 ◽  
Author(s):  
Pilar Huante ◽  
Emmanuel Rincon ◽  
Edith B. Allen
Keyword(s):  
Seedling Growth ◽  
Tree Species ◽  
Arbuscular Mycorrhizae ◽  
Deciduous Forest ◽  
Tropical Deciduous Forest ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Vesicular Arbuscular

The morphology of vesicular – arbuscular mycorrhizae in Clintonia borealis and Medeola virginiana

1996 ◽  
Vol 74 (5) ◽  
pp. 679-685 ◽  
Author(s):  
Paul Widden
Keyword(s):  
Arbuscular Mycorrhizae ◽  
Deciduous Forest ◽  
Arbuscular Mycorrhizal ◽  
Cortical Layer ◽  
Cortical Cells ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Forest Herbs ◽  
Vesicular Arbuscular ◽  
Innermost Layer ◽  
Inner Cortex

During a survey of the vesicular–arbuscular mycorrhizal (VAM) associations of forest herbs in a deciduous forest in the southern Laurentian mountains in Quebec, two liliaceous species, Clintonia borealis and Medeola virginiana, revealed very distinctive morphology. In both species, once the epidermis was penetrated, the fungus spread towards the centre of the root via intracellular hyphae until the innermost layer of the cortex was reached, at which point the fungus spread laterally and tangentially through the cortical cells adjacent to the endodermis via a series of banana-shaped projections (bobbits). These eventually differentiated into the arbuscules and the VAM might spread from this inner cortical layer back into the outer cortical layers. In C. borealis, the hyphae coiled in the cortex, and vesicles were formed in the upper cortical cells. In M. virginiana, no coiling took place, but extensive diverticulae were produced by the intracellular hyphae in the cortical cells, close to their point of exit, and vesicles were produced in the inner cortex as swellings from the bobbits. These two mycorrhizae have some similarities to one in Colchicum autumnale described by I. Gallaud (1905. Rev. Gen. Bot. 17). Keywords: vesicular–arbuscular mycorrhizae, Clintonia borealis, Medeola virginiana, Liliaceae, morphology.

Seed reserve translocation and early seedling growth of eight tree species in a tropical deciduous forest in Mexico

Plant Ecology ◽  
2013 ◽  
Vol 214 (11) ◽  
pp. 1361-1375 ◽  
Author(s):  
Diana Soriano ◽  
Pilar Huante ◽  
Alicia Gamboa-de Buen ◽  
Alma Orozco-Segovia
Keyword(s):  
Seedling Growth ◽  
Tree Species ◽  
Deciduous Forest ◽  
Tropical Deciduous Forest ◽  
Early Seedling Growth ◽  
Early Seedling

scholarly journals Seed reserve composition in 19 tree species of a tropical deciduous forest in Mexico and its relationship to seed germination and seedling growth

2011 ◽  
Vol 107 (6) ◽  
pp. 939-951 ◽  
Author(s):  
Diana Soriano ◽  
Alma Orozco-Segovia ◽  
Judith Márquez-Guzmán ◽  
Kaoru Kitajima ◽  
Alicia Gamboa-de Buen ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Tree Species ◽  
Deciduous Forest ◽  
Tropical Deciduous Forest

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.

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