scholarly journals The effect of growth substrate and fertilizer on the growth and vesicular-arbuscular mycorrhizal infection of three hosts

1992 ◽  
Vol 1 (1) ◽  
pp. 95-105 ◽  
Author(s):  
Mauritz Vestberg
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Arbuscular Mycorrhizal ◽  
Fragaria X Ananassa ◽  
Growth Substrate ◽  
Mycorrhizal Infection ◽  
Bone Meal ◽  
Vam Fungi ◽  
Vesicular Arbuscular ◽  
Test Plants

The effect of growth substrate in combination with two compound fertilizers or bone meal on the vesicular-arbuscular mycorrhizal (VAM) infection and growth of micropropagated strawberry (Fragaria x ananassa Duch.) and arctic bramble (Rubus arcticus L.), as well as maize (Zea mays L.) was studied in pot experiments. With all test plants, sand fertilized with bone meal was superior to the richer peat-based substrates in initiating rapid VA mycorrhizal infection and sporulation of the VAM fungi used. A fertilizing regime yielding plants of a sufficient size, which at the same time are mycorrhizal, is suggested.

Photoacoustic monitoring of the influence of arbuscular mycorrhizal infection on the photosynthesis of corn (Zea mays L.)

Plant Science ◽  
1996 ◽  
Vol 119 (1-2) ◽  
pp. 183-190 ◽  
Author(s):  
Daniel Acosta-Avalos ◽  
Juan J. Alvarado-Gil ◽  
Helion Vargas ◽  
Juan Frías-Hernández ◽  
Victor Olalde-Portugal ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Arbuscular Mycorrhizal ◽  
Mycorrhizal Infection

Vesicular–arbuscular mycorrhizal colonization in Zea mays affected by breeding for resistance to fungal pathogens

1990 ◽  
Vol 68 (5) ◽  
pp. 1039-1044 ◽  
Author(s):  
Ronald Toth ◽  
Deborah Toth ◽  
David Starke ◽  
David R. Smith
Keyword(s):  
Zea Mays ◽  
Mycorrhizal Fungi ◽  
Fungal Pathogens ◽  
Arbuscular Mycorrhizae ◽  
Zea Mays L ◽  
Arbuscular Mycorrhizal ◽  
Root Systems ◽  
Mycorrhizal Colonization ◽  
Breeding Programs ◽  
Vesicular Arbuscular

Inbred lines of Zea mays L. (maize) selected for a range of resistances to a variety of fungal pathogens were assayed for percentage colonization by vesicular–arbuscular mycorrhizal fungi. Inbreds that were generally resistant to a number of fungal pathogens had significantly lower levels of vesicular–arbuscular mycorrhizae, matured more slowly, and had larger root systems. Disease-susceptible inbreds had significantly higher levels of mycorrhizal colonization, matured more rapidly, and had smaller root systems. It is uncertain if a general resistance to fungal pathogens or rate of root development, separately or in combination, may have influenced mycorrhizal colonization levels. Irrespective of cause, present breeding programs for disease resistance in maize do influence the plants ability to form mycorrhizae.

Susceptibility of barley cultivars to vesicular-arbuscular mycorrhizal fungi

1995 ◽  
Vol 75 (1) ◽  
pp. 269-275 ◽  
Author(s):  
S. M. Boyetchko ◽  
J. P. Tewari
Keyword(s):  
Mycorrhizal Fungi ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Growth And Yield ◽  
Vam Fungi ◽  
University Of Alberta ◽  
Barley Cultivars ◽  
Vesicular Arbuscular ◽  
Glomus Species ◽  
The University

The relative susceptibility of selected barley cultivars produced in western Canada to vesicular-arbuscular mycorrhizal (VAM) fungi under field and greenhouse conditions was evaluated in this study. Cultivars tested under field conditions at the University of Alberta and Lacombe research stations showed no significant differences in VAM colonization of barley roots; colonization was light. Greenhouse trials at the University of Alberta with eight cultivars inoculated with individual mycorrhizal species illustrated significant differences among the barley cultivars in their reactions to Glomus dimorphicum, G. intraradices, and G. mosseae. Distinct differences were observed in the ability of each Glomus species to colonize the barley cultivars. The VAM fungi increased growth and yield in some cultivars, depending on the Glomus species. This study indicates that a degree of host-specificity exists in VAM fungi and that the host-mycorrhizal fungus genotypes may influence the effectiveness of the symbiosis. Key words: Barley, cultivars, susceptibility, VA mycorrhizal fungi

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