The mycorrhizal and nodulation status of container-grown trees and shrubs reared in commercial nurseries

1990 ◽  
Vol 20 (5) ◽  
pp. 609-614 ◽  
Author(s):  
R. M. Danielson ◽  
S. Visser
Keyword(s):  
Residence Time ◽  
Arbuscular Mycorrhizal ◽  
White Spruce ◽  
Planting Stock ◽  
Nursery Stock ◽  
Vesicular Arbuscular ◽  
Nodulation Status ◽  
Woody Shrubs ◽  
First Time ◽  
Trees And Shrubs

To guide in deciding whether artificial inoculation of container-grown woody seedlings used for reclamation purposes in Alberta might be beneficial, a survey was made of seven nurseries to determine the symbiotic status of plants ready for outplanting. Eight species of woody shrubs were rarely vesicular-arbuscular mycorrhizal if less than 1 year old and were erratically mycorrhizal after 1 to 2 years nursery residence time. Actinorhizal shrubs (Elaeagnuscommutata Bernh. ex Rydb. and Shepherdia spp.) did not become nodulated in the 1st year, and planting stock generally lacked N2-fixing ability. The mycorrhizal status of pines (Pinusbanksiana Lamb, and Pinuscontorta Dougl.) and white spruce (Piceaglauca (Moench) Voss) seedlings ranged from mycorrhizal-free to complete mycorrhization. A majority of the mycorrhizae were formed by Thelephoraterrestris Ehrh.:Fr., E-strain (Complexipes), and Myceliumradicisatrovirens Melin. Amphinemabyssoides (Fr.) J. Erikss. formed a large proportion of the mycorrhizae on white spruce, which were held in nurseries for over 1 year. A stipitate polypore, Coltricia sp., is reported as a mycorrhizal associate of nursery stock for the first time.

Mycorrhizal status of some plants of southwestern British Columbia

1988 ◽  
Vol 66 (10) ◽  
pp. 1924-1928 ◽  
Author(s):  
Shannon M. Berch ◽  
Sharmin Gamiet ◽  
Elisabeth Deom
Keyword(s):  
British Columbia ◽  
Plant Species ◽  
Arbuscular Mycorrhizal ◽  
Vancouver Island ◽  
University Of British Columbia ◽  
Mycorrhizal Status ◽  
Vesicular Arbuscular ◽  
First Time

During the summer of 1986, plants were collected from University of British Columbia Research Farm at Oyster River, Vancouver Island, and their mycorrhizal status was determined. Of the 60 plant species examined, 44 were always vesicular–arbuscular mycorrhizal, 13 were always nonmycorrhizal, and three varied. Nonmycorrhizal plants were found in species belonging to the following families: Araceae, Caryophyllaceae, Compositae, Cruciferae, Gramineae, Onagraceae, Polygonaceae, and Portulacaceae. The mycorrhizal status of 15 plant species is reported here for the first time. Of these, the nonmycorrhizal species included Lysichitum americanum (Araceae), Stellaria simcoei, Stellaria calycantha (Caryophyllaceae), and Epilobium minutum (Onagraceae), and the mycorrhizal species included Adenocaulon bicolor, Eriophyllum lanatum var. achillaeoides, Grindelia squarrosa var. serrulata (Compositae), Poa gracillima (Gramineae), Brodiaea coronaria, Disporum hookerii (Lilaceae), Polypodium glycyrrhiza (Polypodiaceae), Ranunculus uncinatus (Ranunculaceae), Rosa nutkana var. nutkana (Rosaceae), Collinsia parviflora (Scrophulariaceae), and Viola glabella (Violaceae).

Relationship between mycorrhizal activity, burning, and plant productivity in tallgrass prairie

1991 ◽  
Vol 69 (12) ◽  
pp. 2597-2602 ◽  
Author(s):  
S. P. Bentivenga ◽  
B. A. D. Hetrick
Keyword(s):  
Plant Growth ◽  
Tallgrass Prairie ◽  
Mycorrhizal Fungi ◽  
Warm Season ◽  
Arbuscular Mycorrhizal ◽  
Mycorrhizal Colonization ◽  
Prairie Grasses ◽  
Vesicular Arbuscular ◽  
The Impact ◽  
First Time

The impact of benomyl fungicide and spring burning on mycorrhizal activity and plant growth was assessed in tallgrass prairie in Kansas. We report for the first time that the productivity of mycotrophic plants can be reduced by inhibition of indigenous vesicular–arbuscular mycorrhizal fungi under field conditions. A vital stain, nitro blue tetrazolium, used to assess active mycorrhizal colonization, proved to be a more sensitive measure of treatment effects than the cell wall stain, trypan blue. Burning stimulated both plant growth and active mycorrhizal colonization. However, by 32 days after burning no differences in colonization were detected. Our observations support the hypothesis that mycorrhizal fungi play an important role in the growth of warm-season tallgrass prairie grasses and may contribute to enhanced plant growth of warm-season tallgrass prairie grasses and may contribute to enchanced plant growth following spring burning. Key words: burning, benomyl fungicide, phosphorus, tallgrass prairie, VA mycorrhizae, warm-season grasses.

Occurrence of Vesicular-Arbuscular Mycorrhizal Fungi in Alberta, Canada

1993 ◽  
Vol 48 (11-12) ◽  
pp. 923-929 ◽  
Author(s):  
S. M. Boyetchko ◽  
J. P. Tewari
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Fungal Species ◽  
Glomus Aggregatum ◽  
X Ray ◽  
Vesicular Arbuscular ◽  
Spore Walls ◽  
Scanning Electron

Abstract Three V A mycorrhizal fungal species were isolated from soils in Alberta, Canada and examined by scanning electron microscopy and energy-dispersive X-ray microanalysis. Mature spores of Glomus aggregatum developed an outer hyaline wall which contained lower levels of calcium than the middle wall. Examination of G. pansihalos spores revealed a lower level of calcium in the outer evanescent wall as compared to the ornamented wall. When spores of Entrophospora infrequens were examined, the wall of the vesicle was found to contain similar levels of calcium as the ornamented wall of the spore. The significance of the results concerning the presence of calcium in mycorrhizal spore walls is discussed, as is the occurrence of the mycorrhizal species.

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