Neighbor Influences on Root Morphology and Mycorrhizal Fungus Colonization in Tallgrass Prairie Plants

Ecology ◽  
1993 ◽  
Vol 74 (2) ◽  
pp. 561-569 ◽  
Author(s):  
J. D. Jastrow ◽  
R. M. Miller
Keyword(s):  
Tallgrass Prairie ◽  
Root Morphology ◽  
Mycorrhizal Fungus ◽  
Prairie Plants

scholarly journals Water Stress of Tallgrass Prairie Plants in Central Oklahoma

1984 ◽  
Vol 37 (2) ◽  
pp. 147 ◽  
Author(s):  
D. R. Hake ◽  
J. Powell ◽  
J. K. McPherson ◽  
P. L. Claypool ◽  
G. L. Dunn
Keyword(s):  
Water Stress ◽  
Tallgrass Prairie ◽  
Prairie Plants

The Distribution and Abundance of Tallgrass Prairie Plants: A Test of the Core-Satellite Hypothesis

1987 ◽  
Vol 130 (1) ◽  
pp. 18-35 ◽  
Author(s):  
Nicholas J. Gotelli ◽  
Daniel Simberloff
Keyword(s):  
Tallgrass Prairie ◽  
The Core ◽  
Prairie Plants

scholarly journals Mycorrhizal roles in plant growth, gas exchange, root morphology, and nutrient uptake of walnuts

2020 ◽  
Vol 66 (No. 6) ◽  
pp. 295-302 ◽  
Author(s):  
Guang-Ming Huang ◽  
Ying-Ning Zou ◽  
Qiang-Sheng Wu ◽  
Yong-Jie Xu ◽  
Kamil Kuča
Keyword(s):  
Gas Exchange ◽  
Plant Growth ◽  
Root Morphology ◽  
Mycorrhizal Fungi ◽  
Leaf Gas Exchange ◽  
Juglans Regia ◽  
Mycorrhizal Fungus ◽  
Mineral Nutrient ◽  
Positive Role ◽  
Nutrient Contents

Walnut, an important oil fruit tree, is dependent on arbuscular mycorrhizas, while mycorrhizal roles and efficient mycorrhizal fungus in walnuts are unknown. This study was conducted to evaluate the effect of five arbuscular mycorrhizal fungi (AMF) species, including Acaulospora scrobiculata, Diversispora spurca, Glomus etunicatum, G. mosseae, and G. versiforme on plant growth, leaf gas exchange, root morphology, and root nutrient contents of walnut (Juglans regia L. Liaohe 1) seedlings. Three months of AMF inoculations later, root mycorrhizal colonisation achieved 47.0% to 76.4%. AMF treatments increased plant growth performance, dependent on AMF species. AMF-inoculated plants with D. spurca, G. etunicatum, and G. mosseae showed higher root length, projected area, surface area, and volume than non-AMF plants. Except for G. versiforme, the other four AMF treatments almost significantly increased leaf photosynthesis rate, transpiration rate, and stomatal conductivity, while reduced intercellular CO<sub>2</sub> concentrations and leaf temperature. AMF affected root nutrient contents, dependent on AMF and mineral nutrient species. These results, thereby, concluded that AMF had a positive role in walnuts, dependent on AMF species, and D. spurca was the best mycorrhizal fungus for walnut. Such results provide the potential possibility of a developing consortium of AMF in walnut cultivation management.

Comparison of damage to native and exotic tallgrass prairie plants by natural enemies

Plant Ecology ◽  
2008 ◽  
Vol 198 (2) ◽  
pp. 197-210 ◽  
Author(s):  
Xuemei Han ◽  
Shauna P. Dendy ◽  
Karen A. Garrett ◽  
Liang Fang ◽  
Melinda D. Smith
Keyword(s):  
Tallgrass Prairie ◽  
Natural Enemies ◽  
Prairie Plants

Relationship between mycorrhizal dependence and competitive ability of two tallgrass prairie grasses

1989 ◽  
Vol 67 (9) ◽  
pp. 2608-2615 ◽  
Author(s):  
B. A. D. Hetrick ◽  
G. W. T. Wilson ◽  
D. C. Hartnett
Keyword(s):  
Tallgrass Prairie ◽  
Mycorrhizal Fungus ◽  
Warm Season ◽  
Dry Weight ◽  
Andropogon Gerardii ◽  
Mycorrhizal Symbiosis ◽  
P Fertilization ◽  
Growing Seasons ◽  
Prairie Grasses ◽  
The Impact

The impact of mycorrhizal symbiosis on growth of Andropogon gerardii (big bluestem) and Koeleria pyranidata (junegrass) was compared. Andropogon gerardii was 98% dependent on the symbiosis, whereas K. pyranidata displayed less than 0.02% dependence. Mycorrhizal fungus inoculation resulted in 50 times larger A. gerardii plants but did not alter growth of K. pyranidata. When competing in pairs, A. gerardii dominated when the mycorrhizal symbiosis was present and K. pyranidata dominated when it was not present. Dry weight of mycorrhizal A. gerardii was altered, whether grown alone or with K. pyranidata, but mycorrhizal K. pyranidata grew well only in the absence of competition and failed to grow appreciably if A. gerardii was present. Without mycorrhizal fungus inoculation, A. gerardii did not grow and had no deleterious effects on K. pyranidata. When P fertilization was substituted for mycorrhizal fungus inoculation, A. gerardii grew better alone than in competition with K. pyranidata at low P levels but was not affected by competition at high P levels. Koeleria pyranidata was not affected by competition at low P levels, but high P fertilization resulted in reduced dry weight of K. pyranidata plants when in competition with A. gerardii. Phenologic separation of growing seasons avoids interspecific competition between these two grasses and may be one mechanism contributing toward their coexistence. Since low temperatures limit mycorrhizal nutrient uptake, phenologic separation of growing seasons could also avoid the competitive advantage of warm-season grasses conferred by their mycorrhizal dependence.

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