Effect of vesicular–arbuscular mycorrhizal fungi and phosphorus on the survival and growth of flowering dogwood (<i>Cornus florida</i>)

Sylvia, David M.

doi:10.1139/b86-127

Cited by 9 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mycorrhizal infection may also alter the composition of the microbial community in the rhizosphere (Ames, Reid & Ingham, 1984), alter the susceptibility of the host to pathogens (Gianinazzi-Pearson & Gianinazzi, 1983) and pests such as nematodes (Hussey & Roncadori, 1982) and alter host cytokinin concentration (Allen, Moore & Christensen, 1980). The symbiosis may also be responsible for increasing the survival of Cornus florida seedlings independent of phosphorus nutrition (Sylvia, 1986), possibly as a result of increasing root length and water uptake. Plenchette, Furlan & Fortin (1983 c?…”

Section: Mycorrhizal Effects Not Related To Phosphorusmentioning

confidence: 99%

Nutrient supply, nutrient demand and plant response to mycorrhizal infection

1991

View full text Add to dashboard Cite

summary One of the most dramatic effects of infection by vesicular‐arbuscular mycorrhizal fungi on the physiology of the host plant is an increase in phosphorus absorption. When phosphorus is limiting, the maximum extent to which mycorrhizal infection can improve plant performance is thus predicted to be a function of the phosphorus deficit of the plant, the difference between phosphorus demand and phosphorus supply. Phosphorus demand is defined as the rate of phosphorus absorption that would result in optimum performance of the plant as measured by growth rate, reproduction or fitness. The phosphorus supply is defined as the actual rate of phosphorus absorption under the prevailing conditions. Variation among plant taxa in morphological, physiological or phenological traits which affect either phosphorus demand or phosphorus supply (and thus phosphorus deficit) is predicted to lead to variation in potential response to mycorrhizal infection. The actual response to mycorrhizal infection is predicted to be a function of the increase in phosphorus uptake due to mycorrhizal infection and the phosphorus utilization efficiency of the plant. Demonstrated variability in responsiveness to mycorrhizal infection among plant taxa suggests that mycorrhizal fungi may play an important role in determining the structure of plant communities. Mycorrhizal infection may alter the phosphorus deficit or phosphorus utilization efficiency independently from its direct effect on phosphorus uptake, making the prediction of response to mycorrhizal infection based on the traits of non‐mycorrhizal plants quite difficult. For example, infection may at times increase the rate of phosphorus accumulation beyond that which can be currently utilized in growth, reducing the current phosphorus utilization efficiency. Such momentary ‘luxury consumption’ of phosphorus may, however, serve a storage function and be utilized subsequently, allowing mycorrhizal plants ultimately to outperform non‐mycorrhizal plants.

show abstract

Section: Mycorrhizal Effects Not Related To Phosphorusmentioning

confidence: 99%

Nutrient supply, nutrient demand and plant response to mycorrhizal infection

1991

View full text Add to dashboard Cite

show abstract

“…Sylvia (1986) tested mycorrhizal dependency by using two AM fungi Glomus intraradices and G. etunicatum with three different levels of available phosphorus. Azcon and Barea (1997) suggested mycorrhizal dependency for a representative plant species in Mediterranean shrubs (Lavandula spica L.) as a key factor in its use for re-vegetation strategies in desertificationthreatened areas.…”

Section: Introductionmentioning

confidence: 99%

Response of kidney bean to arbuscular mycorrhizal inoculation and mycorrhizal dependency in P and Zn deficient soils

Ortaş

Akpınar

2006

Acta Agriculturae Scandinavica, Section B - Soil & Plant Sc

View full text Add to dashboard Cite

Since most of the Central Anatolian soils are P and Zn deficient, mycorrhizae may help plants to obtain sufficient nutrients from the soil without the need to apply additional chemical fertilizers. As far as is known, some plants are strongly mycorrhizal dependent for P nutrition, but less is known about the mycorrhizal dependence with Zn nutrition. Hypotheses were tested under P and Zn deficient soils to find out whether kidney bean plants are mycorrhizal dependent or not. Kidney bean (Phaseolus vulgaris L.) plants were grown for 8 weeks in two widely distributed calcareous clay soils with low nutrient content from Central Anatolian Sultanö nü and Konya soils (sterilized by autoclaving). The experiment was conducted with three levels of phosphorus (0, 25, 125 mg P kg (1 soil), and two rates of Zn (0 and 5 mg Zn kg (1 soil) Two selected arbuscular mycorrhizal (AM) species (Glomus mosseae and G. etunicatum) were inoculated. In the Sultanö nü soil, mycorrhizal inoculation increased plant growth and P and Zn uptake. The positive effect of mycorrhizal inoculation on plant P content and uptake was found to be higher when higher levels of phosphorus were applied. The soil from Konya with a high concentration of boron inhibited normal growth of kidney bean plants. Mycorrhizal root colonization was different with mycorrhizal inoculation. Root colonization was not affected by P and Zn application, but it has been shown that the plant is strongly dependent on P nutrition, especially at low P application levels. However, although mycorrhizal inoculation increased plant concentration of Zn, plants were less dependent on Zn nutrition.

show abstract

“…Nonetheless, VA mycorrhizal fungi vary in their sensitivity to P (Abbott, Robson & Gazey, 1987;Lamar & Davey, 1988;Schubert & Hayman, 1986;Sylvia, 1986;Trouvelot, Gianinazzi & Gianinazzi-Pearson, 1987). Fertilization may result in the selection of fungi that can colonize plants of high P content.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen affects the phosphorus response of VA mycorrhiza

1990

View full text Add to dashboard Cite

SUMMARYRoot colonization by vesicular-arbuscular (VA) mycorrhizal fungi is often suppressed by phosphorus (P) additions; however, nitrogen (N) additions have been reported to both stimulate and suppress root colonization. Tbe objective of tbis researcb was to examine colonization of Alliutn cepa L. roots at a range of P and N concentrations in order to clarify tbe effects of tbese nutrients on root colonization. In tbe first experiment, conducted under N-limiting conditions, P addition bad no effect on root colonization by Glomus etunicatum Becker & Gerdemann and increased root colonization by Gigaspora margarita Gerdemann and Trappe. In tbe second experiment, conducted under N-sufficient conditions, P addition suppressed colonization by G. etunicatum. In tbe tbird experiment, P and N additions were sucb tbat tissue P:N ratios ranged from 0-03 (P limiting) to 0-17 (N limiting). No relationsbip was found between P:N ratio and root colonization for two isolates of G. etunicatum. Root colonization was not affected by P addition wben plants were deficient in N but, wben N was sufficient, P addition suppressed root colonization. Tbese results demonstrate tbat plant N stress affects tbe resistance of tbe bost root to colonization by VA mycorrbizal fungi.

show abstract

Effect of vesicular–arbuscular mycorrhizal fungi and phosphorus on the survival and growth of flowering dogwood (Cornus florida)

Cited by 9 publications

References 0 publications

Nutrient supply, nutrient demand and plant response to mycorrhizal infection

Nutrient supply, nutrient demand and plant response to mycorrhizal infection

Response of kidney bean to arbuscular mycorrhizal inoculation and mycorrhizal dependency in P and Zn deficient soils

Nitrogen affects the phosphorus response of VA mycorrhiza

Contact Info

Product

Resources

About