The involvement of mycorrhizas in assessment of genetically dependent efficiency of nutrient uptake and use

Smith, Sarah E.; Robson, A. D.; Abbott, Lynette

doi:10.1007/978-94-011-1650-3_28

Cited by 28 publications

(20 citation statements)

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“…Many factors are associated with differences among plant genotypes in the extent to which mycorrhizal colonization benefits plant growth (Smith et al, 1992). However, before considering these factors, the experimental approaches used to study mycorrhizal dependency warrant examination.…”

Section: Mycorrhizal Dependencymentioning

confidence: 99%

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Managing Soils to Enhance Mycorrhizal Benefits in Mediterranean Agriculture

Abbott¹,

Robson²,

Scheltema

1995

Critical Reviews in Biotechnology

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Regions with Mediterranean climates (i.e., with winter rainfall and summer drought) have many different agricultural systems. However, two common features of these regions are the use of rotations of legumes and cereals, and the relatively low levels of use of phosphate fertilizer applied to phosphate-deficient soils. There is potential to increase the efficiency of use of phosphate in these environments by increasing the contribution of vesicular arbuscular (VA) mycorrhizal fungi because legumes respond to mycorrhizal colonization when phosphate is limiting plant growth. The potential to make effective use of the mycorrhizal symbiosis in Mediterranean agriculture depends on developing further understanding of several key relationships between the components of the symbiosis and the soil conditions. First, there is a need to know whether the existing level of colonization of roots by mycorrhizal fungi is less than optimal. To achieve this, a combination of an understanding of the effects of agricultural practices (as they affect the dynamics of populations of the fungi in soil) and a calibrated bioassay to predict the level of colonization of roots in the following season are required. The second relationship required is the interaction between the rate and extent of colonization of roots and the functioning of the mycorrhizas. The impact of agricultural practices on the functioning of the symbiosis also needs to be included in the analysis.

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Section: Mycorrhizal Dependencymentioning

confidence: 99%

“…Plant species, and even varieties within species, appear to differ greatly in the benefit conferred by mycorrhizal colonization (see review by Smith et al, 1992). Therefore, any consideration of the role of mycorrhizas in Mediterranean agriculture requires a consideration of mycorrhizal dependency.…”

Section: Mycorrhizal Dependencymentioning

confidence: 99%

Managing Soils to Enhance Mycorrhizal Benefits in Mediterranean Agriculture

Abbott¹,

Robson²,

Scheltema

1995

Critical Reviews in Biotechnology

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“…Critical density levels for propagules may vary with species of fungus. Furthermore, AM fungi differ in their biological characteristics such as spore dormancy period and type of propagules (Abbott et al 1992;Tommerup 1983;Tommerup and Abbott 1981) which combined with heterogeneity in distribution of infective propagules in soil will lead to difference in the proportion of each AM fungus within roots from time to time. Furthermore, AM fungi differ in their biological characteristics such as spore dormancy period and type of propagules (Abbott et al 1992;Tommerup 1983;Tommerup and Abbott 1981) which combined with heterogeneity in distribution of infective propagules in soil will lead to difference in the proportion of each AM fungus within roots from time to time.…”

Section: Relative Abundance Of Am Fungi Within Rootsmentioning

confidence: 99%

“…AM fungi must be able to colonize roots rapidly after inoculation, absorb phosphate from the soil effectively and transfer it to the plant, persist in soil and reestablish mycorrhizal symbiosis during the following seasons, and form propagules that remain viable during and after inoculum production (Abbott et al 1992;Tanu Prakash and Adholeya 2006). AM fungi must be able to colonize roots rapidly after inoculation, absorb phosphate from the soil effectively and transfer it to the plant, persist in soil and reestablish mycorrhizal symbiosis during the following seasons, and form propagules that remain viable during and after inoculum production (Abbott et al 1992;Tanu Prakash and Adholeya 2006).…”

Section: Analysis Of Biofertilizers With Am Fungal Used In Agriculturementioning

confidence: 99%

“…As well as being influenced by the presence of other soil biota, such as saprophytic fungi (Albrechtova et al 2012), the abundance and role of AM fungi are in turn influenced by soil treatments such as tillage and soil amendments (Brito et al 2012;Lehmann and Joseph 2009). However, the need for inoculation is controversial ) and cannot be determined without clear understanding of the benefits of AM fungi present in the soil and the suitability of inoculants (Abbott et al 1992). However, the need for inoculation is controversial ) and cannot be determined without clear understanding of the benefits of AM fungi present in the soil and the suitability of inoculants (Abbott et al 1992).…”

Section: Introduction To Economic Evaluation Of Environmental Contribmentioning

confidence: 99%

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