Response of 11 eucalyptus species to inoculation with three arbuscular mycorrhizal fungi

Adjoud, D.; Plenchette, Christian; Halli-Hargas, R.; Lapeyrie, Frédéric

doi:10.1007/s005720050117

Cited by 49 publications

(35 citation statements)

References 28 publications

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“…Mycorrhizal dependency not only varies among crops (Plenchette et al 1983;Khasa et al 1992;Duponnois et al 2001a), but also among plant species. This has been demonstrated for cultivars of wheat (Azcon and Ocampo 1981), soybean (Heckman and Angle 1987), corn (Toth et al 1984), millet (Krishna et al 1985), groundnut (Kesava Rao et al 1990), banana (Declerck et al 1995a), and eucalyptus (Adjoud et al 1996).…”

Section: (I) Plant Modificationsmentioning

confidence: 85%

Managing arbuscular mycorrhizal fungi in cropping systems

Plenchette¹,

Clermont-Dauphin²,

Meynard³

et al. 2005

Can. J. Plant Sci.

Self Cite

173

111

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Plencette, C., Clermont-Dauphin, C., Meynard, J. M. and Fortin, J. A. 2005. Managing arbuscular mycorrhizal fungi in cropping systems. Can. J. Plant Sci. 85: 31-40. Market globalization, demographic pressure, and environmental degradation have led us to reconsider many of our current agricultural systems. The heavy use of chemical inputs, including fertilizers and pesticides, has resulted in pollution, decreased biodiversity in intensively-farmed regions, degradation of fragile agro-ecosystems, and prohibitive costs for many farmers. Low input sustainable cropping systems should replace conventional agriculture, but this requires a more comprehensive understanding of the biological interactions within agro-ecosystems. Mycorrhizal fungi appear to be the most important telluric organisms to consider. Mycorrhizae, which result from a symbiosis between these fungi and plant roots, are directly involved in plant mineral nutrition, the control of plant pathogens, and drought tolerance. Most horticultural and crop plants are symbiotic with arbuscular mycorrhizal fungi. Mycorrhizal literature is abundant, showing that stimulation of plant growth can be mainly attributed to improved phosphorous nutrition. Although the mycorrhizal potential of its symbiosis to improve crop production is widely recognized, it is not implemented in agricultural systems. There is an urgent need to improve and widely apply analytical methods to evaluate characteristics such as, relative field mycorrhizal dependency, soil mycorrhizal infectivity, and mycorrhizal receptivity of soil. Decreased use of fertilizers, pesticides, and tillage will favour arbuscular mycorrhizal fungi. However, shifting from one system to a more sustainable one is not easy since all components of the cropping system are closely linked. Different cases, from actual agricultural practices in different countries, are analyzed to highlight situations in which mycorrhizae might or might not play a role in developing more sustainable agriculture. Key words:Cropping systems, mycorrhizae, sustainability, technical itineraries, rotation Plencette, C., Clermont-Dauphin, C., Meynard, J. M. et Fortin, J. A. 2005. Gestion des champignons mycorchiziens a arbuscules dans les systemes de culture. Can. J. Plant Sci. 85: 31-40. La globalisation mondiale du marché, la pression démographique et la dégradation de l'environnement ont, dans plusieurs parties du monde, mené à une réévaluation des systèmes agricoles actuels. Les modifications de l'environnement montrent que l'utilisation des engrais et des pesticides a atteint ses limites : pollution et perte de biodiversité dans les régions d'agriculture intensive, dégradation des systèmes agricoles les plus fragiles, coûts prohibitifs pour les producteurs les plus pauvres. L'agriculture conventionnelle doit s'orienter vers des pratiques plus durables, mais les systèmes de culture durable à faibles intrants ne pourront être viables que par une meilleure connaissance et maîtrise des interactions biologiques dans ces agro-systèmes. Les champign...

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Section: (I) Plant Modificationsmentioning

confidence: 85%

Managing arbuscular mycorrhizal fungi in cropping systems

Plenchette¹,

Clermont-Dauphin²,

Meynard³

et al. 2005

Can. J. Plant Sci.

Self Cite

173

111

View full text Add to dashboard Cite

show abstract

“…Researchers do know that the fungi are distinct. Numerous studies have shown that individual species of AM fungi differ in their ability to promote plant growth, and promotion of plant growth can depend on the particular matching of plant and fungal species (Nemec 1978, Powell et al 1982, Adjoud et al 1996, Streitwolf-Engel et al 1997, van der Heijden et al 1998a. Individual fungal species also differ in their growth response to plant species (Johnson et al 1992, Sanders and Fitter 1992, Bever et al 1996, in their response to agricultural disturbance (Schreiner andBethlenfalvay 1997, Douds andMillner 1999), and even in their ability to bind soil particles (Wright et al 1996).…”

Section: Background On Am Fungi and Plant Ecologymentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi: More Diverse than Meets the Eye, and the Ecological Tale of Why

Bever¹,

Schultz²,

Pringle³

et al. 2001

BioScience

335

204

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“…Our finding agrees with this previous study which showed that AM fungi increased early growth of 11 species of Eucalyptus. (Adjoud et al, 1996), Shoot N or P concentration of Aquilaria species were more higher in the AM seedlings than in the control ones, demonstrating that in the absence of AM associations, Aquilaria species were not capable to harvest enough N or P from the soil and keep adequate levels in their tissues, despite the major reduction in plant growth. The level of AM effectiveness of all the plant-fungus combination examined was also influenced by functional compatibility, measured as P concentrations.…”

Section: Plant Growth and Survival Ratementioning

confidence: 97%

“…ACA. Entrophospora sp might be the best choice if these A similar effectiveness of AM fungi for different plant species was reported by Adjoud et al (1996) and Aquilaria species are selected for reforestation programmes. When Aquilaria seedlings are being grown in nurseries, the cultivation methods and the degree of AM symbiosis can affect post-planting success, particularly when the seedlings are destined for degraded lands or regeneration of tropical forest.…”

Section: Conclusion and Suggestionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Increased Early Growth of Gaharu Wood Of Aquilaria malaccencsis and A. crasna Under Greenhouse Conditions

2006

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Gaharu wood stand has an important source of profits to the forest community in South and Southeast Asia tropical forest countries, but Aquilaria species have reduced in number and turn out to be endangered due to overexploitation. Today, the planting stocks of Aquilaria species are not sufficient to sustain the yield of gaharu wood and promote forest conservation. The objective of this study was to determine the effect of five arbuscular mycorrhizal (AM) fungi: Entrophospora sp., Gigaspora decipiens, Glomus clarum, Glomus sp. ZEA, and Glomus sp. ACA, on the early growth of Aquilaria malaccensis and A. crasna under greenhouse conditions. The seedlings of Aquilaria spp. were inoculated with Entrophospora sp., Gi. decipiens, Glomus clarum, Glomus sp. ZEA, Glomus sp. ACA and uninoculated (control) under greenhouse conditions. Then, percentage AM colonization, plant growth, survival rate and nitrogen (N) and phosphorus (P) content and mycorrhizal dependence (MD) were measured. The percentage AM colonization of A. malaccensis and A. crasna ranged from 83 to 97% and from 63 to 78%, respectively. Colonization by five AM fungi increased plant height, diameter, and shoot and root dry weights. N and P content of the seedlings were also increased by AM colonization. Survival rates were higher in the AM-colonized seedlings at 180 days after transplantation than those in the control seedlings. The MD of Aquilaria species was higher than 55 %. The results suggested that AM fungi can be inoculated`to Aquilaria species under nursery conditions to obtain vigorous seedlings, and the field experiment is underway to clarify the role of AM fungi under field conditions.

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Response of 11 eucalyptus species to inoculation with three arbuscular mycorrhizal fungi

Cited by 49 publications

References 28 publications

Managing arbuscular mycorrhizal fungi in cropping systems

Managing arbuscular mycorrhizal fungi in cropping systems

Arbuscular Mycorrhizal Fungi: More Diverse than Meets the Eye, and the Ecological Tale of Why

Arbuscular Mycorrhizal Fungi Increased Early Growth of Gaharu Wood Of Aquilaria malaccencsis and A. crasna Under Greenhouse Conditions

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