ECTOMYCORRHIZA FORMATION IN <i>EUCALYPTUS</i>

Malajczuk, N.; Molina, Randy; Trappe, James M.

doi:10.1111/j.1469-8137.1982.tb03325.x

Cited by 162 publications

(83 citation statements)

References 49 publications

(21 reference statements)

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“…comm. ), Eucalyptus spp., in general, can form both AM and ECM associations (Jones, Durall & Tinker, unpublished ;Malajczuk et al, 1981 ;Malajczuk, Molina & Trappe, 1982). In some systems, arbuscular mycorrhizas are the more abundant type initially, with ectomycorrhizas succeeding them over a period of months (Lapeyrie & Chilvers, 1985 ;Chilvers et al, 1987) ; however, the relative abundance of the two types of mycorrhizas can be influenced by the types of host plants previously grown on the site (Oliveira et al 1997).…”

Section: mentioning

confidence: 99%

A comparison of arbuscular and ectomycorrhizal Eucalyptus coccifera: growth response, phosphorus uptake efficiency and external hyphal production

1998

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Eucalyptus coccifera Hook., a plant capable of forming both arbuscular mycorrhizas and ectomycorrhizas, was used to compare the effects of the two mycorrhizal types on phosphorus uptake and C allocation. Seedlings were grown in a P-deficient soil\sand mixture inoculated with peat\vermiculite spawn of Laccaria bicolor (Maire) Orton or Thelephora terrestris (Ehrh.) Fr. ; or with 250-µm sievings from leek colonized by Glomus caledonium (Nicol. & Gerd.) Trappe & Gerde., Glomus sp. type E3 or Glomus mosseae (Nicol. & Gerd.) Gerd. & Trappe or with autoclaved spawn (non-mycorrhizal control). Before the 89-d harvest, a subset of the harvested plants was labelled with "%C (45-60-min pulse, 202-h chase). Growth promotion and the increase in seedling P content was largest in the two ectomycorrhizal treatments. Production of fluorescein diacetate-stained external hyphae was three to seven times higher by ectomycorrhizal (ECM) fungi compared with arbuscular mycorrhizal (AM) fungi and was highly correlated with P uptake and shoot weight. Phosphorus inflow rates of ECM and AM seedlings were 3n8 times, and 2n0-2n7 times those of non-mycorrhizal seedlings. Phosphorus acquisition efficiencies were similar (11n2 and 10n0 µmol P mmol −" C for T. terrestris and Glomus E3 plants, respectively) for the two mycorrhizal types, and appeared to be greater than in uninoculated plants (7.2 µmol P mmol −" C) grown at the same P level.

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Section: mentioning

confidence: 99%

A comparison of arbuscular and ectomycorrhizal Eucalyptus coccifera: growth response, phosphorus uptake efficiency and external hyphal production

1998

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“…Early studies by Malajczuk et al (1982) showed few differences in the ectomycorrhiza-forming ability of several eucalypt species from geographically distinct areas with several fungi, including Pisolithus, thus indicating no evidence for Eucalyptus fungus-specificity. However, this observation was not confirmed since Eucalyptus species form little or no association with P. tinctorius strains originally isolated from pine (Burgess et al, 1994;Malajczuk et al, 1990;Oliveira et al, 1994).…”

Section: Introductionmentioning

confidence: 98%

Compatibility and ectomycorrhiza formation among Pisolithus Isolates and Eucalyptus spp

Pereira¹,

Costa

Borges

et al. 2005

Rev. Bras. Ciênc. Solo

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SUMMARYTwenty-nine isolates of the ectomycorrhiza fungus Pisolithus sp. from different geographical and host origins were tested for their ability to form ectomycorrhizae on Eucalyptus grandis and E. urophylla seedlings under greenhouse conditions. The ectomycorrhiza-forming capacity of isolates varied greatly from one eucalypt species to the other. All isolates from Eucalyptus, nine from Pinus spp. and two isolates from unknown hosts formed mycorrhizae with E. grandis and E. urophylla. Root colonization rates varied from 0 to 5.2 % for all Pinus isolates and those from unknown hosts. Colonization rates for these isolates were lower than those observed for Eucalyptus isolates (0.8 to 89.4 %). Three isolates from unknown hosts formed mycorrhizae with neither Eucalyptus species. The main characteristic for distinguishing Pinus from Eucalyptus isolates was mantle color. These data corroborate previous results obtained in our laboratory indicating that the isolates tested represent at least two distinct different species within the genus Pisolithus. Index terms: ectomycorrhiza colonization, Eucalyptus grandis, Eucalyptusurophylla, morphological characterization, sclerotia. RESUMO: COMPATIBILIDADE E FORMAÇÃO DE ECTOMICORRIZAS ENTRE ISOLADOS DE Pisolithus E Eucalyptus SPP

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“…Moreover eucalypts do not form ectomycorrhizas with many of the northern hemisphere fungi including Rhizopogon spp. (Malajczuk, Molina and Trappe, 1982).…”

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confidence: 99%

ACCUMULATION OF CALCIUM OXALATE IN THE MANTLE OF ECTOMYCORRHIZAL ROOTS OF PINUS RADIATA AND EUCALYPTUS MARGINATA

1982

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SUMMARYCalcium oxalate crystals occur in the mantle of ectotnycorrhizal roots of Pinus radiata and Eucalyptus marginata. Dense concentrations of these crystals were observed in association with the fungal symbiont of both tree species. It is suggested that oxalate production may enhance nutrient uptake by ectomycorrhizal roots of forest species gromng in nutrient impoverished soils. Concentrations of Ca^ S^ K and P were similar in mycorrhizal root masses of P. radiata and ii. marginata.

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ECTOMYCORRHIZA FORMATION IN EUCALYPTUS

Cited by 162 publications

References 49 publications

A comparison of arbuscular and ectomycorrhizal Eucalyptus coccifera: growth response, phosphorus uptake efficiency and external hyphal production

A comparison of arbuscular and ectomycorrhizal Eucalyptus coccifera: growth response, phosphorus uptake efficiency and external hyphal production

Compatibility and ectomycorrhiza formation among Pisolithus Isolates and Eucalyptus spp

ACCUMULATION OF CALCIUM OXALATE IN THE MANTLE OF ECTOMYCORRHIZAL ROOTS OF PINUS RADIATA AND EUCALYPTUS MARGINATA

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