Uma lista de espécies de plantas tropicais brasileiras naturalmente infectadas com micorriza vesicular-arbuscular

John, Ted St.

doi:10.1590/1809-43921980101229

Cited by 25 publications

(7 citation statements)

References 2 publications

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“…As per previous studies of Ilangamudali and Senarathnel ( 2016) and St. John (1980), root geometry with its age was found to be a consideration for the VAM and weed association.…”

Section: Resultssupporting

confidence: 86%

“…In addition, different weeds were supported for different mycorrhizal colonization percentages in their root systems and different spore population in the rhizosphere. St. John (1980) had found that trees of the order Asterales were heavily mycorrhizal and Brundrett (2009) found that plants of the family Caryophyllaceae to which S. media belongs were non-mycorrhizal.…”

Section: Resultsmentioning

confidence: 99%

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Investigation of possible vesicular arbuscular mycorrhizal associations in prevalent weeds in tea lands of Badulla

Ranasinghe,

Prematilake,

Silva

et al. 2021

J. Agric. Val. Add.

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A study was carried out to investigate the possible vesicular arbuscular mycorrhizal (VAM) associations in prevalent weeds in selected tea lands of Badulla. Roots of Ageratum conyzoides, Axonopus compressus, Bidens pilosa, Borreria latifolia, Cleome rutidosperma, Drymaria cordata, Eleusine indica, Erigeron sumatrensis and Oxalis corniculata were collected from Wewessa, Spring Valley and Telbedde estates. Colonization percentages and spore counts were calculated using the Grid and Doncaster’s counting disc methods, respectively. Rhizosphere soil of highly VAM associated weeds were tested for soil phosphorous and all weeds were tested for soil pH. The highest colonization percentage was recorded as 60.39% with A. compressus. The highest spore number was counted as 187 per 5 g soil with B. latifolia. The lowest soil phosphorus level was measured as 4.17 ppm with A. conyzoides. There was a systematic moderate positive correlation between, root colonization percentages and soil pH. In conclusion, there was a close association of VAM with selected nine weed species.

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“…As per previous studies of Ilangamudali and Senarathnel ( 2016) and St. John (1980), root geometry with its age was found to be a consideration for the VAM and weed association.…”

Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Investigation of possible vesicular arbuscular mycorrhizal associations in prevalent weeds in tea lands of Badulla

Ranasinghe,

Prematilake,

Silva

et al. 2021

J. Agric. Val. Add.

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“…Neea , Guapira and Pisonia are genera in the tribe Pisonieae within the Nyctaginaceae (Bittrich & Kühn, 1993). The ectomycorrhizal state of several Neea and Guapira species and of Pisonia grandis has been documented (Singer & Araujo, 1979; Janos, 1980a,b; St. John, 1980a,b; Ashford & Allaway, 1982, 1985; Alexander & Högberg, 1986; Tester et al ., 1987; Moyersoen, 1993; Béreau et al ., 1997).…”

Section: Discussionmentioning

confidence: 99%

“…Torrubia , Harley & Smith, 1983) and Pisonia (Ashford & Allaway, 1982). Ectomycorrhizal Neea species were found in the Amazonian rainforest (Singer & Araujo, 1979; Janos, 1980a,b) and in Peru (Alexander & Högberg, 1986), ecto‐ and arbuscular mycorrhizal Neea species were reported from an Amazonian lowland rain forest (St. John, 1980a,b), from the south of Venezuela (Moyersoen, 1993) and from French Guiana (Béreau et al ., 1997).…”

Section: Introductionmentioning

confidence: 99%

Russulaceae and Thelephoraceae form ectomycorrhizas with members of the Nyctaginaceae (Caryophyllales) in the tropical mountain rain forest of southern Ecuador

et al. 2004

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Summary• Three members of the Nyctaginaceae, two Neea species and one Guapira species, occurred scattered within a very species-rich neotropical mountain rain forest. The three species were found to form ectomycorrhizas of very distinctive characters, while all other tree species examined formed arbuscular mycorrhizas.• The ectomycorrhizas were structurally typified according to light and transmission electron microscope investigations. The internal transcribed spacer (ITS) rDNA and part of the nuclear large subunit (LSU, 28S) rDNA of the mycorrhiza forming fungi were amplified and sequenced. Phylogenetic analyses were carried out.• Neea species 1 was found to form typical ectomycorrhizas with five different fungal species, Russula puiggarii , Lactarius sp., two Tomentella or Thelephora species, and one ascomycete. Neea species 2 and the Guapira species were associated with only one fungus each, a Tomentella/Thelephora species clustering closely together in an ITS-neighbour-joining tree. The long and fine rootlets of the Guapira species showed proximally a hyphal mantle and a Hartig net, but distally intracellular fungal colonization of the epidermis and root hair development. The ectomycorrhizal segments of the long roots of Neea species 2 displayed a hyphal mantle and a Hartig net around alive root-hair-like outgrowths of the epidermal cells.• The distribution and the evolution of ectomycorrhizas in the predominantly neotropic Nyctaginaceae are discussed.

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“…The ectomycorrhizal status of Eucalyptus has been known for almost a century (Samuel 1926), and the benefits of the symbiosis have been commercially exploited in many countries (e.g., St. John 1980, Zambolim & Barros 1982, Coelho et al 1997.…”

Section: Introductionmentioning

confidence: 99%

Ectomycorrhizal fungi associated with the roots of planted Eucalyptus grandis in northeastern Brazil

Coelho¹

2018

CREAM

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Eucalyptus, like other members of the family Myrtaceae, form symbiotic associations with various ectomycorrhizal fungi. The purpose of this study was to assess the ectomycorrhizal taxa associated with Eucalyptus plantations in the municipalities of Gloria do Goita and Moreno, Pernambuco, Brazil. Root-tip samples were collected from Eucalyptus grandis trees to identify the ectomycorrhizal and other root-associated fungi present. Twelve taxa of fungi were determined from the root-tips collected in these two plantations. Four taxa were identified to species, and five were identified as putative ectomycorrhizae. Scleroderma albidum was the only species found both fruiting and in the root-tip study. Overall, species of Tomentella were the dominant taxa present in the two study areas.

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Uma lista de espécies de plantas tropicais brasileiras naturalmente infectadas com micorriza vesicular-arbuscular

Cited by 25 publications

References 2 publications

Investigation of possible vesicular arbuscular mycorrhizal associations in prevalent weeds in tea lands of Badulla

Investigation of possible vesicular arbuscular mycorrhizal associations in prevalent weeds in tea lands of Badulla

Russulaceae and Thelephoraceae form ectomycorrhizas with members of the Nyctaginaceae (Caryophyllales) in the tropical mountain rain forest of southern Ecuador

Ectomycorrhizal fungi associated with the roots of planted Eucalyptus grandis in northeastern Brazil

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