Ectomycorrhizal populations and growth of Shorea parvifolia (Dipterocarpaceae) seedlings regenerating under three different forest canopies following logging

Ingleby, K.; Munro, R.C.; Noor, M.; Mason, P.; Clearwater, Michael J.

doi:10.1016/s0378-1127(98)00324-7

Cited by 39 publications

(28 citation statements)

References 16 publications

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“…These factors may be responsible for the maintenance of a nutritiously better-balanced growth substrate when compared to a relatively poor mixture, provided by CZP, in which all constituents, but sucrose and agar, are minerals. Similar considerations were drawn by Lilly & Barnett (1951), Frigo & Azevedo (1986), Ingleby et al (1998), Cox & Thomas (1999), Akpomedaye & Ejechi (1999), when they stated that for many fungi, natural or semi-synthetic media provide certain substances which can meet the nutritious growth demands in a more efficient way than synthetic media.…”

Section: Resultssupporting

confidence: 58%

Growth and sporulation of Metarhizium flavoviride var. Flavoviride on culture media and lighting regimes

Onofre¹,

Miniuk²,

Barros

et al. 2001

Sci. agric. (Piracicaba, Braz.)

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Entomopathogenic fungi from the genus Metarhizium are largely used for the biological control of agricultural pests by conidia spreading on the field. Although conidia production is well studied in M. anisopliae, only few research studies were done in M. flavoviride. The present work was carried out alming to evaluate the Mycelial growth and sporulation of the entomopathogenic fungus Metarhizium flavoviride var. flavoviride growing at 27 ± 2°C on Potato-dextrose-agar (PDA), Czapek-agar (CZP) and a complete agar medium (CM) under three lighting regimes, (continuous illumination, light/dark cycle and an black light/dark cycle) were investigated. A completely randomized 3 × 3 (culture media × lighting regime) factorial design with four replicates was used. The best mycelial growth and sporulation occurred on the PDA and CM media under continuous illumination (P ≤ 0,05). Key words: Metarhizium flavoviride, mycelial growth, culture media, lighting regimes CRESCIMENTO E ESPORULAÇÃO DE Metarhizium flavoviride var. Flavoviride EM MEIOS DE CULTURA E REGIMES DE LUZRESUMO: Fungos entomopatogênicos do genêro Metarhizium são empregados no controle biológico de pragas agrícolas por meio da dispersão de seus conídios no campo. Embora a produção de conídios em M. anisopliae esteja bem estudada, poucas pesquisas a respeito existem na espécie M. flavoviride. O presente trabalho foi realizado para avaliar o efeito de três meios de cultura, batata-dextrose-ágar (BDA), Czapek-ágar (CZP) e meio completo (MC), e três regimes de luminosidade, claro contínuo, alternância com luz do dia/ escuro e luz negra/escuro, sobre o crescimento miceliano e esporulação do fungo entomopatogênico Metarhizium flavoviride var. flavoviride. O experimento foi realizado em câmara de incubação à temperatura de 27 ± 2°C. Empregou-se um delineamento experimental inteiramente casualizado, em arranjo fatorial 3°C 3 (meios de cultura e regime de luminosidade) com quatro repetições. As melhores condições para o crescimento miceliano e esporulação foram conseguidas tanto no meio de cultura BDA como no MC quando combinados com o regime claro contínuo (P ≤ 0,05). Palavras-chave: Metarhizium flavoviride, crescimento, meios de cultivo, luminosidade

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Section: Resultssupporting

confidence: 58%

Growth and sporulation of Metarhizium flavoviride var. Flavoviride on culture media and lighting regimes

Onofre¹,

Miniuk²,

Barros

et al. 2001

Sci. agric. (Piracicaba, Braz.)

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“…In non-ericaceous plants, shading usually reduces the levels of carbon-based secondary chemicals (Hartley et al 1997;Henriksson et al 2003, Ruohomäki et al 1996Iason et al 1996). In plants with ectomycorrhizal fungal symbionts, shade effects on the amount of colonisation or amounts of structures are ranging from no effect (Brearly et al 2007;Dehlin et al 2004) to decreased colonisation rates (Becker 1983;Ingleby et al 1998) or even increased colonisation rates (Prajadinata and Santoso 1993;Be'reau et al 2000). As these ectomycorrhizal fungi produce a Hartig net around the roots, we assume that they show a different response to shading compared to ericoid mycorrhizal fungi, which only proliferate within the epidermal cells of roots.…”

Section: Introductionmentioning

confidence: 99%

The effect of nutrient supply and light intensity on tannins and mycorrhizal colonisation in Dutch heathland ecosystems

Hofland-Zijlstra

Berendse

2008

Plant Ecol

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(1) Increased atmospheric nitrogen deposition has shifted plant dominance from ericaceous plants to grass species. To elucidate the reduced competitiveness of heather, we tested the hypothesis that additions of nitrogen reduce the concentrations of phenolics and condensed tannins in ericaceous leaves and retard mycorrhizal colonisation in ericaceous plants. We also tested the negative effects of reduced light intensity on carbon-based secondary compounds and mycorrhizal colonisation in ericaceous plants. (2) We performed a field inventory at three heathland sites in the Netherlands varying in nutrient supply and light intensity. Leaves of ericaceous plants and grasses were collected and analysed for concentrations of tannins, phenolics and nutrients. Similarly, we took root samples to record mycorrhizal colonisation and soil samples to measure the soil mineralisation. In addition, we conducted two-factorial experiments with Calluna vulgaris plants, in which we varied fertiliser and shade levels under greenhouse and field conditions. (3) The field inventory revealed that nitrogen addition and shading both negatively affected the concentration of total phenolics. The total phenolics and condensed tannin concentrations were positively correlated (P \ 0.001), but in the field experiment, the condensed tannins were not significantly affected by the treatments. Our results provide the first evidence that the carbon nutrient balance can be used to predict the amount of total phenolics in the dwarf shrub C. vulgaris. (4) In the field experiments, shading of plants resulted in significantly less mycorrhizal colonisation. Only in the greenhouse experiment did addition of nitrogen negatively affect mycorrhizal colonisation. (5) Our results imply that increased atmospheric nitrogen deposition can depress the tannin concentrations in ericaceous plants and the mycorrhizal colonisation in roots, thereby reducing the plants' competitiveness with respect to grasses. Additionally, if ericaceous plants are shaded by grasses that have become dominant due to increased nitrogen supply, these effects will be intensified and competitive replacement will be accelerated.

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“…Both Shorea species planted in the relatively exposed conditions of RAF generally showed higher EcM colonization than those planted in the forest site. Previous reports have shown better mycorrhization for several species of dipterocarp seedlings when they are planted under high light conditions in an open canopy rather than under closed canopy (Ingleby et al 1998;Tennakoon et al 2005;Brearley et al 2007). Gehring (2004) found a similar effect of light intensity on mycorrhization of Chrysophyllum (Apocynaceae) seedlings.…”

Section: Land History and Light Condition Effectsmentioning

confidence: 73%

“…Gehring (2004) found a similar effect of light intensity on mycorrhization of Chrysophyllum (Apocynaceae) seedlings. This suggests that higher levels of photosynthesis in more open areas support mycorrhization while a dense forest canopy limits carbohydrate availability in tree seedlings and thus also limits EcM formation and function (Ingleby et al 1998;Bucking and Heyser 2001).…”

Section: Land History and Light Condition Effectsmentioning

confidence: 99%

“…Among the Basidiomycetes, Russulaceae tend to dominate and can be studied by collecting their fruiting bodies (Smits 1994;Lee et al 1997;Ingleby et al 1998). Since the last decade molecular taxonomic techniques, such as polymerase chain reaction (PCR) and sequencing, has been used widely to identify EcM fungi from Basidiomycota and Ascomycota (Moyersoen 2006;Srikantaramas et al 2003; Kovacs and Jakucs 2006;Tedersoo et al 2006Tedersoo et al , 2007.…”

Section: Introductionmentioning

confidence: 99%

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Limited response to nursery-stage mycorrhiza inoculation of Shorea seedlings planted in rubber agroforest in Jambi, Indonesia

Tata

Noordwijk

Summerbell³

et al. 2009

New Forests

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We transplanted Shorea selanica and Shorea lamellata seedlings that either had or had not received ectomycorrhiza (EcM) Scleroderma columnare inoculum, commercially available and prescribed as standard practice in nursery, into rubber gardens of different age and plot history. The objective was to assess whether or not absence of fungal inoculants restricted seedling survival, growth, nutrient uptake and EcM formation in the first 2 years after out-planting in Jambi. Inoculation with EcM fungi in nursery had only limited positive effects on growth in height and diameter or N and P uptake, but it enhanced survival in the period 6-24 months after outplanting in all plots. With or without nursery stage inoculation, S. selanica and S. lamellata can be used for enrichment planting or reforestation in Sumatra as the species respond well to high light intensities. Presence of up to five morphotypes of EcM confirmed the availability of inoculum also in second generation rubber agroforests. Internal transcribe spacer sequencing revealed no S. columnare could be identified from the ectomycorrhizal roots of S. lamellata and S. selanica.

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Ectomycorrhizal populations and growth of Shorea parvifolia (Dipterocarpaceae) seedlings regenerating under three different forest canopies following logging

Cited by 39 publications

References 16 publications

Growth and sporulation of Metarhizium flavoviride var. Flavoviride on culture media and lighting regimes

Growth and sporulation of Metarhizium flavoviride var. Flavoviride on culture media and lighting regimes

The effect of nutrient supply and light intensity on tannins and mycorrhizal colonisation in Dutch heathland ecosystems

Limited response to nursery-stage mycorrhiza inoculation of Shorea seedlings planted in rubber agroforest in Jambi, Indonesia

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