Use of Mycorrhiza Bioassays in Ecological Studies

Djuuna, Irnanda Aiko Fifi; Abbott, Lynette; Solaiman, Zakaria

doi:10.1007/978-3-540-95894-9_3

Cited by 5 publications

(3 citation statements)

References 59 publications

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“…Bioassays for AM fungi have many limitations, such as time of soil sampling, previous crop, fallow period, and P status of the soil (Djuuna et al 2009). Even though the bioassay results showed increased microbial activity, mycorrhizal colonisation, plant growth, and P nutrition when biochar was applied in the field with mineral or low level of soluble fertiliser, it is necessary to carry out several bioassays in different times throughout the cropping season to fully assess the interactions among biochar, fertilisers, farming systems, and microbes in WA soils.…”

Section: Discussionmentioning

confidence: 99%

Direct and residual effect of biochar application on mycorrhizal root colonisation, growth and nutrition of wheat

Blackwell²,

et al. 2010

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The influence of biochar (biomass-derived black carbon) on crop growth and nutrient uptake varies based on the rate of biochar applied with fertilisers. We investigated the effect of deep-banded oil mallee biochar at different rates (0, 1.5, 3.0, and 6 t/ha) with 2 types of fertiliser (non-inoculated MultiMAPS ® at 30 or 55 kg/ha; inoculated Western Mineral Fertiliser at 100 kg/ha) on wheat growth at a farmer's field in a low rainfall area of Western Australia. Wheat yield increased significantly when biochar was applied with inoculated fertiliser and 30 kg/ha non-inoculated fertiliser. Mycorrhizal colonisation in wheat roots increased significantly with biochar application with inoculated mineral fertiliser. Mycorrhizal hyphae may have improved water supply to reduce drought stress in these treatments by extending crop exploration of water from the wide inter-rows. Grain yield increases were due to better grain survival and grain fill with reduced drought stress. Early stage phosphorus uptake was not improved by mycorrhizal colonisationphosphorus supply from the soil and applied fertiliser was already adequate. The residual effect of biochar and mineral fertilisers was assessed using a mycorrhizal bioassay for soil collected from the field trial 2 years after application of biochar. Biochar and both fertilisers increased mycorrhizal colonisation in clover bioassay plants. Deep-banded biochar provided suitable conditions for mycorrhizal fungi to colonise plant roots.

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Section: Discussionmentioning

confidence: 99%

Direct and residual effect of biochar application on mycorrhizal root colonisation, growth and nutrition of wheat

Blackwell²,

et al. 2010

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“…However, the bioassay environment may differ from the field conditions. Djuuna et al (2009) explained that Bioassays have the potential to assist in predicting how roots might become colonized in field soils, but calibrations are necessary. The number of spores in this study (2-20 spores/10 gram of soil) are slightly higher than those reported by Suharno et al (2016), which ranged from 8 to 12 spores/10 gram of soil.…”

Section: Discussionmentioning

confidence: 99%

Distribution of Arbuscular Mycorrhiza Fungi (AM Fungi) in different plants within tailings deposition areas of Freeport Indonesia, Timika, Central Papua, Indonesia

DJUUNA,

MAY,

KUBANGUN

et al. 2023

Biodiversitas

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Abstract. Djuuna IAF, May NL, Kubangun SH, Massora M, Aibini SW. 2023. Distribution of Arbuscular Mycorrhiza Fungi (AM Fungi) in different plants within tailings deposition areas of Freeport Indonesia, Timika, Central Papua, Indonesia. Biodiversitas 24: 4515-4522. This study investigated the presence of Arbuscular Mycorrhiza Fungi (AM Fungi) in various vegetation types within tailings deposition areas in Freeport Timika, Papua. Soil and root samples were collected from 41 sampling locations, representing 28 types of vegetation growing in these areas. AM Fungi spores were extracted using the wet sieving technique, while root samples were cleaned, stained, and analyzed for the percentage of root infection using the gridlines method. Some soil characteristics were also analyzed, including pH (H2O), moisture content, organic carbon (C), Total nitrogen (N) and phosphorus (P), and soil texture. The study showed low total soil N and P levels, with organic C ranging from low to high and a pH range from 6 to 6.7. The spore number ranged from 2 to 20 spores/10 g soil, and the percentage of root colonization varied from 17 to 89.5%. The highest number of spores (20 spores/10 g soil) was found in the rhizosphere of Homalanthus sp. and Polyalthia glauca, while the highest percentage of root colonization (89.5%) was observed under Pandanus sp. at Upper ADA. Notably, the highest number of spores did not correspond to the highest percentage of infected roots. Additionally, four genera of AM Fungi, namely Glomus, Acaulospora, Scuttelospora and Gigaspora, were found to thrive in tailings areas and have the potential to be developed as biofertilizers for tailings rehabilitation programs.

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“…Murphy et al (2007) reported that the performance of microbial inoculants in the field can be inconsistent. Measurement of mycorrhizal colonization of roots is usually used in bioassays with commercial products, but calibrations that take into account an understanding of the relationships between mycorrhizal colonization and soil conditions are necessary (Djuuna et al 2009). Consistency of plant responsiveness to inoculation with selected strains of AM fungi should be a prerequisite to adoption of AM inoculation practices.…”

Section: Analysis Of Biofertilizers With Am Fungal Used In Agriculturementioning

confidence: 99%

Biofertilizers with Arbuscular Mycorrhizal Fungi in Agriculture

Weber

2014

Soil Biology

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Use of Mycorrhiza Bioassays in Ecological Studies

Cited by 5 publications

References 59 publications

Direct and residual effect of biochar application on mycorrhizal root colonisation, growth and nutrition of wheat

Direct and residual effect of biochar application on mycorrhizal root colonisation, growth and nutrition of wheat

Distribution of Arbuscular Mycorrhiza Fungi (AM Fungi) in different plants within tailings deposition areas of Freeport Indonesia, Timika, Central Papua, Indonesia

Biofertilizers with Arbuscular Mycorrhizal Fungi in Agriculture

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