Diversity of Arbuscular Mycorrhizae Fungi from Orchard Ecosystem

Ch, Angaleswari; rasekeran,; Mahalingam, P U

doi:10.4172/2157-7471.1000230

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…Studies in fruit tree orchards of different species, plant varieties and of different ages did not show differences in mycorrhizal colonization between species (ABDELHALIM et al, 2014;ANGALESWARI & MAHALINGAM, 2014;JIANG et al, 2020;MEDDAD-HAMZA et al, 2017;MOHANDAS et al, 2012), varieties (GOVINDAN et al, 2020 or the age of the orchard (MEDDAD-HAMZA et al, 2017;MOHANDAS et al, 2012).…”

Section: Effect Of Mango Varieties On Mycorrhizal Variablesmentioning

confidence: 93%

Arbuscular mycorrhizae in mango orchards in a Brazilian semi-arid region: influence of phenology, management and plant variety

Coelho,

Oliveira,

Lima

2024

Cienc. Rural

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Arbuscular mycorrhizal fungi (AMF) increase the absorption surface of roots, providing greater absorption of water and nutrients from the soil by plants. Thus, it is important to know how arbuscular mycorrhizae are affected by factors such as phenology, management and varieties in mango (Mangifera indica) orchards in the irrigated semi-arid region. With this objective, soil and root samples were collected during the vegetative, flowering and fruiting stages, and in the water stress period before flowering, always on the same trees. The study was carried out in mango orchards of the Keitt and Palmer varieties, in agricultural farms located in Juazeiro - BA and Petrolina - PE, both under conventional management (with fertilizers and paclobutazol). The soil was used to quantify the number of AMF spores and phosphorus content. Mycorrhizal colonization in roots was evaluated in qualitative terms (presence of hyphae, vesicles and arbuscles) and quantitative terms (% of colonization). Total mycorrhizal colonization was high, with averages above 65%, and higher values in the fruiting period. Colonization by vesicles and arbuscles was on average above 45% and 17%, respectively, with higher means also during fruiting. The number of AMF spores in the soil averaged over 130 spores in 50 g of soil, with higher values in the period of water stress. The phosphorus content in the soil did not influence mycorrhizal colonization and the number of spores in the soil. The association of AMF with mango trees was generally affected by management and phenology, regardless of the cultivated varieties.

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Section: Effect Of Mango Varieties On Mycorrhizal Variablesmentioning

confidence: 93%

Arbuscular mycorrhizae in mango orchards in a Brazilian semi-arid region: influence of phenology, management and plant variety

Coelho,

Oliveira,

Lima

2024

Cienc. Rural

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“…Soil biota play a critical role in nutrient cycling and maintenance of ecosystem functioning. Arbuscular mycorrhizal fungi (AMF) which are associated with over 80% of terrestrial plants provide several ecosystem services including enhanced nutrient uptake, protection against diseases and pathogens, increased tolerance to other environmental stresses, mediate nutrient cycling, and improves soil physical properties (Syibli et al, 2013;Chandrasekeran and Mahalingam, 2014;Campos et al, 2018;Chu et al, 2020). However, forest conversion influence AMF, with a decline or increase in composition and abundance (van der Heyde et al, 2017;Belay et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Phosphorus Fractions and Arbuscular Mycorrhizal Fungi as Influenced by Forest Conversion in Central Highlands of Kenya

Cheruto,

Karanja,

Kamau

2023

Trop Subtrop Agroecosyst

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Background: Forest conversion to other land use types lead to changes in soil physico-chemical properties and a reduction in soil fertility. Although forest conversion is extensively recognized to alter soil properties, the influence on distribution of soil phosphorus (P) fractions and abundance and diversity of soil biota is not well explored. Objective: To assess the effects of converting undisturbed natural forest to plantation forest (cypress), grazed pastures and potato fields on soil phosphorus (P) fractions and abundance and diversity of arbuscular mycorrhizal fungi (AMF) in Nyandarua County, Kenya. Methodology: Transects laid out in triplicate were established in each land use type. In potato fields and grazed pastures, transects measured 50 m with three sampling points established 15 m apart along each transect, each point measuring 1 m² divided into 25 grids with each grid being 400 cm². Transect length was increased to 150 m in forest sites due to relatively larger size of the area studied and sampling points were placed at 50 m apart, each point measuring 25 m² and divided into 1² m grids. Soil and plant samples were randomly collected from sampling points and were used to determine chemical properties, soil P fractions and AMF spore examination. Data were analyzed by analysis of variance (ANOVA). Results: Soil chemical properties were significantly (p<0.001) higher in natural forest compared to potato fields, grazed pasture and cypress forest. On the contrary, readily labile and moderately labile P was higher in fields cultivated with potato (125.3 mg and 258.2 mg P kg-1, respectively) than in natural forest (51.1 mg and 95.3 mg P kg-1) and cypress forest (36.4 mg and 82.7 mg P kg-1, respectively). However, non-labile P was higher in natural forest (599.1 mg P kg-1) and lower in cypress forest (251.3 mg kg-1). Of the ten AMF genera identified, only Glomus and Acaulospora were significantly (p<0.01) affected by land use change, where they were more abundant in fields cultivated with potato than the other three land use types. Land use type did not significantly influence diversity and richness in AMF. However, AMF composition varied across the land use types. Implication: Land use change may negatively affect soil chemical properties, enhance redistribution of soil P, and change AMF community composition, and this could have long-term implications on soil fertility. Conclusion: Land use change from natural ecosystems to croplands, grazed pastures and tree plantations alter soil chemical properties, AMF composition and spore abundance, and redistribute soil P fractions by increasing labile P and reducing non-labile P fractions showing that the type of land use chosen significantly influence soil physical and chemical properties and soil biodiversity.

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Can Arbuscular Mycorrhizal Fungi Enhance Crop Productivity and Quality in Hydroponics? A Meta-Analysis

Othman,

Alananbeh,

Tahat

2024

Sustainability

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Finding environmentally friendly solutions for crop growth and productivity has been gaining more attention recently. This meta-analysis aims to understand the combined application of arbuscular mycorrhizal fungi (AMF) and hydroponic systems compared to AMF in conventional (soil) systems. The analysis of up-to-date studies revealed that the root colonization, calculated as the proportion of colonized root segments relative to the total root length, by AMF in conventional (soil-based) culture exceeded hydroponic (or soilless) culture systems by 16.8%. The mean root colonization by AMF was determined to be 52.3% in hydroponic systems and 61.1% in conventional systems. Within hydroponic systems, the root colonization ranged from 2% to 20% after 10 days of inoculation, and notably, it exceeded 50% after 30 to 65 days, depending on the growing substrate and species. Under hydroponics, AMF application had a higher (compared to none-inoculated) positive effect on crop biomass and yield than fruit and leaf quality (antioxidants, phenols, and sugars) as well as leaf nutrients. However, AMF do not always have the potential to improve crop growth, quality and productivity in hydroponics. Among the studies analyzed in this review, approximately 34% (no effect: 29%; negative: 5%) reported no discernible positive effect on biomass or yield, 37% (no effect: 16%; negative: 21%) on fruit or leaf quality, and 60% (no effect: 47%; negative: 13%) on nutrient levels within plant tissues. To improve the performance of AMF in hydroponic systems, the meta-analysis recommended maintaining phosphorus levels in the nutrient solution within the range of 0.15 to 15.5 mg L−1 as elevated levels (40–75 mg L−1) were found to significantly reduce AMF colonization. Additionally, it was observed that certain hydroponic techniques, such as the presence of air bubbles generated by air pumps in floating hydroponic systems (Deep Flow technique) and continuous circulation of the nutrient solution (Ebb and Flow systems), may create dynamic conditions that could potentially hinder the introduction of AMF spores into hydroponic systems and potentially compromise the integrity of the spores and hyphae.

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Diversity of Arbuscular Mycorrhizae Fungi from Orchard Ecosystem

Cited by 3 publications

References 33 publications

Arbuscular mycorrhizae in mango orchards in a Brazilian semi-arid region: influence of phenology, management and plant variety

Arbuscular mycorrhizae in mango orchards in a Brazilian semi-arid region: influence of phenology, management and plant variety

Phosphorus Fractions and Arbuscular Mycorrhizal Fungi as Influenced by Forest Conversion in Central Highlands of Kenya

Can Arbuscular Mycorrhizal Fungi Enhance Crop Productivity and Quality in Hydroponics? A Meta-Analysis

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