High colonization by native arbuscular mycorrhizal fungi (AMF) of rubber trees in small-holder plantations on low fertility soils in North East Thailand

Herrmann, Laetitia; Bräu, Lambert; Robin, Agnès; Robain, Henri; Wiriyakitnateekul, Wanpen; Lesueur, Didier

doi:10.1080/03650340.2015.1110238

Cited by 10 publications

(10 citation statements)

References 25 publications

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“…Jayaratne [18] and Ikram et al [19] found that the extent of root AMF colonization ranged from 0 to 50%, and Glomus and Acaulospora were the most common AMF genera in Sri Lanka and Malaysia, respectively. Herrmann et al [20] found that roots of H. brasiliensis were highly colonized by AMF, whereas the colonization level was not affected by either soil nutrient levels or tree ages. Previous studies mainly focused on AM morphological structures and AMF populations associated with the roots of H. brasiliensis in a natural ecosystem, less is reported for island plantation ecosystems in Southeast Asia.…”

Section: Introductionmentioning

confidence: 99%

Species Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Hevea brasiliensis in Hainan Island, China

Gao¹,

Lv²,

Guo³

et al. 2021

Phyton

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Hevea brasiliensis is one of the important economic trees with a great economic value for natural rubber production. Symbiosis between roots of H. brasiliensis and arbuscular mycorrhizal fungi (AMF) is widely recognized, and can provide a range of benefits for both of them. Hainan Island harbors is one of the largest plantations of H. brasiliensis in China, whereas the information regarding the diversity of AMF in the rhizosphere of H. brasiliensis on this island is scarce. The diversity of AMF species in the rhizosphere of rubber tree plantations in Hainan was investigated in this study. A total of 72 soil samples from the rhizosphere of H. brasiliensis RY7-33-97 were collected. These included 48 samples from plantations in 11 cities or counties that had been planted for 15-25 years, and 24 samples from a demonstrating plantation site of the China National Rubber Tree Germplasm Repository representing plantations with tree plantation ages from one to 40 year-old. Collectively, a total of 68 morphotypes of AMF, belonging to the genera of Archaeospora (1), Glomus (43), Acaulospora (18), Entrophospora (3), Scutellospora (2), and Gigaspora (1) were isolated and identified, as per morphological characteristics of spores presented in the collected soil samples. Glomus (Frequency, F = 100%) and Acaulospora (F = 100%) were the predominant genera, and A. mellea (F = 63.9%) and A. scrobiculata (F = 63.9%) were the predominant species. AMF species differed significantly among collected sites in spore density (SD, 290.7-2,186.7 spores per 100 g dry soil), species richness (SR, 4.3-12.3), and Shannon-Weiner index of diversity (H, 1.24-2.24). SD was negatively correlated with available phosphorus level in the soil; SR was positively correlated with soil total phosphorus content; and H was positively correlated with levels of soil organic matter and total phosphorus. Similarly, SD, SR, and H were also correlated with H. brasiliensis plantation age, and an increasing trend was observed up to 40 years. These results suggest that the AMF community was complex and ubiquitous in the island plantation ecosystems of H. brasiliensis, with high species abundance and diversity. Soil factors and plantation age dramatically affected AMF diversity at species level.

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Section: Introductionmentioning

confidence: 99%

Species Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Hevea brasiliensis in Hainan Island, China

Gao¹,

Lv²,

Guo³

et al. 2021

Phyton

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“…En numerosos estudios se ha demostrado las ventajas de la inoculación con hongos micorrízicos arbusculares en suelos de baja fertilidad (Herrmann et al, 2015). El efecto más importante que producen los HMA en los cultivos es un incremento en la absorción y traslocación de nutrimentos del suelo como N, P, K, Ca, y Mg (Säle et al, 2015) que se traduce en un mayor crecimiento y desarrollo de las plantas, así como un mayor porcentaje de sobrevivencia al trasplante (Rodríguez et al, 2017).…”

Section: Introductionunclassified

“…Numerous studies have demonstrated the advantages of inoculation with arbuscular mycorrhizal fungi in low fertility soils (Herrmann et al, 2015). The most important effect of HMA on crops is an increase in the uptake and translocation of soil nutrients such as N, P, K, Ca, and Mg (Säle et al, 2015), which translates into higher growth and development of plants, as well as a higher percentage of transplant survival (Rodríguez et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Efecto de diferentes niveles de fósforo en aguacate (Persea americana) inoculado con hongos micorrízicos arbusculares

Bañuelos¹,

Sangabriel-Conde²,

Gavito³

et al. 2017

Remexca

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ResumenLos hongos micorrízicos arbusculares (HMA) son una alternativa biológica para aumentar la absorción del fósforo y reducir el uso excesivo de fertilizantes fosfatados. El objetivo de este trabajo fue evaluar el efecto de diferentes concentraciones de fertilización fosforada en plantas de aguacate con y sin micorriza. Para el experimento se utilizó un diseño factorial con dos factores: inoculante micorrízico (con tres niveles: Rizofermic-UV, Pacispora scintillans y sin inocular) y fertilización con fósforo (con cinco niveles: sin fertilizante, 20, 40, 80 y 160 ppm; utilizando H2PO4 como fuente de fertilizante), cada tratamiento con cuatro repeticiones. A 401 días después de la inoculación se evaluó altura, diámetro, numero de hojas, área foliar, tasa de crecimiento, peso fresco y seco y porcentaje de colonización micorrízica. Las variables se analizaron con una prueba de Fisher, considerando significativo un valor de p< 0.05. El tratamiento con 160 ppm causó la muerte de las plantas a los 150 días, mientras que plántulas inoculadas más 20 ppm mostraron un incremento en variables de crecimiento significativo (p< 0.05) con respecto al testigo. Tanto plantas inoculadas con Rizofermic-UV como con P. scintillans AbstractThe arbuscular mycorrhizal fungi (HMA) are a biological alternative to increase the absorption of phosphorus and reduce the excessive use of phosphate fertilizers. The objective of this work was to evaluate the effect of different concentrations of phosphorus fertilization on avocado plants with and without mycorrhiza. A factorial design was used with two factors: mycorrhizal inoculant (with three levels: Rizofermic-UV, Pacispora scintillans and uninoculated) and fertilization with phosphorus (with five levels: without fertilizer, 20, 40, 80 and 160 ppm; using H2PO4 as fertilizer source), each treatment with four replicates. 401 days after inoculation, height, diameter, number of leaves, leaf area, growth rate, fresh and dry weight and percentage of mycorrhizal colonization were evaluated. Variables were analyzed using a Fisher's test, with a significance level of p< 0.05. being considered significant. The treatment with 160 ppm caused the death of the plants at 150 days, while inoculated seedlings plus 20 ppm showed an increase in significant growth variables (p< 0.05) with respect to the control. Both plants inoculated with Rizofermic-UV and P. scintillans showed a significant increase in growth1510 Rev. Mex. Cienc. Agríc. Vol.8 Núm. 7 27 de septiembre -11 de noviembre, 2017 Jacob Bañuelos et al.mostraron un incremento significativo en variables de crecimiento con respecto al testigo (p< 0.05). Las plantas inoculadas con P. scintillans y además con un tratamiento de 20 ppm de fósforo, promueven el mayor incremento en las variables de crecimiento. La micorrización tuvo efectos positivos y significativos sobre el desarrollo de las plantas inoculadas respecto de las plantas control.Palabra clave: inoculante, fertilización, fósforo, micorriza. IntroducciónEl fósforo (P) es uno de los nutrientes lim...

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“…Certains auteurs affirment que les exsudations racinaires de l'hévéa contiennent des substances antifongiques du type hévéine qui in vitro ou en culture en pots retardent considérablement la mycorhization ou conduisent à un faible pourcentage de colonisation (0 -15%) du clone PB 260 par la souche R. irregularis MUCL 41833 (Sosa Rodriguez et al, 2013). D'autres auteurs ont plutôt observé un bon pourcentage de colonisation au champ (> 60%) du clone RRIM 600 par des isolats de Glomus et/ou Acaulospora (Basumatary et al, 2014;Herrmann et al, 2016). Ces résultats, en apparence contrastés, semblent être fonction du génotype des clones ou des isolats du micro-symbionte.…”

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“…Bien que contraire aux résultats in vitro sur le clone PB 260 par la souche Rhizophagus irregularis MUCL 41833 obtenus par (Slavokhotova et al, 2014;Sosa Rodriguez et al, 2013;Van Parijs et al, 1991), nos résultats confortent ceux d'autres chercheurs. En effet, ceux-ci ont plutôt observé un bon pourcentage de colonisation (> 60%) des clones RRIM par des isolats de Glomus et/ou d'Acaulospora (Basumatary et al, 2014;Herrmann et al, 2016). Il nous semble que ces résultats contrastés soient fonction du génotype d'hévéa et/ou des isolats mycorhiziens utilisés.…”

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Interaction entre Rhizophagus irregularis DAOM 197198, exsudats racinaires antifongiques du type hévéine et stress hydrique chez le clone d’hévéa IRCA 331 greffé au clone GT1

Tienebo¹,

Kouabenan²,

Kouadio³

et al. 2019

J.Anim.Plant Sci.

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1 RESUME Cette étude avait pour objectifs d’évaluer sous serre l’effet des exsudats racinaires de type hévéine sur la mycorhization de l’hévéa et la résistance induite par Rhizophagus irregularis DAOM 197198 contre le stress hydrique chez le clone d’hévéa IRCA 331 greffé sur le GT1. Dans un dispositif en blocs de Fisher, la colonisation de plants de la variété de tomate UC82B et d’hévéa cultivés dans un même pot ou individuellement a été valuée 15 jours post incoculation, date à laquelle tous les plants de tomate ont été rétirées avant le test de stress hydrique. Vingt-huit jours après inoculation, les mêmes plants d’hévéa ont ensuite été soumis à 3 niveaux de stress hydrique conférés par une capacité de rétention d’eau du pot maintenue à 5%, 50% ou 100% durant 14 jours. Il en est résulté que le clone d’hévéa a une très bonne intensité de mycorhization (> 70%) et une bonne abondance arbusculaire (> 40 %). Ces résultats suggèrent que R. irregularis DAOM 197198 possèderait un mécanisme de résistance aux exsudats antifongiques du type hévéine. Par ailleurs, la comparaison des indices de réflectance photochimique sous stress des plants non mycorhizés et ceux mycorhizés démontrent clairement que la mycorhization améliore significativement la résistance des plants au stress hydrique. La mycorhization pourrait donc substantiellement engendrer des économies de coûts d’irrigation et de fertilisation en pépinière. Toutefois, ces résultats doivent être confirmés par des tests au champ. ABSTRACT The study objectives were to investigate the effect of hevein-like root exudates on rubber tree mycorrhization and inoculation effect of Rhizophagus irregularis DAOM 197198 on water stress tolerance of the rubber tree clone IRCA 331 grafted on GT1 rootstock. The colonization rate of tomato UC82B and rubber plants grown in same or individual pot was evaluated in a randomized complete blocks design set up in a glasshouse, 14 days post inoculation. After colonization assessment, all tomato plants were removed before water stress test begin. Twenty-eight days after inoculation, the rubber plants were subjected to 3 levels of water stress conferred by a pot water holding capacity maintained at 5%, 50% or 100%. We found that the clone has a very good mycorrhization intensity (> to 70%) and a good arbuscular abundance (> to 40%). These results suggest that R. irregularis DAOM 197198 has a mechanism of resistance to hevein-like antifungal root exudates. In addition, the comparison of the photochemical reflectance indexes under stress of non-mycorrhized and mycorrhized plants clearly shows that mycorrhization significantly improves the resistance of the plants to water stress. Mycorrhization could therefore substantially reduce irrigation and fertilization costs. However, these results must be confirmed by field tests.

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High colonization by native arbuscular mycorrhizal fungi (AMF) of rubber trees in small-holder plantations on low fertility soils in North East Thailand

Cited by 10 publications

References 25 publications

Species Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Hevea brasiliensis in Hainan Island, China

Species Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Hevea brasiliensis in Hainan Island, China

Efecto de diferentes niveles de fósforo en aguacate (Persea americana) inoculado con hongos micorrízicos arbusculares

Interaction entre Rhizophagus irregularis DAOM 197198, exsudats racinaires antifongiques du type hévéine et stress hydrique chez le clone d’hévéa IRCA 331 greffé au clone GT1

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