Coexistence of arbuscular mycorrhizae and dark septate endophytic fungi in an undisturbed and a disturbed site of an arid ecosystem

Chaudhry, M. S.; Rahman, Syed U.; Ismaiel, Muhammad S.; Sarwar, Ghulam; Saeed, Bushra; Nasim, Faiz-ul-Hassan

doi:10.1007/s13199-009-0010-5

Cited by 22 publications

(11 citation statements)

References 43 publications

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“…Chaudhry et al (2009) also reported higher spore numbers (averaging 111 spores per 100 g soil) in grasses from undisturbed and disturbed sites of an arid ecosystem in Pakistan. Gai et al (2006) reported a spore number of 10 to 300 spores per 100 g soil from grasses of southern Tibet.…”

Section: Discussionmentioning

confidence: 83%

“…It has been predicted that taxa belonging to more than 80% of the plant families are mycorrhizal. Inspite of its large family size, less than 500 species of grasses have been examined for their mycorrhizal status (Ragupathy and Mahadevan 1993;Muthukumar and Udaiyan 2000;Wang and Qiu 2006;Chaudhry et al 2005Chaudhry et al , 2006Chaudhry et al , 2009Fracchia et al 2009). …”

Section: Introductionmentioning

confidence: 99%

“…Till 1998, DSE fungal assoiciation has been reported only in 59 grasses of which only 10% are tropical grasses (Jumpponen and Trappe 1998). Since then DSE fungal occurrence has been reported for a few tropical grasses (Chaudhry et al 2005(Chaudhry et al , 2006(Chaudhry et al , 2009Muthukumar et al 2006;Muthukumar and Vediyappan 2010). These limited information on the root fungal association in grasses promoted us to evaluate the status of root fungal association in grasses of Western Ghats region.…”

Section: Introductionmentioning

confidence: 99%

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Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

2010

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Abstracts We examined arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal association in 50 south Indian grasses from four different sites. AM fungal diversity was also compared among the different sites. Forty-four of the 50 grasses examined had AM association and dual association with DSE fungi occurred in 25 grasses. We report for the first time AM and DSE fungal status in 23 and 27 grasses respectively. Arum-type AM morphology was the dominant occurring in 21 grasses with typical Paris-type colonization occurring in 6 grasses. AM morphology is reported for the first time in 35 grasses. Over the different sites, spore density in the soil ranged from 5-22 per 100 g air-dried soil. Spores of 11 AM fungal taxa were isolated from the soil samples of grasses of which nine belonged to Glomus, one to Acaulospora and one to Scutellospora. No significant relationship existed between AM fungal colonization and spore numbers. Species richness was high in site II and Glomus aggregatum, Glomus viscosum and Glomus mosseae were most frequent species at different sites. Overall species diversity indices (Simpson index, Shannon-Weaver index, species equitability index) differed significantly between sites.

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Section: Discussionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

2010

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“…We determined that the DSE-colonized plants also had AM fungal associations, as others have found (Sengupta et al 1989;Muthukumar et al 2006;Muthukumar & Tamilselvi 2010). Chaudhary et al (2009) contended that the simultaneous occurrence of DSE and AM fungi indicates the dynamic nature of the endophyte community in natural ecosystems. During unfavorable conditions, DSE fungi can function as mutualists by taking up water and nutrients from the soil and translocating them to plant roots (Mandyam & Jumpponen 2005).…”

Section: Discussionmentioning

confidence: 99%

Endorhizal Fungal Association and Colonization Patterns in Solanaceae

Muthukumar¹,

Sathya²

2017

Polish Botanical Journal

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Abstract. The Solanaceae family includes plants of high economic and medicinal value. Information on endorhizal associations in Solanaceae is limited. We investigated arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal associations in 20 solanaceous plant species (7 genera) taken from one or more sites, measuring the percentage of root length colonized in plants having different AM and DSE fungal structures. Root samples of all the plant species examined had AM fungal structures, and DSE fungal colonization was found in 80% of the plant species. Total AM and DSE fungal colonization and root length of plants with different fungal structures varied significantly between species. Significant between-site variation was found for root length in plants with fungal structures in Lycopersicon esculentum Mill., Capsicum annuum L., Datura metel L., Solanum melongena L., S. nigrum L., S. trilobatum L. and S. torvum SW. AM morphology was predominantly intermediate-type (60%), followed by Paris-type (30%). Solanum melongena and S. nigrum at different sites had Paris-type or intermediate AM morphology. DSE fungal colonization also exhibited significant between-site variation in Capsicum frutescens, C. annum, Datura metel, Solanum melongena, S. trilobatum and S. nigrum. We found a significant negative correlation between AM and DSE fungal colonization.

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“…Además, se sugiere que ocasionalmente los DSE reemplazan a los HMA y a los HECM en ecosistemas árticos y alpinos debido a las condiciones ambientales extremas, ya que estos hongos se encuentran de manera constante (Redman et al, 2002;Chaudhry et al, 2009;Upson et al, 2009b;Pan et al, 2013). Los DSE Leptodontidium sp., L. orchidicola y Phialocephala fortinii han sido registrados como colonizadores de orquídeas como Calypso bulbosa (L.) Oakes, Coeloglossum viride (L.) Hartm., Corallorhiza maculate Raf.…”

Section: Interacciones De Los Hongos Endófi Tos Septados Obscuros Conunclassified

Diversidad, ecología e importancia potencial de los hongos endófitos septados obscuros en México

et al. 2014

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La simbiosis representa una estrategia clave para el éxito de muchos grupos de organismos; de hecho, es un proceso ubicuo que ha favorecido la expresión y diversifi cación de la vida en la Tierra y contribuye en la dinámica de los nutrientes en la biosfera (Lane y Archibald, 2008). Evolutivamente, las plantas requieren de la asociación con organismos especializados que favorecen su adaptación a ciertos nichos ecológicos, y a la vez, mantienen un crecimiento y desarrollo adecuado (Yuan et al., 2010a Autor para la correspondencia: aalarconcp@gmail.comResumen: Como parte de los microorganismos endófi tos de la raíz se encuentra un grupo de hongos que por sus características morfológicas son denominados hongos endófi tos septados obscuros. Estos hongos están presentes en la mayoría de los ecosistemas terrestres y pueden cohabitar o no con los hongos micorrízicos. El conocimiento de las funciones biológicas y ecológicas de este grupo de hongos endófi tos representa un nuevo reto para quienes estudian las relaciones simbióticas. En México, a pesar de ser reconocido como uno de los países con mayor diversidad vegetal a nivel mundial, la información sobre la ecología y particularmente, sobre los benefi cios de los endófi tos mencionados en las plantas es casi nula. Lo anterior resalta la necesidad de abordar áreas de investigación emergentes relacionadas con el aislamiento, identifi cación y evaluación de los hongos endófi tos septados obscuros, para comprender mejor su biología, diversidad y sinergismo con otros microorganismos benéfi cos, con la fi nalidad de poder utilizar estos endófi tos como una herramienta biotecnológica para el desarrollo agrícola y forestal en México. Palabras clave: aplicación potencial, endófi tos septados obscuros, fósforo, micorriza, mutualismo, nitrógeno, raíz, simbiosis. Abstract:There is a group of fungi which belongs to the root endophytic microorganisms that due to their morphological characteristics are called dark septate endophytes. These fungi are present in most terrestrial ecosystems and can live together or not with mycorrhizal fungi. The understanding of the biology and ecological functions of this group of endophytes represents a new challenge for those researchers focused on the symbiotic relationships. Mexico, despite being recognized as one of the countries with the highest plant diversity worldwide, lacks of information concerning on the ecology and particularly, on the benefi ts of such fungal endophytes. The later highlights the need for studying emerging research areas related to the isolation, identifi cation and evaluation of dark septate endophytes and thus, to understand their biology, diversity and synergy with other benefi cial microorganisms. Such fundamental knowledge will allow the potential use of those fungal endophytes as a biotechnological tool for agriculture and forestry in Mexico.

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Coexistence of arbuscular mycorrhizae and dark septate endophytic fungi in an undisturbed and a disturbed site of an arid ecosystem

Cited by 22 publications

References 43 publications

Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

Endorhizal Fungal Association and Colonization Patterns in Solanaceae

Diversidad, ecología e importancia potencial de los hongos endófitos septados obscuros en México

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