Diversity of fungal endophytes from the medicinal plant Dendropanax arboreus in a protected area of Mexico

Ramos-Garza, Juan; Rodríguez-Tovar, Aída Verónica; Flores-Cotera, Luis B.; Rivera-Orduña, Flor N.; Vásquez-Murrieta, María Soledad; Ponce‐Mendoza, Alejandro; Wang, En Tao

doi:10.1007/s13213-015-1184-0

Cited by 15 publications

(12 citation statements)

References 42 publications

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“…oxysporum colonizes only plants from places that are free from contamination with heavy metals [29,45,73,80,81]. Our results confirm this observation, since isolates of F .…”

Section: Discussionsupporting

confidence: 83%

Endophytic fungal communities of Polygonum acuminatum and Aeschynomene fluminensis are influenced by soil mercury contamination

et al. 2017

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The endophytic fungal communities of Polygonum acuminatum and Aeschynomene fluminensis were examined with respect to soil mercury (Hg) contamination. Plants were collected in places with and without Hg +2 for isolation and identification of their endophytic root fungi. We evaluated frequency of colonization, number of isolates and richness, indices of diversity and similarity, functional traits (hydrolytic enzymes, siderophores, indoleacetic acid, antibiosis and metal tolerance) and growth promotion of Aeschynomene fluminensis inoculated with endophytic fungi on soil with mercury. The frequency of colonization, structure and community function, as well as the abundant distribution of taxa of endophytic fungi were influenced by mercury contamination, with higher endophytic fungi in hosts in soil with mercury. The presence or absence of mercury in the soil changes the profile of the functional characteristics of the endophytic fungal community. On the other hand, tolerance of lineages to multiple metals is not associated with contamination. A. fluminensis depends on its endophytic fungi, since plants free of endophytic fungi grew less than expected due to mercury toxicity. In contrast plants containing certain endophytic fungi showed good growth in soil containing mercury, even exceeding growth of plants cultivated in soil without mercury. The data obtained confirm the hypothesis that soil contamination by mercury alters community structure of root endophytic fungi in terms of composition, abundance and species richness. The inoculation of A. fluminensis with certain strains of stress tolerant endophytic fungi contribute to colonization and establishment of the host and may be used in processes that aim to improve phytoremediation of soils with toxic concentrations of mercury.

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“…oxysporum colonizes only plants from places that are free from contamination with heavy metals [29,45,73,80,81]. Our results confirm this observation, since isolates of F .…”

Section: Discussionsupporting

confidence: 83%

Endophytic fungal communities of Polygonum acuminatum and Aeschynomene fluminensis are influenced by soil mercury contamination

et al. 2017

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“…In the current research the molecular identification of the chitosanase producer fungal isolate showed 99% similarity with Dothideomycetes sp. Kirk et al, [25] reported that Dothideomycetes was the largest and the most diverse class of Ascomycetes and it was reported to produce chitosanase by Ramos-Garza et al, [26] and Zeiner et al, [27].…”

Section: Discussionmentioning

confidence: 99%

Optimization of Dothideomycetes sp. css035 chitosanase productivity and activity using response surface methodology

Hashem

Hosny

Awad³

et al. 2018

Egypt. J. Chem.

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A MONG the methods used for the hydrolysis of chitosan, enzymatic hydrolysis using chitosanase was selected in order to produce high yield of specific chitooligosaccharides with less environmental pollutions. The production of Dothideomycetes sp. NRC-SSW extracellular chitosanase was statistically optimized in which a two -phase experimental design was applied. Plackett -Burman design was used to evaluate the relative importance of culture conditions and medium components for chitosanase production. Chitosan concentration, agitation speed and incubation period were found to be the most significant variables that affected the chitosanase production and their optimal values were obtained by applying Box-Behnken design. The optimized medium composed of (g/L) chitosan, 30; K 2 HPO 4 , 1.5; MgSO 4 , 0.4; KCl, 4.0; yeast extract, 18.5 and FeSO 4 ,0.01; at pH 5.5, 30°C and 180rpm for 96h gave 13.9U/mL with 36.3% increase in the activity. The R 2 value was 0.954 and this indicated the aptness of the model. The optimization of the hydrolytic conditions required for chitooligosaccharides production was also performed by Box-Behnken design. The highest yield of chitooligosaccharides was obtained with enzyme/ substrate ratio 0.05U/mg in 0.2M Tris HCl buffer incubation at 60 ο C for 5h. The cytotoxic activity of the chitooligosaccharides was tested in vitro against Hep-G2 and MCF7.

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“…Endophytes were also found from the medicinal tree "Cuachalalate" (Amphiterygium adstringens), and these endophytes could be used in the production of chemicals to treat cancer or bacterial infections in humans [5]. From the medicinal plant "Mano de oso" (Dendropanax arboreous), scientists discovered endophytes that could produce chemicals to fight against noxious microbes that make humans sick [6].…”

Section: Endophytes From Plants Growing In Mexicomentioning

confidence: 99%

Hidden Microbial Helpers Living Inside Plants: Getting to Know Endophytes and Some of Their Applications in Our Daily Lives

Flores-Vallejo¹,

Folch-Mallol²,

Sharma³

et al. 2019

Front. Young Minds

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Diversity of fungal endophytes from the medicinal plant Dendropanax arboreus in a protected area of Mexico

Cited by 15 publications

References 42 publications

Endophytic fungal communities of Polygonum acuminatum and Aeschynomene fluminensis are influenced by soil mercury contamination

Endophytic fungal communities of Polygonum acuminatum and Aeschynomene fluminensis are influenced by soil mercury contamination

Optimization of Dothideomycetes sp. css035 chitosanase productivity and activity using response surface methodology

Hidden Microbial Helpers Living Inside Plants: Getting to Know Endophytes and Some of Their Applications in Our Daily Lives

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