Mycorrhizal characterization of the boojum tree, Fouquieria columnaris, an endemic ancient tree from the Baja California Peninsula, Mexico

Bashan, Yoav; Khaosaad, Thanasan; Salazar, Bernardo; Ocampo, J. A.; Wiemken, Andres; Oehl, Fritz; Vierheilig, Horst

doi:10.1007/s00468-007-0126-2

Cited by 42 publications

(30 citation statements)

References 21 publications

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“…The improved biomass production of mycorrhizal plants is likely related to plant physiological changes, where AMF can increase the uptake of N, P and K as well as the accumulation of amino acids, proteins, chlorophyll and sugar in plants (Bohrer et al 2003;Tarafdar and PraveenKumar 1996). This physiological advantage can lead to a reduction of water stress and, as a consequence, an increase in biomass of mycorrhizal plants of arid and semi-arid ecosystems (Bashan et al 2007;Caravaca et al 2003;Subramanian and Charest 2008), e.g. in Ziziphus mauritiana (Rhamnaceae) (Mathur and Vyas 2000) and L. leucocephala (Fabaceae) (Michelsen and Rosendahl 1990).…”

Section: Discussionmentioning

confidence: 99%

Effect of mycorrhizae on seedlings of six endemic Mimosa L. species (Leguminosae–Mimosoideae) from the semi-arid Tehuacán–Cuicatlán Valley, Mexico

Camargo‐Ricalde

Montaño

Reyes-Jaramillo

et al. 2009

Trees

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Mimosa is an important genus of legumes in arid and semi-arid ecosystems of the world, but scarce information is available about its interaction with microbial symbionts. In Mexico, there are no reports on the responsive of endemic Mimosa species to arbuscular mycorrhizal (AM) fungal colonization. In this study, the AM association with seedlings of six endemic Mimosa species, M. adenantheroides, M. calcicola, M. lacerata, M. luisana, M. polyantha and M. texana var. filipes, is reported. Field conditions were simulated in the greenhouse. Seeds were collected from plants and soil from the localities where the species occur within the semi-arid Tehuacán-Cuicatlán Valley, Mexico. Four treatments were applied: (1) control, (2) benomyl, (3) phosphorus, and (4) benomyl plus phosphorus. Mycorrhizal seedlings of five species, M. adenantheroides, M. lacerata, M. luisana, M. polyantha and M. texana var. filipes, showed a higher shoot and total dry weight than non-mycorrhizal seedlings. The only species that did not show any difference between mycorrhizal and non-mycorrhizal seedling performance was M. calcicola. M. luisana, M. polyantha and M. texana var. filipes had a higher root/shoot ratio; in general, benomyl treatments promoted seedling biomass allocation to the root, while control, phosphorus and benomyl plus phosphorus treatments decrease root/shoot ratio. Shoot P content was significantly higher in mycorrhizal than in non-mycorrhizal plants, although no significant differences were found for M. adenantheroides in all treatments. Benomyl and benomyl plus phosphorus treatments reduced AM colonization in all the species under study. Benomyl significantly reduced the number of N 2 -fixing root nodules, while the phosphorus treatment generally stimulated nodulation. The species M. lacerata, M. luisana, M. polyantha and M. texana var. filipes had a high mycorrhizal dependency index indicating that plant growth was strongly increased by arbuscular mycorrhiza activity. Our results indicate that the response of all Mimosa species to mycorrhization was highly variable. To our knowledge, this is the first report about the effect of AM fungi and phosphorus on Mimosa species, which may be useful in biodiversity and soil conservation programs.

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Section: Discussionmentioning

confidence: 99%

Effect of mycorrhizae on seedlings of six endemic Mimosa L. species (Leguminosae–Mimosoideae) from the semi-arid Tehuacán–Cuicatlán Valley, Mexico

Camargo‐Ricalde

Montaño

Reyes-Jaramillo

et al. 2009

Trees

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“…Comparing our results with those found in other endemic plants species, AMF species richness associated with S. elegans was of the same magnitude as that detected in Fouquieria columnaris (Kell) Kell. (23 species) endemics of Mexico (Bashan et al, 2007), and 5-6-fold that of other registered endemic plants such as Dubautia menziesii (A. Gray) Keck D (4 species) Gemma, 2002) and P. bromelioides (3 species) Scotti, 2009).…”

Section: Resultsmentioning

confidence: 99%

“…The occurrence of mycorrhizal association in endemic plants has been reported previously in the literature (Bashan et al, 2007;Flynn, 1992;Gemma, 2002;Silva et al, 2001), however, reports on the mycorrhizal status of Eriocaulaceae plants are scarce. Mycorrhizal colonization up to 20% was registered in Tonina fluviatilis Aubl.…”

Section: Introductionmentioning

confidence: 97%

Species richness and root colonization of arbuscular mycorrhizal fungi in Syngonanthus elegans, an endemic and threatened species from the Cerrado domain in Brazil

et al. 2016

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Syngonanthus elegans is an endangered plant species occurring in the Brazilian Cerrado whose interaction with arbuscular mycorrhizal fungi (AMF) is poorly understood. The aim of this work was to evaluate the occurrence of AMF species and mycorrhizal colonization of S. elegans in two sampling areas named "Soberbo" stream (Soberbo) and "Parque Nacional das Sempre-Vivas" (Park), both found in Diamantina-MG, Brazil. In each area, one plot (100 x 100 m) was established, and roots and soil samples near the roots were collected from 10 plants in each plot. Further sampling included three specimens each of Loudetiopsis chrysothrix and Xyris sp.. Typical mycorrhizal colonization structures were observed in S. elegans roots, and colonization was measured at 75%. Considering both sites and all three hosts, 26 AMF species were recovered, 8 of which were identified only at the genus level. Glomus sp. 1, Scutellospora pernambucana, Acaulospora cavernata and Acaulospora mellea were classified as dominant in both areas. Other species were also considered dominant, including Glomus sp. 4 in Soberbo and Dentiscutata biornata and Gigaspora albida in Park. Trap cultures revealed the presence of seven additional species. For S. elegans, AMF species richness was slightly higher in Park than in Soberbo. Simpson diversity and evenness were slightly higher in Soberbo for S. elegans-associated AMF communities. Overall, S. elegans is highly colonized by arbuscular mycorrhizal fungi and is associated with a wide range of AMF species in the field, suggesting that this association is important for the establishment and survival of this threatened species. Some of the observed species may be new to science.Index terms: Fungal diversity; star flowers; Rupestrian fields. RESUMOSyngonanthus elegans é uma espécie vegetal em vias de extinção que ocorrem no Cerrado brasileiro, cuja interação com fungos micorrízicos arbusculares (FMA) é deficientemente compreendida. O objetivo deste trabalho foi avaliar a ocorrência de espécies de FMA e colonização micorrízica de S. elegans. Em duas áreas de amostragem denominadas Córrego do Soberbo (Soberbo) e Parque Nacional das Sempre-Vivas (Parque), ambas localizadas em Diamantina-MG, Brasil, uma parcela de 100 x 100 m foi estabelecida e solo da rizosfera e raízes foram coletados de 10 plantas em cada parcela. Além disso, amostragem incluiu três espécimes de cada Loudetiopsis chrysothrix e Xyris sp.. Estruturas típicas de colonização micorrízica foram observadas nas raízes de S. elegans e a colonização medida foi de 75%. Considerando as duas áreas e os três hospedeiros, 26 espécies de FMA foram recuperados, 8 delas identificadas apenas até gênero. Glomus sp. 1, Scutellospora pernambucana, Acaulospora cavernata e Acaulospora mellea foram classificados como dominantes em ambas as áreas. Além dessas, também foram consideradas dominantes Glomus sp. 4 em Soberbo, e Dentiscutata biornata e Gigaspora albida no Parque. Culturas armadilhas revelaram a presença de sete espécies adicionais. Para S. elegans, a rique...

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“…Generally, success of plants growing on harsh environment depends on their ability to associate with microorganisms (Puente et al 2004a;b;Bashan et al 2007). Plants growing in different environments are colonized by arbuscular mycorrhizal (AM) fungi belonging to Glomeromycota, and it is one of the most widespread associations among land plants (Smith & Read 2008).…”

Section: Introductionmentioning

confidence: 99%

Root fungal associations in some non-orchidaceous vascular lithophytes

2016

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Plant roots in natural ecosystems are colonized by a diverse group of fungi among which the most common and widespread are arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungi. Th ough AM and DSE fungal associations are well reported for terricolous plant species, they are rather poorly known for lithophytic plant species. In this study, we examined AM and DSE fungal association in 72 non-orchidaceous vascular plant species growing as lithophytes in Siruvani Hills, Western Ghats of Tamilnadu, India. Sixty-nine plant species had AM and 58 species had DSE fungal associations. To our knowledge, we report AM fungal association in 42 and DSE fungal association in 53 plant species for the fi rst time. Th ere were signifi cant diff erences in total root length colonization and root length colonized by diff erent AM and DSE fungal structures among plant species. In contrast, the diff erences in AM and DSE fungal colonization among plants in various life-forms and lifecycles were not signifi cant. AM morphology reported for the fi rst time in 56 plant species was dominated by intermediate type AM morphology. A signifi cant negative relationship existed between total root length colonized by AM and DSE fungi. Th ese results clearly suggest that AM and DSE fungal associations are widespread in lithophytes.

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Mycorrhizal characterization of the boojum tree, Fouquieria columnaris, an endemic ancient tree from the Baja California Peninsula, Mexico

Cited by 42 publications

References 21 publications

Effect of mycorrhizae on seedlings of six endemic Mimosa L. species (Leguminosae–Mimosoideae) from the semi-arid Tehuacán–Cuicatlán Valley, Mexico

Effect of mycorrhizae on seedlings of six endemic Mimosa L. species (Leguminosae–Mimosoideae) from the semi-arid Tehuacán–Cuicatlán Valley, Mexico

Species richness and root colonization of arbuscular mycorrhizal fungi in Syngonanthus elegans, an endemic and threatened species from the Cerrado domain in Brazil

Root fungal associations in some non-orchidaceous vascular lithophytes

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