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Velázquez-Hernández JM, Ruíz-Corral JA, Durán-Puga N, Macías MÁ, González-Eguiarte DR, Santacruz-Ruvalcaba F, García-Romero GE, Gallegos-Rodríguez A. Ecogeography of Dioscorea remotiflora Kunth: An Endemic Species from Mexico. Plants (Basel) 2023; 12:3654. [PMID: 37896117 PMCID: PMC10610169 DOI: 10.3390/plants12203654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
Dioscorea remotiflora, a perennial climbing herbaceous plant native to Mexico, produces tubers with great nutritional and ethnobotanical value. However, most ecological aspects of this plant remain unknown, which limits its cultivation and use. This is why the objective of this research was to characterize the ecogeography of D. remotiflora as a source to determine its edaphoclimatic adaptability and current and potential distribution. A comprehensive database encompassing 480 geo-referenced accessions was assembled from different data sources. Using the Agroclimatic Information System for México and Central America (SIAMEXCA), 42 environmental variables were formulated. The MaxEnt model within the Kuenm R package was employed to predict the species distribution. The findings reveal a greater presence of D. remotiflora in harsh environments, characterized by arid to semiarid conditions, poor soils, and hot climates with long dry periods. Niche modeling revealed that seven key variables determine the geographical distribution of D. remotiflora: precipitation of the warmest quarter, precipitation of the driest month, minimum temperature of the coldest month, November-April solar radiation, annual mean relative humidity, annual moisture availability index, and May-October mean temperature. The current potential distribution of D. remotiflora is 428,747.68 km2. Favorable regions for D. remotiflora coincide with its current presence sites, while other suitable areas, such as the Yucatán Peninsula, northeast region, and Gulf of Mexico, offer potential expansion opportunities for the species distribution. The comprehensive characterization of Dioscorea remotiflora, encompassing aspects such as its soil habitats and climate adaptation, becomes essential not only for understanding its ecology but also for maximizing its economic potential. This will enable not only its sustainable use but also the exploration of commercial applications in sectors such as the pharmaceutical and food industries, thus providing a broader approach for its conservation and optimal utilization in the near future.
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Affiliation(s)
- Jocelyn Maira Velázquez-Hernández
- Department of Agricultural Production, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico; (J.M.V.-H.); (N.D.-P.); (D.R.G.-E.); (F.S.-R.)
| | - José Ariel Ruíz-Corral
- Department of Environmental Sciences, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico;
| | - Noé Durán-Puga
- Department of Agricultural Production, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico; (J.M.V.-H.); (N.D.-P.); (D.R.G.-E.); (F.S.-R.)
| | - Miguel Ángel Macías
- Department of Environmental Sciences, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico;
| | - Diego Raymundo González-Eguiarte
- Department of Agricultural Production, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico; (J.M.V.-H.); (N.D.-P.); (D.R.G.-E.); (F.S.-R.)
| | - Fernando Santacruz-Ruvalcaba
- Department of Agricultural Production, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico; (J.M.V.-H.); (N.D.-P.); (D.R.G.-E.); (F.S.-R.)
| | - Giovanni Emmanuel García-Romero
- Environment Department of the Municipality of Guadalajara, Av. Miguel Hidalgo y Costilla 426, Downtown, Guadalajara 44100, Jalisco, Mexico;
| | - Agustín Gallegos-Rodríguez
- Departmento de Producción Forestal, CUCBA, University of Guadalajara, Cam. Ramón Padilla Sánchez 2100, Las Agujas, Zapopan 45110, Jalisco, Mexico;
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Rivera-Rodríguez DM, Mastretta-Yanes A, Wegier A, De la Cruz Larios L, Santacruz-Ruvalcaba F, Ruiz Corral JA, Hernández B, Sánchez González JDJ. Genomic diversity and population structure of teosinte (Zea spp.) and its conservation implications. PLoS One 2023; 18:e0291944. [PMID: 37819917 PMCID: PMC10566683 DOI: 10.1371/journal.pone.0291944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/09/2023] [Indexed: 10/13/2023] Open
Abstract
The wild species of the genus Zea commonly named teosintes, comprise nine different taxa, distributed from northern Mexico to Costa Rica. Although this genus of plants has been extensively studied from a morphological, ecogeographical and genetic point of view, most contributions have been limited to the study of a few populations and taxa. To understand the great variability that exists between and within teosinte species, it is necessary to include the vast majority of known populations. In this context, the objective of this work was to evaluate the diversity and genomic structure of 276 teosinte populations. Molecular analyzes were performed with 3,604 plants and with data from 33,929 SNPs. The levels of genetic diversity by taxonomic group show a marked difference between species, races and sections, where the highest values of genomic diversity was found in ssp. parviglumis and ssp. mexicana. The lower values were obtained for the Luxuriantes section as well as ssp. huehuetenagensis of the section Zea. The results of structure show that there is a great genetic differentiation in all the taxonomic groups considered. For ssp. parviglumis and mexicana, which are the taxa with the largest number of populations, a marked genomic differentiation was found that is consistent with their geographic distribution patterns. These results showed a loss of diversity in several teosinte populations, making a strong case for further collection, and ex situ and in situ conservation. Also, this study highlights the importance of integrating genomic diversity and structure for the applications of conservation and management.
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Affiliation(s)
- Diana María Rivera-Rodríguez
- Departamento de Ciencias Básicas, Tecnológico Nacional de México, Instituto Tecnológico de Tlajomulco, Tlajomulco de Zúñiga, Jalisco, México
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - Alicia Mastretta-Yanes
- Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, Ciudad de México, Mexico
| | - Ana Wegier
- Laboratorio de Genética de la Conservación, Jardín Botánico, Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Lino De la Cruz Larios
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - Fernando Santacruz-Ruvalcaba
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - José Ariel Ruiz Corral
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - Benjamín Hernández
- Departamento de Ciencias Básicas, Tecnológico Nacional de México, Instituto Tecnológico de Tlajomulco, Tlajomulco de Zúñiga, Jalisco, México
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Espinosa-Antón AA, Zamora-Natera JF, Zarazúa-Villaseñor P, Santacruz-Ruvalcaba F, Sánchez-Hernández CV, Águila Alcántara E, Torres-Morán MI, Velasco-Ramírez AP, Hernández-Herrera RM. Application of Seaweed Generates Changes in the Substrate and Stimulates the Growth of Tomato Plants. Plants (Basel) 2023; 12:1520. [PMID: 37050146 PMCID: PMC10096834 DOI: 10.3390/plants12071520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Ulva ohnoi is a cosmopolitan green seaweed with commercial potential given the biomass that may be generated. We evaluated the effects of substrate changes induced by U. ohnoi application on the vegetative response of tomato plants under greenhouse conditions. First, the decomposition dynamics and N release of the dry seaweed biomass were studied using the litterbag method. Subsequently, we evaluated the effect of seaweed powder (SP) or seaweed extract (SE) applications on substrate and plant growth. Additionally, the growth parameters responses evaluated were related to the changes in substrate properties associated with each treatment. The results showed that the dry seaweed biomass has a rapid rate of degradation (k = 0.07 day-1) and N release (k = 0.024 day-1). The SP application improved the physicochemical and biological characteristics of the substrate by increasing the availability of minerals, the fungi:bacteria ratio, and the growth morphophysiological parameters (length, area, dry and fresh weight), chlorophyll and mineral content. In contrast, SE treatment showed a positive effect on the root, mineral content, and soil microbes. This study highlights the agricultural potential of U. ohnoi powder as an alternative supplement that supports nutrition and promotes the vegetative growth of plants cultivated in soilless horticultural systems.
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Affiliation(s)
- Adrian Alejandro Espinosa-Antón
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Juan Francisco Zamora-Natera
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Patricia Zarazúa-Villaseñor
- Departamento de Desarrollo Rural Sustentable, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Fernando Santacruz-Ruvalcaba
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Carla Vanessa Sánchez-Hernández
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Edith Águila Alcántara
- Departamento de Agronomía, Facultad de Ciencias Agropecuarias, Universidad Central “Marta Abreu” de Las Villas, Santa Clara 54830, Cuba
| | - Martha Isabel Torres-Morán
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Ana Paulina Velasco-Ramírez
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
| | - Rosalba Mireya Hernández-Herrera
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan 45200, Mexico
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Martinez-Rodriguez A, Beltran-Garcia C, Valdez-Salas B, Santacruz-Ruvalcaba F, Di Mascio P, Beltran-Garcia MJ. Micropropagation of Seed-Derived Clonal Lines of the Endangered Agave marmorata Roezl and Their Compatibility with Endophytes. Biology 2022; 11:biology11101423. [PMID: 36290326 PMCID: PMC9598202 DOI: 10.3390/biology11101423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/03/2022] [Accepted: 09/21/2022] [Indexed: 11/29/2022]
Abstract
Simple Summary The wild Agave marmorata Roezl has been classified as an endangered species. Extracting these plants from the forest for commercial purposes and long maturation periods of close to 30 years have contributed to their loss. A. marmorata interacts with pollinators and other Agaves species to maintain genetic variability. Thus, the conservation and restoration of the agave ecosystem is an ecological challenge. Typically, agave micropropagation use meristem or leaves as explants to rapidly produce uniform agave plants in age and size on a large scale leading to homogeneous plantations. However, introducing these clones to the field reduces genetic variability. This study evaluated in vitro micropropagation of A. marmorata from seeds to generate clonal lines. The selected seedlings exhibited variations in multiplication capacity and stable tissue formation. Variations in clonal lines could be exploited to produce high-quality plants with different capacities, such as faster propagation, enhanced stress adaptation, and continued growth under nutrient limitation conditions, consequently maintaining genetic variability. Furthermore, some clonal lines were inoculated with four endophytic bacteria to identify other differences among these plants, including endophyte-host compatibility. Variable responses to inoculation were observed among clonal lines. We found that Achromobacter xylosoxidans was compatible, unlike Enterobacter cloacae which caused plant death. Abstract A. marmorata is the raw material used for tepextate mescal production but is classified as an endangered species. In the present study, we obtain and multiply clonal lines of Agave marmorata Roezl by selecting seedlings derived from seeds. Ten seedlings from two lots of 400 germinated seeds were selected for axillary bud proliferation induced by BAP 5 mg/L in vitamin-free Murashige and Skoog’s medium. Differences in shoot numbers, heights and senescent tissue formation were observed. Notably, the AM32 line formed 84 shoots and presented low senescent tissue after 60 d of culture. We also selected the AM31 and AM33 clonal lines. Four-month shoots were extracted with 80% methanol in water to determine the total content of saponins, flavonoids, and phenolic acids and compare the three clonal lines. Some bioactive molecules were identified using HPLC techniques and MALDI-TOF mass spectrometry none showed significant differences in content. Additionally, plants derived from the clonal lines were inoculated with four endophytic bacteria. Among these, Achromobacter xylosoxidans supported plant growth of AM32. A notable effect of plant death was observed after inoculation with Enterobacter cloacae, an endophyte of A. tequilana. Additionally, Pseudomonas aeruginosa, an endophyte from A. marmorata, reduced biomass. Our results demonstrate the incompatibility of A. marmorata to E. cloacae and specialization between the host plant and its endophytes. The compatibility of the plant-endophyte could be exploited to boost the establishment and stability of mutualisms to benefit plant development, stress tolerance and pathogen resistance. The differences in multiplication capacity, stable tissue formation, and endophyte biotization responses may indicate genetic variability. Clonal selection and micropropagation from seed-derived plants could contribute to conserving the endangered A. marmorata plant for reforestation in their natural habitats, thus, assuring mass propagation for sustainable industrial production of mescal, bioactive compounds, and prebiotics.
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Affiliation(s)
- America Martinez-Rodriguez
- Engineering Institute, Universidad Autónoma de Baja California, Mexicali 21280, Baja California, Mexico
- Lab 309-E Building, Chemistry Department, Universidad Autónoma de Guadalajara, Zapopan 45129, Jalisco, Mexico
| | - Celia Beltran-Garcia
- Lab 309-E Building, Chemistry Department, Universidad Autónoma de Guadalajara, Zapopan 45129, Jalisco, Mexico
| | - Benjamin Valdez-Salas
- Engineering Institute, Universidad Autónoma de Baja California, Mexicali 21280, Baja California, Mexico
| | - Fernando Santacruz-Ruvalcaba
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan 45110, Jalisco, Mexico
| | - Paolo Di Mascio
- Departament of Biochemistry, Institute of Chemistry, University of São Paulo, Sao Paulo 05508-000, Brazil
- Correspondence: (P.D.M.); (M.J.B.-G.)
| | - Miguel J. Beltran-Garcia
- Lab 309-E Building, Chemistry Department, Universidad Autónoma de Guadalajara, Zapopan 45129, Jalisco, Mexico
- Departamento de Biotecnologicas y Ambientales, Universidad Autónoma de Guadalajara, Zapopan 45129, Jalisco, Mexico
- Correspondence: (P.D.M.); (M.J.B.-G.)
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Delgado-Aceves L, González-Arnao MT, Santacruz-Ruvalcaba F, Folgado R, Portillo L. Indirect Somatic Embryogenesis and Cryopreservation of Agave tequilana Weber Cultivar 'Chato'. Plants (Basel) 2021; 10:plants10020249. [PMID: 33525378 PMCID: PMC7911407 DOI: 10.3390/plants10020249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
UNLABELLED Agave tequilana Weber cultivar 'Chato' represents an important genetic supply of wild severely in decline populations of 'Chato' for breeding and transformation programs. In this work, the indirect somatic embryogenesis and cryopreservation of Somatic Embryos (SEs) were investigated using the 'Chato' cultivar as a study case. METHODS Embryogenic calli were induced by the cultivation of 1 cm of young leaves from in vitro plants on MS semisolid medium supplemented with 24.84, 33.13, 41.41, 49.69, and 57.98 μM 4-amino-3,5,6-trichloro-2- pyridinecarboxylic acid (picloram) in combination with 2.21, 3.32, and 4.43 μM 6-benzylaminopurine (BAP). The origin and structure of formed SEs were verified by histological analysis. Cryopreservation studies of SEs were performed following the V-cryoplate technique and using for dehydration two vitrification solutions (PVS2 and PVS3). RESULTS The highest average (52.43 ± 5.74) of produced SEs and the Embryo Forming Capacity (estimated index 52.43) were obtained using 49.69 µM picloram and 3.32 µM BAP in the culture medium. The highest post-cryopreservation regrowth (83%) and plant conversion rate (around 70%) were achieved with PVS2 at 0 °C for 15 min. CONCLUSION Our work provides new advances about somatic embryogenesis in Agave and reports the first results on cryopreservation of SEs of this species.
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Affiliation(s)
- Lourdes Delgado-Aceves
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan 45200, Mexico; (L.D.-A.); (F.S.-R.)
| | - María Teresa González-Arnao
- Laboratorio de Biotecnología y Criobiología Vegetal, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba 94340, Mexico;
| | - Fernando Santacruz-Ruvalcaba
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan 45200, Mexico; (L.D.-A.); (F.S.-R.)
| | - Raquel Folgado
- Huntington Library, Art Museum, and Botanical Gardens, San Marino, CA 91108, USA;
| | - Liberato Portillo
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan 45200, Mexico; (L.D.-A.); (F.S.-R.)
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González-González MF, Ocampo-Alvarez H, Santacruz-Ruvalcaba F, Sánchez-Hernández CV, Casarrubias-Castillo K, Becerril-Espinosa A, Castañeda-Nava JJ, Hernández-Herrera RM. Physiological, Ecological, and Biochemical Implications in Tomato Plants of Two Plant Biostimulants: Arbuscular Mycorrhizal Fungi and Seaweed Extract. Front Plant Sci 2020; 11:999. [PMID: 32765545 PMCID: PMC7379914 DOI: 10.3389/fpls.2020.00999] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 06/17/2020] [Indexed: 05/14/2023]
Abstract
The worldwide use of plant biostimulants (PBs) represents an environmentally friendly tool to increase crop yield and productivity. PBs include different substances, compounds, and growth-promoting microorganism formulations, such as those derived from arbuscular mycorrhizal fungi (AMF) or seaweed extracts (SEs), which are used to regulate or enhance physiological processes in plants. This study analyzed the physiological, ecological, and biochemical implications of the addition of two PBs, AMF or SE (both alone and in combination), on tomato plants (Solanum lycopersicum L. cv. "Rio Fuego"). The physiological responses evaluated were related to plant growth and photosynthetic performance. The ecological benefits were assessed based on the success of AMF colonization, flowering, resistance capacity, nonphotochemical quenching (NPQ), and polyphenol content. Biochemical effects were evaluated via protein, lipid, carbohydrate, nitrogen, and phosphorous content. Each PB was found to benefit tomato plants in a different but complementary manner. AMF resulted in an energetically expensive (high ETRMAX but low growth) but protective (high NPQ and polyphenol content) response. AMF + nutritive solution (NS) induced early floration but resulted in low protein, carbohydrate, and lipid content. Both AMF and AMF + NS favored foliar instead of root development. In contrast, SE and SE + NS favored protein content and root development and did not promote flowering. However, the combination of both PBs (AMF + SE) resulted in an additive effect, reflected in an increase in both foliar and root growth as well as protein and carbohydrate content. Moreover, a synergistic effect was also found, which was expressed in accelerated flowering and AMF colonization. We present evidence of benefits to plant performance (additive and synergistic) due to the interactive effects between microbial (AMF) and nonmicrobial (SEs) PBs and propose that the complementary modes of action of both PBs may be responsible for the observed positive effects due to the new and emerging properties of their components instead of exclusively being the result of known constituents. These results will be an important contribution to biostimulant research and to the development of a second generation of PBs in which combined and complementary mechanisms may be functionally designed.
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Affiliation(s)
- Mario Felipe González-González
- Laboratorio de Investigación en Biotecnología, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
| | - Héctor Ocampo-Alvarez
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía, Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
| | - Fernando Santacruz-Ruvalcaba
- Laboratorio de Biotecnología Vegetal, Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
| | - Carla Vanessa Sánchez-Hernández
- Laboratorio de Marcadores Moleculares, Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
| | - Kena Casarrubias-Castillo
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía, Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
| | - Amayaly Becerril-Espinosa
- CONACYT, Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
| | - José Juvencio Castañeda-Nava
- Unidad de Biotecnología Vegetal, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Zapopan, Mexico
| | - Rosalba Mireya Hernández-Herrera
- Laboratorio de Investigación en Biotecnología, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Mexico
- *Correspondence: Rosalba Mireya Hernández-Herrera, ;
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Velasco-Ramírez AP, Torres-Morán MI, Molina-Moret S, Sánchez-González JDJ, Santacruz-Ruvalcaba F. Efficiency of RAPD, ISSR, AFLP and ISTR markers for the detection of polymorphisms and genetic relationships in camote de cerro (Dioscorea spp.). ELECTRON J BIOTECHN 2014. [DOI: 10.1016/j.ejbt.2014.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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de Lourdes Contreras-Pacheco M, Santacruz-Ruvalcaba F, García-Fajardo JA, de Jesús Sánchez G. J, Ruíz L. MA, Estarrón-Espinosa M, Castro-Castro A. Diosgenin quantification, characterisation and chemical composition in a tuber collection of Dioscoreaspp. in the state of Jalisco, Mexico. Int J Food Sci Technol 2013. [DOI: 10.1111/ijfs.12193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- María de Lourdes Contreras-Pacheco
- Centro Universitario de Ciencias Biológicas y Agropecuarias; Universidad de Guadalajara; Km 15.5, Carretera Guadalajara-Nogales; Las Agujas; Zapopan; Jalisco; C.P. 45110; México
| | - Fernando Santacruz-Ruvalcaba
- Centro Universitario de Ciencias Biológicas y Agropecuarias; Universidad de Guadalajara; Km 15.5, Carretera Guadalajara-Nogales; Las Agujas; Zapopan; Jalisco; C.P. 45110; México
| | - Jorge A. García-Fajardo
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco; A.C. Av. Normalistas No. 800; Colinas de la Normal; Guadalajara; Jalisco; C.P. 44270; México
| | - José de Jesús Sánchez G.
- Centro Universitario de Ciencias Biológicas y Agropecuarias; Universidad de Guadalajara; Km 15.5, Carretera Guadalajara-Nogales; Las Agujas; Zapopan; Jalisco; C.P. 45110; México
| | - Mario A. Ruíz L.
- Centro Universitario de Ciencias Biológicas y Agropecuarias; Universidad de Guadalajara; Km 15.5, Carretera Guadalajara-Nogales; Las Agujas; Zapopan; Jalisco; C.P. 45110; México
| | - Mirna Estarrón-Espinosa
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco; A.C. Av. Normalistas No. 800; Colinas de la Normal; Guadalajara; Jalisco; C.P. 44270; México
| | - Arturo Castro-Castro
- Centro Universitario de Ciencias Biológicas y Agropecuarias; Universidad de Guadalajara; Km 15.5, Carretera Guadalajara-Nogales; Las Agujas; Zapopan; Jalisco; C.P. 45110; México
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Portillo L, Olmedilla A, Santacruz-Ruvalcaba F. Cellular and molecular changes associated with somatic embryogenesis induction in Agave tequilana. Protoplasma 2012; 249:1101-1107. [PMID: 22270826 DOI: 10.1007/s00709-011-0354-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 11/16/2011] [Indexed: 05/31/2023]
Abstract
In spite of the importance of somatic embryogenesis for basic research in plant embryology as well as for crop improvement and plant propagation, it is still unclear which mechanisms and cell signals are involved in acquiring embryogenic competence by a somatic cell. The aim of this work was to study cellular and molecular changes involved in the induction stage in calli of Agave tequilana Weber cultivar azul in order to gain more information on the initial stages of somatic embryogenesis in this species. Cytochemical and immunocytochemical techniques were used to identify differences between embryogenic and non-embryogenic cells from several genotypes. Presence of granular structures was detected after somatic embryogenesis induction in embryogenic cells; composition of these structures as well as changes in protein and polysaccharide distribution was studied using Coomassie brilliant blue and Periodic Acid-Schiff stains. Distribution of arabinogalactan proteins (AGPs) and pectins was investigated in embryogenic and non-embryogenic cells by immunolabelling using anti-AGP monoclonal antibodies (JIM4, JIM8 and JIM13) as well as an anti-methyl-esterified pectin-antibody (JIM7), in order to evaluate major modifications in cell wall composition in the initial stages of somatic embryogenesis. Our observations pointed out that induction of somatic embryogenesis produced accumulation of proteins and polysaccharides in embryogenic cells. Presence of JIM8, JIM13 and JIM7 epitopes were detected exclusively in embryogenic cells, which supports the idea that specific changes in cell wall are involved in the acquisition of embryogenic competence of A. tequilana.
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Affiliation(s)
- L Portillo
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, A. P. 1-139, Zapopan, Jal. 45101, Mexico.
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Sánchez G JJ, De La Cruz L L, Vidal M VA, Ron P J, Taba S, Santacruz-Ruvalcaba F, Sood S, Holland JB, Ruíz C JA, Carvajal S, Aragón C F, Chávez T VH, Morales R MM, Barba-González R. Three new teosintes (Zea spp., Poaceae) from México. Am J Bot 2011; 98:1537-1548. [PMID: 21875968 DOI: 10.3732/ajb.1100193] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PREMISE OF THE STUDY Teosinte species are the closest relatives of maize and represent an important but increasingly rare genetic resource for maize improvement and the study of evolution by domestication. Three morphologically and ecologically distinct teosinte populations were recently discovered in México. The taxonomic status of these rare and endangered populations was investigated by detailed comparisons to previously characterized wild Zea species. • METHODS Three new teosinte populations were compared to known teosinte taxa on the basis of morphological, ecogeographic, cytological, and molecular characteristics. Phenetic and phylogenetic analyses were performed using morphological and molecular data, respectively. • KEY RESULTS The newly discovered populations are distinct from each other and from other Zea species to represent three new entities based on their unique combinations of morphological, ecological, ploidy, and DNA markers. A perennial diploid population from Nayarit is distinguished by early maturing plants, and having male inflorescences with few tassel branches and long spikelets. A perennial tetraploid population from Michoacán is characterized by tall and late maturing plants, and having male inflorescences with many branches. An annual diploid population from Oaxaca is characterized by having male inflorescences with fewer branches and longer spikelets than those found in the sister taxa Z. luxurians and Z. nicaraguensis, plants with high thermal requirements, and very long seed dormancy. • CONCLUSIONS Evidence from multiple independent sources suggests placement of the three new populations of teosinte as distinct entities within section Luxuriantes of the genus Zea. However, more extensive DNA marker or sequence data are required to resolve the taxonomy of this genus.
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Affiliation(s)
- J J Sánchez G
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara. Km. 15.5 Carretera Guadalajara-Nogales, C.P. 45110. Las Agujas, Zapopan, Jalisco, México.
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Cervantes-Martínez J, Flores-Hernández R, Rodríguez-Garay B, Santacruz-Ruvalcaba F. Detection of bacterial infection of agave plants by laser-induced fluorescence. Appl Opt 2002; 41:2541-2545. [PMID: 12009165 DOI: 10.1364/ao.41.002541] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Greenhouse-grown plants of Agave tequilana Weber var. azul were inoculated with Erwinia carotovora, the causal agent of stem soft rot. We investigated the laser-induced fluorescence (LIF) of agave plants to determine whether LIF can be used as a noninvasive sensing tool for pathological studies. The LIF technique was also investigated as a means of detecting the effect of the polyamine biosynthesis inhibitor beta-hydroxyethylhydrazine as a bactericide against the pathogenic bacterium Erwinia carotovora. A He-Ne laser at 632.8 nm was used as the excitation source, and in vivo fluorescence emission spectra were recorded in the 660-790-range. Fluorescence maxima were at 690 and 740 nm. The infected plants that were untreated with the bactericide showed a definite increase in fluorescence intensity at both maxima within the first three days after infection. Beginning on the fifth day, a steady decrease in fluorescence intensity was observed, with a greater effect at 740 than at 690 nm. After 30 days there was no fluorescence. The infected plants that had been treated with the bactericide showed no significant change in fluorescence compared with that of the uninfected plants. The ratio of fluorescence intensities was determined to be F 690 nm/F 740 nm for all treatments. These studies indicate that LIF measurements of agave plants may be used for the early detection of certain types of disease and for determining the effect of a bactericide on bacteria. The results also showed that fluorescence intensity ratios can be used as a reliable indicator of the progress of disease.
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