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dc.contributor.advisorReyes Borja, Walter Oswaldo
dc.contributor.authorMorocho Ochog, Ricardo Alexander
dc.date.accessioned2021-05-21T19:47:52Z
dc.date.available2021-05-21T19:47:52Z
dc.date.issued2021
dc.identifier.urihttp://dspace.utb.edu.ec/handle/49000/9294
dc.descriptionAnther culture is a very useful biotechnological alternative to generate homozygous plants quickly. Consists of the collection of pollen to induce the formation of vegetative cells, this is due to the capacity of the immature microspores to form a new plant, in the moment incubated in vitro culture, the microspore can generate callus or pass directly to an embryo, depending on the species. Rice panicles are harvested 67 days after cultivation, in this period they contain microspores in uninucleated state, the tillers must be sterilized with ethanol, then passed into the laminar flow chamber, then placed in a glass jar with distilled water, the panicles are separated from the anthers, placed in culture medium and left in a dark room with a temperature of 24 ºC for 34 days, one of the best solutions for the culture medium is: 2mg/L of 2.4-D, 10 mg/L of AFA, 0.5 mg/L of Cinetine, 80g/L of maltose and with a pH of 5.8. For callus regeneration a solution of: 1 mg/L of ANA, 4 mg/L of cinetine, 30 g/L of sucrose, 3 g/L Gellan Gum with an ideal pH of 5.8 is used, then they pass to the acclimatization medium where the roots and undifferentiated leaves , finally they are kept in greenhouse. Tobacco growing does not go through the callus stage, flowers should be collected when the length of the sepals is equal to the petals, each flower is disinfected and transferred to the laboratory where pollen is collected with brushes to be deposited in Petri dishes where they are stored at a temperature of approximately 4ºC, in the multiplication phase one of the most effective regulators is: 0.5 - 1 mL.L-1 of 6-BAP or 1 - naphthalenacetic acid (ANA). Petri dishes containing pollen grains should be covered and incubated in darkness for 20 days at 27 ºC, then passed to light to be grown in tubes with basic growth medium. There are some mitotic inhibitors to perform chromosome duplication among them are colchicine, which has some negative health effects because it is a toxic alkaloid, and orizaline, both with good effectiveness.es_ES
dc.descriptionAnther culture is a very useful biotechnological alternative to generate homozygous plants quickly. Consists of the collection of pollen to induce the formation of vegetative cells, this is due to the capacity of the immature microspores to form a new plant, in the moment incubated in vitro culture, the microspore can generate callus or pass directly to an embryo, depending on the species. Rice panicles are harvested 67 days after cultivation, in this period they contain microspores in uninucleated state, the tillers must be sterilized with ethanol, then passed into the laminar flow chamber, then placed in a glass jar with distilled water, the panicles are separated from the anthers, placed in culture medium and left in a dark room with a temperature of 24 ºC for 34 days, one of the best solutions for the culture medium is: 2mg/L of 2.4-D, 10 mg/L of AFA, 0.5 mg/L of Cinetine, 80g/L of maltose and with a pH of 5.8. For callus regeneration a solution of: 1 mg/L of ANA, 4 mg/L of cinetine, 30 g/L of sucrose, 3 g/L Gellan Gum with an ideal pH of 5.8 is used, then they pass to the acclimatization medium where the roots and undifferentiated leaves , finally they are kept in greenhouse. Tobacco growing does not go through the callus stage, flowers should be collected when the length of the sepals is equal to the petals, each flower is disinfected and transferred to the laboratory where pollen is collected with brushes to be deposited in Petri dishes where they are stored at a temperature of approximately 4ºC, in the multiplication phase one of the most effective regulators is: 0.5 - 1 mL.L-1 of 6-BAP or 1 - naphthalenacetic acid (ANA). Petri dishes containing pollen grains should be covered and incubated in darkness for 20 days at 27 ºC, then passed to light to be grown in tubes with basic growth medium. There are some mitotic inhibitors to perform chromosome duplication among them are colchicine, which has some negative health effects because it is a toxic alkaloid, and orizaline, both with good effectiveness.es_ES
dc.description.abstractEl cultivo de anteras es una alternativa biotecnológica muy útil para generar plantas homocigotas de forma rápida. Consiste en la recolección de polen para inducir a la formación de células vegetativas, esto se da por la totipotencia que poseen las microsporas inmaduras para formar una nueva planta. Al momento que se incuba la microspora en cultivo in vitro, puede generar callo o pasar directamente a un embrión, esto depende de la especie. Las panículas de arroz se recolectan a los 67 días del cultivo, en este periodo contienen microsporas en estado uninucleado, los macollos se deben esterilizar con etanol, luego pasan a la cámara de flujo laminar, posteriormente colocarlas en un frasco de vidrio con agua destilada, se separan las anteras de las panículas, se las coloca en medio de cultivo y se las deja en un cuarto oscuro con una temperatura de 24 ºC por unos 34 días. Una de las mejores soluciones para el medio de cultivo es: 2mg /L de 2.4-D, 10 mg/L de AFA, 0.5 mg/L de Cinetina, 80g/L de maltosa y con un pH de 5.8. Para regeneración de callos se usa una solución de: 1 mg/L de ANA, 4 mg/L de cinetina, 30 g/L de sacarosa, 3 g/L Gellan Gum con un pH ideal de 5.8, luego pasan al medio de aclimatación donde salen las raíces y hojas no diferenciadas, finalmente se las mantiene en invernadero. El cultivo de tabaco no pasa por la etapa de callo, se debe recolectar flores cuando la longitud de los sépalos sea igual a la de los pétalos, cada flor se desinfecta y se trasladan al laboratorio donde se colecta polen con pinceles para depositar en placas Petri que es dónde se almacenan a una temperatura aproximada de 4ºC, en la fase de multiplicación uno de los reguladores que da una mayor eficacia es: 0.5 – 1 mL.L-1 es el 6-BAP, de la mano con el ácido 1 – naftalenacético (ANA), las placas Petri que contienen los granos de polen se deben tapar e incubar a oscuridad por 20 días a 27 ºC, posteriormente se las pasa a la luz para cultivarse en tubos con medio de crecimiento básico. Existen algunos inhibidores mitóticos para realizar la duplicación cromosómica entre ellos está la colchicina, que tiene algunos efectos negativos para la salud por ser un alcaloide tóxico, y la orizalina, ambos con una buena efectividad.es_ES
dc.format.extent17 p.es_ES
dc.language.isoeses_ES
dc.publisherBABAHOYO: UTB, 2021es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Ecuador*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ec/*
dc.subjectCultivo de anterases_ES
dc.subjectHomocigotases_ES
dc.subjectUninucleadases_ES
dc.subjectInhibidores mitóticoses_ES
dc.titleCultivo de anteras alternativa biotecnológica útil para la obtención de plantas doble haploide en especies vegetaleses_ES
dc.typebachelorThesises_ES


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