Tallo
Transcript of Tallo
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El TalloM. Sc. Ing. Kevin J. Mejía Depto. Producción vegetal
CUROC
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El tallo๏ Origen!
• se origina a partir de la parte superior del embrión denominado epicotilo, es una yema vegetativa caulinar o vástago (tallo con hojas)
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Embrión del tallo
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Funciones• Conducción y transporte de nutrientes y
solitos
• Almacenamiento de solutos y nutrientes
• Producción y soporte de hojas
• Manufactura de alimentos
• Fotosíntesis*
• Respiración
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Partes del tallo• Nudos
• Entrenudos
• Ramas
• Yema terminal
• Yema lateral
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Tipos de tallos
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Tallo Herbáceos• Característicos de plantas anuales
(Magnoliopsidas)
• Flexibles* de color verde
• Protegidos por la epidermis
• Tejidos primarios
• Poco desarrollo
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Tallos leñoso• Plantas perennes (Liliopsidas)
• Rígido de coloración oscura (por las células del suber)
• Protegido por el corcho
• Mayor crecimiento en diamétro y longitud
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Ramificación
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Monopodial-Simpodial
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Estípite• Tallo que no emite ramas
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Tipos de tallos
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Adaptaciones del vástago (tallo)
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Rizomas• Tallo subterraneo que crece de forma horizontal
emitiendo raíces y brotes secundarios de sus nudos
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Zingiber officinale ("jenjibre").
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Tubérculos• Tallo subterráneo y engrosado donde se acumulan
nutrientes de reserva para la planta
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Bulbos• Organos subterraneos de almacenamiento de
nutrientes; está formado por cinco partes:
• Disco basal
• Escamas carnosas
• Tunica
• Vástago
• Yemas laterales
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Estolón• Brote lateral, normalmente delgado, que nace en la
base del tallo de algunas plantas herbáceas
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Cormos
• Es la base hinchada de un vástago de tallo, envuelto por hojas secas de escamas. Es una estructura sólida, con nudos y entrenudos marcados y evidentes.
• El grueso del cormo consiste en tejido de reserva formado por células de parénquima.
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Suculento• Tallos que se han engrosado para almacenar agua
en cantidades mayores*