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Madera y corteza de algunas Rubiaceae en México: similitud estructural

Authors: Dorismilda Martínez-Cabrera; Teresa Terrazas; Helga Ochoterena; Alejandro Torres-Montúfar;

Madera y corteza de algunas Rubiaceae en México: similitud estructural

Abstract

Se estudió la anatomía de corteza y madera de 42 especies de 8 tribus de Rubiaceae con la finalidad de evaluar si los caracteres anatómicos permiten la separación de las especies de los géneros presentes en México y si hay caracteres relacionados con el ambiente donde viven o su hábito. El fenograma mostró 2 grupos que corresponden a la madera tipo I y II sensu Koek-Noorman. No todas las especies de Bouvardia ni de Psychotria se agrupan en su respectivo género y Notopleura anomothyrsa es diferente del resto por tener fibrotraqueidas septadas y punteaduras intervasculares escalariformes. El grupo de Arachnothryx, Chione, Exostema, Hintonia y Randia con madera tipo I presenta ritidoma, bandas de esclereidas y3 tipos de cristales en el floema; son árboles o arbustos de selva baja caducifolia y bosque mesófilo. El grupo con madera tipo II tiene una peridermis, endodermis, grupos de fibras/esclereidas y rafidios en el floema; son arbustos de selva alta perennifolia, baja caducifolia, bosque mesófilo y de pino-encino. Los anillos de crecimiento en estas especies sugieren estar asociados con aspectos fenológicos y las condiciones del hábitat, pero no así el diámetro y densidad de los vasos que parecen tener una fuerte señal filogenética.

Keywords

Endodermis, QH301-705.5, Tipo II, Anatomía ecológica, Notopleura, Biología, Type I, Ecological anatomy, Tipo I, Type II, Similarity, Inclusiones minerales, Mineral inclusions, Biology (General), Similitud, Psychotria

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
Green
gold