Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)

The size of the axial cell elements of wood, vessel elements and fibers, increases or decreases from pith to stem periphery in the species that have been studied with successive cambium such as members of the Menispermaceae. Iresine latifolia (Amaranthaceae) was selected for this study because it i...

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Main Authors: Silvia Zumaya-Mendoza, Teresa Terrazas
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 2016-11-01
Series:Revista Mexicana de Biodiversidad
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Online Access:https://revista.ib.unam.mx/index.php/bio/article/view/1551
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author Silvia Zumaya-Mendoza
Teresa Terrazas
author_facet Silvia Zumaya-Mendoza
Teresa Terrazas
author_sort Silvia Zumaya-Mendoza
collection DOAJ
description The size of the axial cell elements of wood, vessel elements and fibers, increases or decreases from pith to stem periphery in the species that have been studied with successive cambium such as members of the Menispermaceae. Iresine latifolia (Amaranthaceae) was selected for this study because it is a scandent shrub widely distributed in Mexico with successive cambia. The objectives were to quantify vessel element and fiber lengths in each of the vascular rings, to evaluate whether cellular size increases or decreases from pith to periphery, and to describe its wood. Macerations were performed for each of the secondary xylem rings present in 3 individual samples, and permanent slides were prepared using conventional procedures for wood. Observations showed that I. latifolia has 13–36 concentric rings, each ring showing an active cambium. Like other species of Amaranthaceae, there are nucleated fibers and multiseriate rays with a meristematic center. Variance analyses showed significant differences between vessel element and fiber lengths between only some of the vascular rings from pith to periphery. These results suggest that the parenchyma cells, from which the new cambium is derived, reach the size of the fusiform initial cells early in the differentiation process.
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publisher Universidad Nacional Autónoma de México
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series Revista Mexicana de Biodiversidad
spelling doaj-art-38cc0263780f4b22b23cda89a1ece5222025-08-20T01:49:22ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Biodiversidad1870-34532007-87062016-11-0187410.1016/j.rmb.2016.10.006Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)Silvia Zumaya-Mendoza0Teresa Terrazas1Instituto de Biología, UNAMInstituto de Biología, UNAM The size of the axial cell elements of wood, vessel elements and fibers, increases or decreases from pith to stem periphery in the species that have been studied with successive cambium such as members of the Menispermaceae. Iresine latifolia (Amaranthaceae) was selected for this study because it is a scandent shrub widely distributed in Mexico with successive cambia. The objectives were to quantify vessel element and fiber lengths in each of the vascular rings, to evaluate whether cellular size increases or decreases from pith to periphery, and to describe its wood. Macerations were performed for each of the secondary xylem rings present in 3 individual samples, and permanent slides were prepared using conventional procedures for wood. Observations showed that I. latifolia has 13–36 concentric rings, each ring showing an active cambium. Like other species of Amaranthaceae, there are nucleated fibers and multiseriate rays with a meristematic center. Variance analyses showed significant differences between vessel element and fiber lengths between only some of the vascular rings from pith to periphery. These results suggest that the parenchyma cells, from which the new cambium is derived, reach the size of the fusiform initial cells early in the differentiation process. https://revista.ib.unam.mx/index.php/bio/article/view/1551CaryophyllalesShrubSecondary xylemCambial variantMeristematic centerNucleated libriform fibers
spellingShingle Silvia Zumaya-Mendoza
Teresa Terrazas
Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)
Revista Mexicana de Biodiversidad
Caryophyllales
Shrub
Secondary xylem
Cambial variant
Meristematic center
Nucleated libriform fibers
title Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)
title_full Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)
title_fullStr Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)
title_full_unstemmed Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)
title_short Vessel element and fiber length variation in successive cambia of Iresine latifolia (Amaranthaceae)
title_sort vessel element and fiber length variation in successive cambia of iresine latifolia amaranthaceae
topic Caryophyllales
Shrub
Secondary xylem
Cambial variant
Meristematic center
Nucleated libriform fibers
url https://revista.ib.unam.mx/index.php/bio/article/view/1551
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