Curvature Analysis in Seed Surface of SEM Images of <i>Silene</i> Species from Türkiye

Curvature Analysis in Seed Surface of SEM Images of <i>Silene</i> Species from Türkiye

Recently, based on light microscopy images, the tubercle structure on the seed surface of 100 <i>Silene</i> species was quantitatively described, including tubercle width, height, and curvature associated with general morphometric data. Curvature measures the rate of change of the tangen...

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Bibliographic Details
Main Authors: José Javier Martín-Gómez, José Luis Rodríguez-Lorenzo, Ángel Tocino, Mehmet Yaşar Dadandi, Kemal Yildiz, Emilio Cervantes
Format: Article
Language:English
Published: MDPI AG 2024-07-01
Series:Taxonomy
Subjects:
caryophylllaceae
curvature
development
morphological analysis
quantitative morphology
tubercles
Online Access:https://www.mdpi.com/2673-6500/4/3/24
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Summary:Recently, based on light microscopy images, the tubercle structure on the seed surface of 100 <i>Silene</i> species was quantitatively described, including tubercle width, height, and curvature associated with general morphometric data. Curvature measures the rate of change of the tangent vector in a curve and can be calculated by the following methods described for <i>Arabidopsis</i> roots. Here, we apply curvature measurements to the SEM images of 40 <i>Silene</i> species from Türkiye, demonstrating that a quantitative analysis of tubercles can be made based on SEM images with similar results to optical photographs. The association of morphometric tubercle data allows for classification into six groups, five of them corresponding to described shapes: rugose (two groups), echinate, mammillate, and papillose, and a sixth group of tubercles plane on top. The curvature values vary between 20 and 200 mm<sup>−1</sup> and differ among the morphological tubercle types described. The correlation of curvature values with other general measurements and morphological seed characteristics is investigated. Tubercle quantification not only is a useful tool for <i>Silene</i> taxonomy, but also provides the basis for the analysis of the genetic control and developmental effects on tubercle structure and shape in the seed surface.
ISSN:2673-6500

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