Seed micromorphology and its systematic significance in tribe Alsineae (Caryophyllaceae)

Arabi, Zahra; Ghahremaninejad, Farrokh; Rabeler, Richard K.; Heubl, Günther; Zarré, Shahin

doi:10.1016/j.flora.2017.07.004

Cited by 28 publications

(28 citation statements)

References 25 publications

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“…Our study on seeds of Acanthophyllum showed that characters such as shape and color as well as features of testa cells, at least for the sections examined, provide a set of reliable characters to delimit traditional sections. However, variation of seed characters in other Caryophyllaceous genera such as Arenaria (Sadeghian et al 2014), Cerastium Linnaeus (1753: 437) (Arabi et al 2017), Gypsophila (Amini et al 2011), and Silene Linnaeus (1753: 416) (Dadandi & Yıldız 2015) do not provide informative data for delimiting traditional sections defined by classical taxonomy.…”

Section: Systematic Implication Of Seed Charactersmentioning

confidence: 99%

Systematic significance of seed morphology in Acanthophyllum (Caryophyllaceae: tribe Caryophylleae) in Iran

et al. 2019

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Acanthophyllum, with ca. 90 spiny cushion-forming species, is one of the largest genera of Caryophyllaceae. Although taxonomic utility of seed morphology has already been highlighted in different genera of Caryophyllaceae, the systematic value of seed characters in Acanthophyllum has not been adequately addressed. In order to evaluate the application of seed morphology in infrageneric classification of Acanthophyllum, we surveyed seed characters in the five Iranian sections of Acanthophyllum. Seed morphology of 32 accessions of Acanthophyllum representing 21 species and four sections were investigated using scanning electron microscopy. Seed morphological characters of two species from one additional section were included based on previous studies in the Caryophyllaceae. Seeds in the majority of examined species are oblong in outline. Five types of seed surface can be considered: reticulate, reticulate-papillate, colliculate, colliculate-papillate, and colliculate-columellate. Papillae type is a reliable character for separation of certain natural groups within Acanthophyllum. Seed features provided strong evidences for separating sections, especially the following ones: Acanthophyllum, Macrostegia and Pleiosperma, whose seeds showed a high degree of uniformity among the sampled species. Morphological characteristics of seeds were less useful for discriminating Acanthophyllum species. While seed characters are consistent within individual populations, they can vary among different populations of an individual species. Our results show that variation in seed morphological characters are in agreement with phylogenetic patterns within Acanthophyllum.

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Section: Systematic Implication Of Seed Charactersmentioning

confidence: 99%

Systematic significance of seed morphology in Acanthophyllum (Caryophyllaceae: tribe Caryophylleae) in Iran

et al. 2019

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“…Some scholars conducted various studies on Pseudostellaria with focus on its external morphology (Chen, Meng, Zhang, Han, & Liu, ; Lian, ), seed morphology (Arabi, Ghahremaninejad, Rabeler, Heubl, & Zarre, ; Xia, Liu, Xie, & Gen, ), molecular biology (Luo, Hu, Luo, Wang, & Song, ), biochemistry (R. W. Wang & Qi, ; Yang et al, ), and biogeography (Zeng et al, ).…”

Section: Introductionmentioning

confidence: 99%

Pollen morphology of Chinese Pseudostellaria (Caryophyllaceae) and its systematic significance

Cui

Ren

et al. 2020

Microscopy Res & Technique

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Using light and scanning electron microscopy, we studied the pollen morphology of six species (one of which are endemic) of Chinese Pseudostellaria. All species were studied for the first time. Results of this study indicated that pollen grains of Pseudostellaria are spheroidal or spheroidal-polyhedral in shape and small or medium in size and pantoporate. Each pollen grain has 12-16 round pores. These pores are apart from each other by 5.77-7.73 μm and each has 7-13 granules in the operculum region. These features have important taxonomic significance. In addition, their pollen grains have thin exine with microechinate-punctate-perforate surface ornamentation. Pollen features do not support the traditional infrageneric classification of Pseudostellaria into two sections, but support that Pseudostellaria is closely related to other species of the Odontostemma clade. K E Y W O R D S palynological, pollen morphology, Pseudostellaria, systematics

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“…Several taxonomic studies have shown that seed and trichome micromorphology can be useful for classification and delimitation of taxa at all taxonomic levels and in different plant families (Barthlott 1981, Krak and Mraz 2008, Salmaki et al 2009, Satil et al 2011, Salimi Moghadam et al 2015, Tavakkoli and Assadi 2016, Arabi et al 2017. A high diversity of trichomes on the gynocium and carpels has been shown to provide valuable information for identifying Glaucium species (Boissier 1867, Cullen 1966, Mory 1979.…”

Section: Introductionmentioning

confidence: 99%

Micro‐morphological characteristics of seed and ovary trichomes of Iranian Glaucium Mill. species (Papaveraceae) and their taxonomic importance

Tavakkoli

Assadi

2019

Nordic Journal of Botany

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Seeds and trichomes of 15 taxa of the genus Glaucium distributed in Iran were examined by light microscopy (LM) and scanning electron microscopy (SEM). The seeds are slightly shiny to rather shiny, however, strongly shiny seeds were also observed in some species (G. corniculatum and G. grandiflorum). The basic shape of the seeds is semicircular to reniform, but reniform and elongated reniform seeds were found in G. oxylobum and G. elegans, respectively. The sculpturing of the testa surface are verrucate–rugulate (most frequent type), verrucate–granulate, verrucate–perforate, verrucate–lineolate, rugulate–granulate, rugulate and ocellate. Elongated polygonal epidermal cells dominate in most taxa investigated, but there are polygonal and irregular polygonal cells in a few taxa. The investigated species have two types of trichomes on the ovary: tuberculate and non‐tuberculate. The non‐tuberculate trichomes are of two subtypes: pilose and squamiform. Based on the number of cells, the squamiform trichomes were further divided into two groups (uniseriate and multiseriate) differing in shape, size and cellular structure. The results show that the micro‐morphological characteristics of seed and ovary trichomes provide useful and significant information for separation of species and taxa within species and a diagnostic key to the taxa is provided.

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Seed micromorphology and its systematic significance in tribe Alsineae (Caryophyllaceae)

Cited by 28 publications

References 25 publications

<p><strong>Systematic significance of seed morphology in <em>Acanthophyllum</em> (Caryophyllaceae: tribe Caryophylleae) in Iran</strong></p>

<p><strong>Systematic significance of seed morphology in <em>Acanthophyllum</em> (Caryophyllaceae: tribe Caryophylleae) in Iran</strong></p>

Pollen morphology of Chinese Pseudostellaria (Caryophyllaceae) and its systematic significance

Micro‐morphological characteristics of seed and ovary trichomes of Iranian Glaucium Mill. species (Papaveraceae) and their taxonomic importance

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