Leaflet trichome micromorphology in the Dolentes-Brevipedes taxonomic complex (Mimosa L., Mimosoideae)

Grohar, Mariana Cecilia; Rosenfeldt, Sonia; Morales, Matías

doi:10.3906/bot-1412-40

Cited by 11 publications

(14 citation statements)

References 20 publications

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“…and A. odoratus Lam. ; in Iran with 1; in the former USSR with 7; in Azerbaijan with 2; in Armenia with 2; in Syria with 1; in China with 3 and in Japan with 2 (Gontscharov et al, 1946;Chamberlain and Matthews, 1970;Maassoumi, 1998) There are some reports of the family Fabaceae based on anatomy (Metcalfe and Chalk, 1957;Çobanoğlu, 1989;Haddad and Barnet, 1989;Evren and Çobanoğlu, 1993;Pirani et al, 2006;Mehrabian et al, 2007;Saghi et al, 2015), palynology (Tewari and Nair, 1979;Perveen and Qaiser, 1998;Simons and Chinnappa, 2004;Akan et al, 2005;Ekici et al, 2005;Pınar et al, 2009;Al-Ghamadi et al, 2013;Çeter et al, 2013;Bagheri et al, 2019) and micromorphology (Vural et al, 2008;Karaman et al, 2009;Mourad and Sharawy, 2010;Grohar et al, 2016;Metin et al, 2018). Mehrabian et al (2007) studied the petiole anatomy of 24 Astragalus species belonging to the section Incani DC.…”

Section: Introductionmentioning

confidence: 99%

Anatomy, Palynology and Micromorphology of the Genus Astragalus L. (Fabaceae) Section Uliginosi Gray in Turkey

Özbek

Ekící

Büyükkartal

et al. 2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The anatomical, palynological and leaflet and fruit micromorphological properties of two Astragalus L. species, namely A. falcatus Lam. and A. odoratus Lam. attributed to the section Uliginosi Gray (Fabaceae) from Turkey were considered via light (LM) and scanning electron microscopies (SEM) in order to determine their these characteristics and to assess the diagnostic value of these properties as taxonomic evidence. The leaflets type in terms of the anatomy, the type of stomata and trichomes, the shape and aperture of pollen grains and also the surface ornamentation of the fruits and trichomes are similar in these two species. Anatomical features such as the shape of the stem and petiole, the absence or presence of pith cavity in the stem and the number of vascular bundles in the petiole possess a systematic importance. Bifurcate trichomes are present on both surfaces of the leaflets. The ornamentation of trichomes is verrucate. The surface pattern of fruits is reticulate. The pollen grains are isopolar, radially symmetrical, trizonocolporate and prolate-spheroidal. Exine sculpturing is found to be a valuable characteristic for separating these species.

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Section: Introductionmentioning

confidence: 99%

Anatomy, Palynology and Micromorphology of the Genus Astragalus L. (Fabaceae) Section Uliginosi Gray in Turkey

Özbek

Ekící

Büyükkartal

et al. 2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…In Mimosa, trichomes have been used in the revision of taxonomic complexes (e.g., Grohar et al 2016) and in the description of new taxa, particularly in Mimosa sect. Mimosa (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Glandular trichomes are considered to be derived characteristics in the genus, being classified as sessile or stipitate (Santos-Silva et al 2013). Recently, Grohar et al (2016) have classified the stalked glandular trichomes in the Dolentes-Brevipedes complex as globose and clavate according to the head shape and number of cells of the stalk. In addition, glandular trichomes produce, store, and secrete different classes of secondary metabolites that may be associated with different ecological interactions; however, the chemical composition of these secretions is still unknown (Santos-Silva et al 2013).…”

Section: Introductionmentioning

confidence: 99%

A new glandular Mimosa species from Southern Brazil and insights about its glandular trichomes micromorphology

et al. 2019

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Mimosa baptistae is a new species presenting stalked glandular trichomes that give it a glutinous appearance, mainly with respect to the leaflets. Furthermore, it is an aculeate species, with multijugate leaves, white stamens, and fruits also covered by glandular trichomes. A herbaria survey and fieldwork only recorded this species as occurring on sandstone outcrops of the city Caçapava do Sul, Brazil. The species may be confused with other species of Mimosa sect. Batocaulon ser. Stipellares such as M. bifurca, M. sobralii and M. lepidota. However, features such as absence/presence of aculei, stamens color, habitat, and flower features are useful for distinguishing them from the new species. Here, we provide notes on morphology, geographic distribution, as well as anatomical detail of its glandular trichomes and content. Finally, we discussed the taxonomic significance of the micromorphology of glandular trichomes and their content in Mimosa ser. Stipellares as well as the potential applicability of such features to better understand the morphology of this series.

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“…pangloea, as was previously observed (Barneby 1991, pp. 582-583, 589-590;Morales 2011;Grohar et al 2016), but glands can also be found in M. aff. custodis (also tetraploid).…”

Section: Morphology and Cytogeneticsmentioning

confidence: 99%

Cytogeography and morphological characterisation of a taxonomic, polyploid complex of Mimosa (Leguminosae) from subtropical South America

Morales

Fradkin

Bessega

et al. 2018

Aust. Systematic Bot.

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Mimosa subseries Dolentes Barneby and Brevipedes Barneby are ecologically and morphologically high-diversified infrageneric taxa of this genus in southern South America. We performed a cytogenetical and morphological analysis of both subseries. Chromosome numbers from accessions throughout the area of distribution were studied. The chromosome numbers 2n=8x=104 for M. dolens subsp. callosa (Benth.) Barneby, M. dolens subsp. acerba varieties acerba (Benth.) Barneby, latifolia (Benth.) Barneby and rudis (Benth.) Barneby, M. dolens subsp. rigida var. rigescens (Benth.) Barneby, var. anisitsii (Lindm.) Barneby and var. foliolosa (Benth.) Barneby; and 2n=4x=52 for M. sceptrum Barneby, M. aff. custodis Barneby and M. dolens var. pangloea Barneby are presented for the first time. Their karyotypes were symmetric, with small chromosomes. There were several areas with taxa growing in sympatry, occasionally with intermediate forms. No diploids were found, which suggests the presence of either a declining polyploid complex or ancient polyploidy in the clade of southernmost representatives of M. series Mimosa, the most derived of the genus. Some vegetative, inflorescence and carpological characters seem to be associated with chromosome duplication. The distribution pattern of the cytotypes suggests events of chromosome duplication in centres of diversity and expansion of octoploids to the southernmost areas of distribution. Our findings support the importance of polyploidy in the morphological diversity, distribution and speciation of this complex.

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Leaflet trichome micromorphology in the Dolentes-Brevipedes taxonomic complex (Mimosa L., Mimosoideae)

Cited by 11 publications

References 20 publications

Anatomy, Palynology and Micromorphology of the Genus Astragalus L. (Fabaceae) Section Uliginosi Gray in Turkey

Anatomy, Palynology and Micromorphology of the Genus Astragalus L. (Fabaceae) Section Uliginosi Gray in Turkey

A new glandular Mimosa species from Southern Brazil and insights about its glandular trichomes micromorphology

Cytogeography and morphological characterisation of a taxonomic, polyploid complex of Mimosa (Leguminosae) from subtropical South America

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