Pollen and Seed Morphology of Rhinacanthus Nees and Hypoestes Sol. ex R. Br. (Acanthaceae) of Yemen

Al-Hakimi, Anisa S.; Maideen, Haja; Latiff, A.

doi:10.17576/jsm-2015-4401-02

Cited by 13 publications

(6 citation statements)

References 12 publications

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“…Furness (1985) reported, that spiraperturate pollen occurs in a few families of angiosperms (both dicots and monocots) and appears to be polyphyletic. In dicots this aperture type was mentioned, for example, in Acanthaceae (Al-Hakimi et al, 2015), Berberidaceae (Kosenko, 1980;Nowicke and Skvarla, 1981), Bignoniaceae (Mitra, 1968;Gentry and Tomb, 1979), Lentibulariaceae (Beretta et al, 2014), Podostemaceae (Rutishauser, 1997;Osborn et al, 2000), Ranunculaceae (Blackmore et al, 1995), Scrophulariaceae (Argue, 1981) and others. In monocots, it can be found in Araceae (Ueno, 1980), Arecaceae (Nair and Sharma, 1963), Costaceae (Ueno, 1980;Stone et al, 1981;Furness, 1985), Eriocaulaceae (Ueno, 1980;Furness, 1985), Iridaceae (Furness, 1985), Liliaceae (Díaz Lifante et al, 1990), Xanthorrhoeaceae (Chanda and Ghosh, 1976), Zingiberaceae (Punt, 1968;Liang, 1988).…”

Section: Resultsmentioning

confidence: 99%

Some notes on the types of pollen aperture in the genus Crocus L. (Iridaceae)

Muradyan,

Hayrapetyan,

Asatryan

et al. 2023

Acta Palaeobot.

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Crocus L. (Iridaceae) is systematically a very problematic genus due to the lack of clear distinctive features, wide range of habitats and the heterogeneity of morphological features. This genus is also highly heterogeneous from a karyological point of view. Apart from the most common spiraperturate pollen grains in Crocus, the authors frequently mentioned a number of other aperture types for individual species (subspecies, variations, etc.), i.e. polyrugoidate, nonaperturate (inaperturate), polyaperturate, with more or less extensive furrows, with short furrows, etc. The purpose of this work is to perform a palyno-morphological analysis of pollen aperture types noted in the genus Crocus. The reason for the study is a significant disagreement among researchers when describing the types of pollen apertures in the genus Crocus. An analysis of the literature, as well as the results of our previous studies, showed that the genus Crocus is characterized by inaperturate (nonaperturate), polyaperturoidate, spiraperturate and net-like pollen apertures. The similar net-like apertures were observed for some representatives of the subgenus Scorpiris Sach of the genus Iris L., in particular, in Iris atropatana Grossh. In our opinion, this aperture type can serve as a link between the genus Crocus and the subgenus Scorpiris of the genus Iris. We suggest, that the spiraperturate pollen type mentioned most often for the representatives of the genus Crocus can be considered the basic type within the genus. On the other hand, formless aperture-like areas are genetically unstable transitory variations, which occurred arbitrarily due to mutations. Finally, “polyrugoidate” (or with net-like apertures) pollen type noted in the literature for C. chrysanthus subsp. punctatus F.Candan et N.Özhatay may be considered to be more advanced in the genus Crocus

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Section: Resultsmentioning

confidence: 99%

Some notes on the types of pollen aperture in the genus Crocus L. (Iridaceae)

Muradyan,

Hayrapetyan,

Asatryan

et al. 2023

Acta Palaeobot.

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“…Pollen morphological characters such as polar axis length, equatorial diameter, ratio P/E, exine thickness and the number of longitudinal ribs are important descriptors that can be used for distinguishing and identification of species in this study as reported by earlier workers in the genus Strobilanthes (Carine and Scotland 1998;Wang and Blackmore 2003) or other members of Acanthaceae such as genus Justicia L. ( Rueangsawang et al 2013), Barleria L. (Al-Hakimi et al 2018, Rhinacanthus Nees and Hypoestes Sol. (Al-Hakimi et al 2015).…”

Section: Pollen Morphological Characters Variationmentioning

confidence: 99%

“…The pollen morphological characters have been widely used in various plant groups of Angiosperms (Telleria et al 2013;Al-Hakimi et al 2015;Zhao et al 2016;Mander 2016;Kriebel et al 2017;Silva et al 2017;Xiong et al 2019;Raza et al 2020). They can be used to solve the taxonomic problems of plant groups, such as identification, taxa delimitation, classification and relationship assessment (Yao and Zhang 2016;Al-Hakimi et al 2017;Tripathi et al 2017;Ruiz-Domínguez et al 2019;Chen et al 2019;de Souza et al 2019;Ragho 2020).…”

Section: Introductionmentioning

confidence: 99%

Pollen morphological characters variation among species of Strobilanthes s.l. from Sumatra, Indonesia and its taxonomic implications

et al. 2022

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Abstract. Suratman, Suranto, Muzzazinah, Purnomo. 2022. Pollen morphological characters variation among species of Strobilanthes s.l. from Sumatra, Indonesia and its taxonomic implications. Biodiversitas 23: 4636-4648. The objective of this study was to evaluate pollen morphological characters variation and its taxonomic value among species of Strobilanthes s.l. from Sumatra. A total of 32 species from four genera previously recognized within the subtribe Strobilanthineae were used for pollen morphology observations using Light Microscope (LM) and Scanning Electron Microscope (SEM). A total of ten pollen morphological characters (both quantitative and qualitative) were observed in this study. In general, a great variation occurs in the majority of investigated pollen morphological characters. A similarity dendrogram among species of Strobilanthes s.l. based on pollen morphological character data revealed two major clusters. Cluster I consist of 25 species that differed from species in Cluster II in having pollen type I, pollen type II and pollen type III with a similarity coefficient of 0.61. Cluster II consists of seven species and has pollen type IV, pollen type V, pollen type VI and pollen type VII with a similarity coefficient of 0.46. An identification key to the species of Strobilanthes s.l. based on pollen morphology is also established for easy discrimination of the investigated taxa. This study revealed that pollen morphology was taxonomically useful character for identification and taxa delimitation of Strobilanthes s.l., especially at the species level. The results of this study also support earlier works through molecular studies, statistical analysis, gross morphology observations and leaf anatomy studies that all segregate genera of the subtribe Strobilanthinae should be merged under a single and well-defined genus as Strobilanthes s.l.

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“…Inflorescence, a corymb gathered in panicles with a central axis. The fruits are blue-black with 2-4 seeds (Latiff, 2012;Kozlovskiy et al, 2019). The total surface of assimilation increases and thermal radiation is reduced by up to 50%, implying that P. quinquefolia is a valuable taxon for wall gardening (Brice et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Invasion of Parthenocissus quinquefolia (L.) Planch in the forest-steppe of Ukraine

Blinkova¹,

Makarenko²,

Raichuk³

et al. 2022

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Research needs of adaptation mechanisms of invasive alien species arises in connection with the naturalization of species of the genus Parthenocissus Planch in forest ecosystems of Ukraine. The results showed that P. quinquefolia has a wide range of values of edaphic and climatic factors. The populations of P. quinquefolia differ according to the degree of anthropogenic transformation of the ecotope, the ecological conditions formed, and the allocation of coenotics. The biomorphological characteristics of the species variability are shown on the gradient of anthropogenic transformation. Diagnostic parameters of P. quinquefolia under the conditions of anthropogenic transformation are the number of crotches of the tendrils and the length of the tendrils. The number of flowers per plant is characterized by the highest level of variation and belongs to the V class of variability. The smallest plasticity is characterized by the diameter of the stem. Vitality analysis indicated that cenopopulations of P. quinquefolia belong to the equilibria or prosperous population types, regardless of the intensity of the anthropogenic factor.

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Pollen and Seed Morphology of Rhinacanthus Nees and Hypoestes Sol. ex R. Br. (Acanthaceae) of Yemen

Cited by 13 publications

References 12 publications

Some notes on the types of pollen aperture in the genus Crocus L. (Iridaceae)

Some notes on the types of pollen aperture in the genus Crocus L. (Iridaceae)

Pollen morphological characters variation among species of Strobilanthes s.l. from Sumatra, Indonesia and its taxonomic implications

Invasion of Parthenocissus quinquefolia (L.) Planch in the forest-steppe of Ukraine

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