Pollen morphology and its relation with meiotic irregularities in ten species of<i>Campuloclinium</i>(Eupatorieae, Asteraceae)

Farco, Gabriela Elizabeth; Dematteis, Massimiliano

doi:10.1080/00173134.2016.1249514

Cited by 2 publications

(2 citation statements)

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“…Much research is done on the family Asteraceae by (Akyalcin et al, 2011; Dematteis & Pire, 2008; Jafari & Ghanbarian, 2007; Skvarla et al, 1977; Urtubey & Tellerı́a, 1998) and studied different quantitative and qualitative characters of pollens. Farco and Dematteis (2017) studied 10 genus Campuloclinium in pollen morphology and worked on diverse mitotic abnormalities. Tellería (2017) studied the exine ornamentation of the Asteraceae pollen grains.…”

Section: Discussionmentioning

confidence: 99%

“…I G U R E 7 Scanning electron microscopy (SEM) micrographs of pollen grains of (a-c) Conyza candadensis (d-f) Conyza bengalensis (g-i) Carthamus lanatus (j-l) Calendula arvensis role in cytology studies of chromosomes. Much research is done on the family Asteraceae by(Akyalcin et al, 2011;Dematteis & Pire, 2008;Jafari & Ghanbarian, 2007;Skvarla et al, 1977;Urtubey & Tellerı ́a, 1998) and studied different quantitative and qualitative characters of pollens Farco and Dematteis (2017). studied 10 genus Campuloclinium in pollen morphology and worked on diverse mitotic abnormalities.…”

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Micro‐morphological diversity of pollen among Asteraceous taxa from Potohar Plateau‐Pakistan

Usma

Ahmad

Ramadan

et al. 2022

Microscopy Res & Technique

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Microscopic pollen characters from 19 species of family Asteraceae collected from different areas of the Potohar Plateau of Pakistan have been investigated using light and scanning electron microscopy. This study uses microscopic techniques to provide detailed information on pollen and its exine structure based on qualitative and quantitative characters. The present study has observed three types of pollen grains based on their apertures, that is, trizonocolporate, tetrazonocolporate, and tricolporate. Exine sculpturing is echinate in all studied taxa. Some species also exhibit Lacunae which differ in their shape and sizes. The size of the spines and the number of spines between the colpi play a vital role in differentiating the species of the same genus. Pollen fertility ranges from 94.3 to 74.19, showing that these species are well established in the study area. For the correct identification of species, a light and scanning electron microscopy was used that provides sufficient information for a taxonomist to distinguish species taxonomically. Research Highlights• Light and Scanning electron microscope is comparatively used to investigate the pollen characters of some species of the family Asteraceae.• A scanning electron microscopy is used to study the micro-morphological characters of pollen grains.• Qualitative and quantitative characters of pollen were studied.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Micro‐morphological diversity of pollen among Asteraceous taxa from Potohar Plateau‐Pakistan

Usma

Ahmad

Ramadan

et al. 2022

Microscopy Res & Technique

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Assessing niche conservatism and invasive potential of the "pompom weed" Campuloclinium macrocephalum (Asteraceae) using ordination and ecological niche modeling

Farco,

Moreno,

Marques

et al. 2024

Preprint

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The assessments of the status of biological invasions and the implementation of mitigation strategies to reduce their detrimental effects on biodiversity represent current challenges for invasion ecology and management. The analysis of niche dynamics provides an effective tool for predicting the invasive potential of alien species, their capacity to thrive and expand and, consequently, for anticipating where they may have detrimental effects. Campuloclinium macrocephalum (Asteraceae) is a perennial herb native to Mexico, Central America, and South America. In the 1960s, this species was introduced into South Africa, where it was initially established in disturbed sites such as roadsides. Subsequently, it invaded natural grasslands, open savannahs and wetlands, displacing native species. In this study, we evaluate the consistency between the native and invaded niche of C. macrocephalum, considering climatic and edaphic variables, and using two approaches: ordination techniques and ecological niche modeling, including reciprocal niche modeling. The results of the niche equivalency and similarity tests, in conjunction with the high niche stability observed in the invaded range, indicate that C. macrocephalum exhibits niche conservatism for. The modeling and the high values of niche unfilling revealed a significant potential for further expansion in the invaded range, towards new areas in the south and southwestern region of South Africa, as well as to the east and west center of the African continent. Consequently, it is crucial to focus attention on these areas to anticipate possible future invasions. These findings provide support for the use of ecological niche models to predict the risk of invasion and the responses to climate change of C. macrocephalum..

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Pollen morphology and its relation with meiotic irregularities in ten species ofCampuloclinium(Eupatorieae, Asteraceae)

Cited by 2 publications

References 43 publications

Micro‐morphological diversity of pollen among Asteraceous taxa from Potohar Plateau‐Pakistan

Micro‐morphological diversity of pollen among Asteraceous taxa from Potohar Plateau‐Pakistan

Assessing niche conservatism and invasive potential of the "pompom weed" Campuloclinium macrocephalum (Asteraceae) using ordination and ecological niche modeling

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