Pollen morphology of<i>Erica</i>L. and related genera and its taxonomic significance

Sarwar, A.K.M. Golam; Takahashi, Hideki

doi:10.1080/00173134.2014.912346

Cited by 16 publications

(21 citation statements)

References 15 publications

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“…[29–34]). Only two publications have been devoted exclusively to the pollen morphology of the Erica genus [35, 36]. …”

Section: Introductionmentioning

confidence: 99%

“…On the basis of the palynological investigations conducted so far, it is known that the dispersal units of Erica pollen grains are tetrads (tetrahedral tetrads), and rarely monads [28; 36–39]. …”

Section: Introductionmentioning

confidence: 99%

“…The pollen grains are small or medium-sized, and oblate to prolate in shape. Exine ornamentation is changeable and can be psilate, gemmate-psilate, rugulate-psilate, verrucate-psilate, granulate, verrucate, microgranulate, microgammate or microstriate [28, 35, 36]. Other authors [37–39] also reported that fossulate exine ornamentation frequently occurred.…”

Section: Introductionmentioning

confidence: 99%

“…The diagnostic features of Erica pollen grains are: dispersal unit of pollen grains, pollen and tetrad size, pollen shape and exine ornamentation [6, 28, 35, 36, 38, 39]. …”

Section: Introductionmentioning

confidence: 99%

“…Monographic investigations based on such a large number of species have hitherto not been the object of palynological studies. Until now, the most extensive research comprised 23 Erica species [36], of which only five ( E . arborea , E .…”

Section: Introductionmentioning

confidence: 99%

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Systematic importance of morphological features of pollen grains of species from Erica (Ericaceae) genus

2018

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The Erica genus has as yet not been investigated satisfactorily in terms of palynology. Its complicated taxonomic system, large number of species, as well as its extensive but disrupted range of occurrence, all contribute to the fact that few researchers have undertaken investigations of this species. It was assumed that the research results would be representative thanks to a complex comparative analysis of all diagnostical, morphological pollen features performed on properly selected plant material, representing the most important distinguished intrageneric taxons at the present time (45 species from all five subgenera and 22 sections), both discriminated pollen dispersal units (tetrads and monads) as well as the main centres of genus occurrence and diversification (species from Europe, the Republic of South Africa (RSA) and Madagascar). The study revealed that the diagnostic features of the pollen grains studied were: pollen dispersal unit, exine ornamentation, P/E ratio, tetrad diameter (D) and length of polar axis (P). On the basis of these traits, 14 Erica species (six creating monads and eight—tetrads) were distinguished which, in the case of pollen features, constitutes a significant number. Other heaths created small groups, usually containing two or three species, but up to seven species. The present study, based on the highest number of Erica species (45) analysed so far, corroborated the view that an examination of palynological features may assist in clarifying classification systems for the large and taxonomically very difficult Erica genus, in particular, at the level of the subgenus and section, but also at species level. The results obtained indicate the need to continue palynological investigations on the Erica genus.

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“…[29–34]). Only two publications have been devoted exclusively to the pollen morphology of the Erica genus [35, 36]. …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The diagnostic features of Erica pollen grains are: dispersal unit of pollen grains, pollen and tetrad size, pollen shape and exine ornamentation [6, 28, 35, 36, 38, 39]. …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Systematic importance of morphological features of pollen grains of species from Erica (Ericaceae) genus

2018

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Effect of fuchsin fixation of pollen on DNA barcode recovery

Streicher,

Johnson,

Willows‐Munro

2023

Ecology and Evolution

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Pollen grains attached to insects are a valuable source of ecological information which can be used to reconstruct visitation networks. Morphological pollen identification relies on light microscopy with pollen usually stained and mounted in fuchsin jelly, which is also used to remove pollen from the bodies of insects. Pollen embedded in fuchsin jelly could potentially be used for DNA barcoding and metabarcoding (large‐scale taxonomic identification of complex mixed samples) and thus provide additional information for pollination networks. In this study, we determine whether fuchsin‐embedded pollen can be used for downstream molecular applications. We evaluate the quality of plant barcode (ITS) sequences amplified from DNA extracted from both fresh (untreated) pollen, and pollen which had been embedded in fuchsin jelly. We show that the addition of fuchsin to DNA extraction does not impact DNA barcode sequence quality during short‐term storage. DNA extractions from both untreated and fuchsin‐treated pollen produced reliable barcode sequences of high quality. Our findings suggest that pollen which has been collected, stained, and embedded in fuchsin jelly for preliminary microscopy work can be used within several days for downstream genetic analysis, though the quality of DNA from pollen stored in fuchsin jelly for extended periods is yet to be established.

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