Fine structure of Quercus pollen from the Holocene sediments of the Sea of Japan

Tekleva, Maria V.; Naryshkina, N. N.; Евстигнеева, Т. А.

doi:10.1007/s00606-014-1014-z

Cited by 13 publications

(9 citation statements)

References 29 publications

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“…The number of perforations differs, depending on authors; some report their total absence or only a few and others mention many with differing diameters and distributions on pollen grains [17, 36, 43, 47, 48, 91]. Results of this study corroborate the above observations; perforations were small, scarce or numerous, sometimes they could not be seen at all.…”

Section: Discussionsupporting

confidence: 82%

Comparative Pollen Morphological Analysis and Its Systematic Implications on Three European Oak (Quercus L., Fagaceae) Species and Their Spontaneous Hybrids

et al. 2016

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Pollen morphology of three parental Quercus species (Q. robur L., Q. petraea (Matt) Liebl, Q. pubescens Willd.) and two spontaneous hybrids of these species (Q. ×calvescens Vuk. = Q. petraea × Q. pubescens and Q. ×rosacea Bechst. = Q. robur × Q. petraea) was investigated in this study. The pollen originated from 18 natural oak sites and 67 individuals (oak trees). Each individual was represented by 30 pollen grains. In total, 2010 pollen grains were measured. They were analysed for nine quantitative and four qualitative features. Pollen size and shape were important features to diagnosing Quercus parental species and hybrids. On the basis of exine ornamentation, it was possible to identify only Q. pubescens, while the remaining species and hybrids did not differ significantly with respect to this feature. The determination of the diagnostic value of endoaperture features requires further palynological studies. On the basis of pollen size and shape Q. robur × Q. petraea was clearly separated. Grouping of 67 oak trees on the basis of pollen grain features has shown that individuals from different as well as same taxa occurred in the same groups. Likewise, with respect to natural sites, oak trees originating from the same places as well as from geographically distant ones, grouped together. Pollen morphological features allow to distinguish a part of the studied Quercus taxa. Therefore, it can be used as an auxiliary feature in the taxonomy.

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Section: Discussionsupporting

confidence: 82%

Comparative Pollen Morphological Analysis and Its Systematic Implications on Three European Oak (Quercus L., Fagaceae) Species and Their Spontaneous Hybrids

et al. 2016

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“…In western Eurasia, Group Ilex becomes most diverse in the Miocene of the eastern Mediterranean, where macrofossil remains with affinity to either the western Eurasian Q. ilex L. as well as several East Asian species of Group Ilex are abundant and collectively addressed as Q. drymeja Unger and Q. mediterranea Unger (electronic supplement to Velitzelos et al 2014). Pollen of Group Ilex has also been documented for the Miocene of eastern China (Liu et al 2007), the Pleistocene and Holocene of Japan (Nakagawa et al 1996;Tekleva et al 2014) and from the Miocene onwards in Central Europe (Ferguson et al 1998;Van der Burgh & Zetter 1998;Hofmann et al 2002) Ecological implications. -Traditionally, members of this group have been considered to indicate seasonal, subtropical conditions with pronounced phases of draught ('subxerophytic'; e.g.…”

mentioning

confidence: 99%

Combined LM and SEM study of the middle Miocene (Sarmatian) palynoflora from the Lavanttal Basin, Austria: part IV. Magnoliophyta 2 – Fagales to Rosales

Grímsson

Bouchal

Xafis

et al. 2015

Grana

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“…With the accumulation of works on the exine morphology of modern species SEM has proved to be a useful tool in recognizing oak pollen below the generic level (see a detailed analysis in Liu et al 2007, and a review of later works in Tekleva et al 2014). Molecular studies recognize six infrageneric groups within the genus Quercus and they are consistent with data of pollen morphology (Denk & Grimm 2009, Hubert et al 2014.…”

Section: Utility Of Different Methods Applied In Studying Dispersed Omentioning

confidence: 77%

“…The data on the exine ultrastructure (TEM) can differentiate between different oak species better when given a larger pool of TEM data on different oak species. So far, few TEM studies have been made on modern and fossil oak pollen (see review in Tekleva et al 2014).…”

Section: Utility Of Different Methods Applied In Studying Dispersed Omentioning

confidence: 99%

“…During the last decade, studies using scanning electron microscopy (SEM) to examine oak pollen from different regions have been accumulating and the data helps create more detailed reconstructions (see review in Tekleva et al 2014). TEM data on the exine ultrastructure of modern oaks has shown that there are differences between oak species in the sporoderm as well (Denk & Tekleva 2014).…”

Section: Introductionmentioning

confidence: 99%

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A methodical and taxonomic study of dispersed oak pollen (Fagaceae) from the Holocene of Rolla, Missouri, USA

Tekleva

Haselwander

2016

Phytotaxa

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Oak pollen has great potential to be used in reconstructing paleovegetation and paleoclimate. Pollen grains from Holocene sediments of Rolla, Missouri, USA were studied. The goal of this study was to evaluate the morphology of dispersed oak pollen using light and electron microscopy. Three types of oak pollen were recognized: Group 1, Group 2, and Group 3. They occurred in the sample in the following approximate percentage: 52, 32 and 16% respectively. Pollen of Group 1 corresponds to that of white oaks, pollen of Group 2 to that of red oaks. Pollen of Group 3 differs from oak pollen known for the studied region. While electron microscopy shows a good prospect for a detailed interpretation of dispersed oak pollen, many factors should be taken into account when assessing past vegetation: the paleo-forest density, location of sampling, apparent wind direction during pollination, and the “resolving ability” of pollen morphology for different oak species. The intensity of flowering and direction of the pollen transport can significantly influence the quantity of pollen of a particular species in the spectrum. The possibility of medium or long-distance transport of a small quantity of oak pollen from other regions should also be considered in the interpretations of fossil spectra.

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Fine structure of Quercus pollen from the Holocene sediments of the Sea of Japan

Cited by 13 publications

References 29 publications

Comparative Pollen Morphological Analysis and Its Systematic Implications on Three European Oak (Quercus L., Fagaceae) Species and Their Spontaneous Hybrids

Comparative Pollen Morphological Analysis and Its Systematic Implications on Three European Oak (Quercus L., Fagaceae) Species and Their Spontaneous Hybrids

Combined LM and SEM study of the middle Miocene (Sarmatian) palynoflora from the Lavanttal Basin, Austria: part IV. Magnoliophyta 2 – Fagales to Rosales

A methodical and taxonomic study of dispersed oak pollen (Fagaceae) from the Holocene of Rolla, Missouri, USA

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