81 research outputs found
FIG. 5 in Oospore features among morphologically similar and closely related charophyte species: consistency and variability
FIG. 5. — The relationship between oospore parameters of Chara "connivens" P.Salzmann ex A.Braun and Chara globularis Thuil., and nominal variable referring to these two species: A, considering all sampling localities; B, referring to these two species considering Dulin pond locality only. Redundancy analysis (RDA). Abbreviations: see Material and methods.Published as part of Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar & Trbojević, Ivana, 2022, Oospore features among morphologically similar and closely related charophyte species: consistency and variability, pp. 189-200 in Cryptogamie, Algologie 20 (12) on page 196, DOI: 10.5252/cryptogamie-algologie2022v43a12, http://zenodo.org/record/781945
Oospore features among morphologically similar and closely related charophyte species: consistency and variability
Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar, Trbojević, Ivana (2022): Oospore features among morphologically similar and closely related charophyte species: consistency and variability. Cryptogamie, Algologie 20 (12): 189-200, DOI: 10.5252/cryptogamie-algologie2022v43a12, URL: http://dx.doi.org/10.5252/cryptogamie-algologie2022v43a1
Chara baueri C.C.Gmel
<i> <i>CHARA</i> BAUERI</i> <p> Oospores of <i>Chara baueri</i> measured in this study were ellipsoidal in shape, elongated (prolate) to strongly elongated (perprolate) and black – from RAL 9011 (graphite black) to RAL 9005 (jet black) (Fig. 3C). The membrane was brownish and finely granulated. In total, 127 oospores were measured and included in the analysis, all of them from the SNR Gornje Podunavlje (GPL1 and GPL2). A detailed description of the oospores of this species is available in Trbojević <i>et al</i>. (2020b).</p>Published as part of <i>Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar & Trbojević, Ivana, 2022, Oospore features among morphologically similar and closely related charophyte species: consistency and variability, pp. 189-200 in Cryptogamie, Algologie 20 (12)</i> on page 194, DOI: 10.5252/cryptogamie-algologie2022v43a12, <a href="http://zenodo.org/record/7819451">http://zenodo.org/record/7819451</a>
Chara , Casanova 1997
<i>CHARA</i> “ <i>CONNIVENS</i> ” <p> Oospores of <i>Chara</i> “ <i>connivens</i> ” in this study were on average elongated (prolate) and ellipsoidal in shape. Their color was dark brown to black – from approximately RAL 8019 (grey brown), through RAL 8022 (black brown) to graphite black (RAL 9011) (Fig. 3B). The membrane was opaque, light brown in color, and completely smooth. A total number of 62 oospores were included in the analysis, all of them from the vicinity of Bela Crkva (DP).</p>Published as part of <i>Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar & Trbojević, Ivana, 2022, Oospore features among morphologically similar and closely related charophyte species: consistency and variability, pp. 189-200 in Cryptogamie, Algologie 20 (12)</i> on page 193, DOI: 10.5252/cryptogamie-algologie2022v43a12, <a href="http://zenodo.org/record/7819451">http://zenodo.org/record/7819451</a>
Chara braunii C.C.Gmel
<i> <i>CHARA</i> BRAUNII</i> <p> Oospores of the <i>Chara braunii</i> analyzed in this study were ellipsoidal in shape and elongated (prolate). Their color was mostly dark brown, to black – from RAL 8016 (mahogany brown) to RAL 8022 (black-brown), rarely RAL 9011 (graphite black) (Fig. 3D). The membrane was light brown and granular. A total number of 48 oospores was measured and included in the analysis, 28 from the vicinity of Bela Crkva (pond LO1) and 20 from the SNR Gornje Podunavlje (GPL3).</p> <p> Oospore parameters of <i>Chara braunii</i> in relation to localities where this taxon was recorded are shown in Figure 6. Analysis described 22% variability in our data, and was significant (F = 1.3, P = 0.002). Variability between populations in remote localities was detectable, and all oospore parameters (except ANI and ISI) correlated with the locality in the vicinity of Bela Crkva (LO1), meaning that the oospores from this locality were distinctively longer and wider, with wider fossa. ISI showed positive correlation only with the locality in SNR Gornje Podunavlje (GPL3), while ANI did not show correlation to any of the sites.</p>Published as part of <i>Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar & Trbojević, Ivana, 2022, Oospore features among morphologically similar and closely related charophyte species: consistency and variability, pp. 189-200 in Cryptogamie, Algologie 20 (12)</i> on page 194, DOI: 10.5252/cryptogamie-algologie2022v43a12, <a href="http://zenodo.org/record/7819451">http://zenodo.org/record/7819451</a>
Chara globularis Thuil., C.
<i> <i>CHARA</i> GLOBULARIS</i> <p> Oospores of <i>Chara globularis</i> analyzed in this study were on average prolate (elongated) and ellipsoidal. The color varied from dark brown to black – from approximately RAL 8022 (black-brown), through RAL 9004 (signal black) to RAL 9005 (jet black) (Fig. 3A). The membrane of the oospore was brownish and slightly granular. A total number of 94 oospores was measured and included in the analysis – 54 from the vicinity of Bela Crkva (DP and SL) and 40 from the SNR Gornje Podunavlje (GPL1).</p> <p> Oospore parameters of <i>Chara globularis</i> in relation to localities where this species was found are shown in Figure 4. The analysis (F = 2.1, P = 0.002) described 32% variability in our data. The sampling localities are clearly separated, as can be seen on the ordination diagram. Oospore parameters of <i>Chara globularis</i> are clearly negatively correlated with GPL1 and oriented toward the left side of the ordination diagram showing a positive correlation with DP and SL localities. More precisely, higher values of the width of the fossa, (ISI and LPA) were related to SL, while higher values of LED, ANI, number of ridges and AND were connected to the DP locality. Multivariate analysis clearly highlighted intraspecific (i.e., interpopulation) variability of <i>C. globularis</i> oospore parameters, pointing out that all parameters had higher values in specimens found in vicinity of Bela Crkva (SL and DP) in comparison to the remote locality in SNR Gornje Podunavlje (GPL1). The variability of measured parameters was clearly visible even between populations from geographically close localities (SL and DP).</p>Published as part of <i>Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar & Trbojević, Ivana, 2022, Oospore features among morphologically similar and closely related charophyte species: consistency and variability, pp. 189-200 in Cryptogamie, Algologie 20 (12)</i> on page 193, DOI: 10.5252/cryptogamie-algologie2022v43a12, <a href="http://zenodo.org/record/7819451">http://zenodo.org/record/7819451</a>
Chara globularis Thuil., C.
COMPARATIVE ANALYSIS OF OOSPORES OF <i>CHARA GLOBULARIS</i> AND <i>CHARA</i> “ <i>CONNIVENS</i> ” <p> Comparing measured oospore parameters between samples of <i>C. globularis</i> from all localities and <i>C.</i> “ <i>connivens</i> ” (Fig. 5A), it is clear that almost all parameters correlated with <i>Chara globularis</i> – meaning that higher values of these oospore parameters are observed in this species. Only ANI showed positive correlation with <i>Chara</i> “ <i>connivens</i> ”. This analysis described 54% variability in our data, and was significant (F = 18.4, P = 0.002).</p> <p> The other analysis also compared measured oospore parameters between samples of <i>C. globularis</i> and <i>C.</i> “ <i>connivens</i> ”, but it was conducted with data for <i>Chara globularis</i> from the DP locality only (Fig. 5B), because in this locality <i>C. globularis</i> and <i>C.</i> “ <i>connivens</i> ” were found together and the morphological similarity between sterile specimens was extremely high. Results of this analysis were almost the same as in the one above, only the ISI index showed no clear correlation with either of the species. This analysis described 72% variability in the data and was also significant (F = 24.6, P = 0.002). Presented analyses (Fig. 5A, B) confirm that although intraspecific (interpopulation) variability of oospore parameters exist in <i>C.globularis</i>,when compared to <i>C.</i> “ <i>conniven</i> s”, the difference between species is clear and uniform.</p>Published as part of <i>Milovanović, Vanja, Popović, Slađana, Predojević, Dragana, Simić, Gordana Subakov, Ržaničanin, Ana, Sekulić, Jasmina Šinžar & Trbojević, Ivana, 2022, Oospore features among morphologically similar and closely related charophyte species: consistency and variability, pp. 189-200 in Cryptogamie, Algologie 20 (12)</i> on page 193, DOI: 10.5252/cryptogamie-algologie2022v43a12, <a href="http://zenodo.org/record/7819451">http://zenodo.org/record/7819451</a>
PHOTON GENERATION EFFICIENCY AND ENTANGLEMENT IN QUANTUM DOT SYSTEMS
The interest in quantum dots as sources of quantum light is based upon the potential for high photon generation efficiency that originates in their atom-like energy structure. Quantum dots can be excited resonantly and coherently, where generation of photon pairs calls for a specific excitation method of two-photon resonant excitation of the biexciton. Though this method is very efficient, it was very often showing sub-unity excitation efficiency that could be observed, for instance, in the maximum amplitude of the Rabi oscillations. Investigation of the dephasing processes in this excitation technique is of strategic interest for quantum communication technologies
Engineering the atom-photon interaction: controlling fundamental processes with photons, atoms and solids
This book provides a comprehensive view of the contemporary methods for quantum-light engineering. In particular, it addresses different technological branches and therefore allows the reader to quickly identify the best technology - application match. Non-classical light is a versatile tool, proven to be an intrinsic part of various quantum technologies. Its historical significance has made it the subject of many text books written both from theoretical and experimental point of view. This book takes another perspective by giving an insight to modern technologies used to generate and manipulate quantum light
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