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1. Comprehensive investigation of the content and the origin of matrine-type alkaloids in Chinese honeys

Author:
Zhiying Wang; Tiehong Zu; Xuezhe Huang; Xiaolin Jiang; Guangqun Jia; Jinzhong Xu; Zongyan Cui; Fengmei Zhu; Jinjie Zhang; Jun Li; Yanzhong Cao
Source:
Food chemistry 2023 v.402 pp. 134254
ISSN:
0308-8146
Subject:
pollen,   etc   ; Acacia; Sophora davidii; food chemistry; honey; melissopalynology; China;     Show all 7 Subjects
Abstract:
... A HPLC-MS/MS method for simultaneous determination of four matrine-type alkaloids (matrine, oxymatrine, sophocarpine and sophoridine) in honey was established and was applied to 567 Chinese honey samples. The overall detection rate was 61.0 % and all eight Sophora viciifolia Hance honey samples were detected with the average content of 1183.3 μg/kg. Among 383 Acacia honey samples, matrine-type alk ...
DOI:
10.1016/j.foodchem.2022.134254

2. Integrated transcriptome and metabolome analysis unveiled the mechanisms of xenia effect and the role of different pollens on aroma formation in ‘Yali’ pear (Pyrus bretschneideri Rehd)

Author:
Wanjun Liu; Ying Zhang; Li Wang; Bilal Ahmad; Xiaoxin Shi; Yan Ren; Chen Liang; Xiangkun Zhang; Yuxing Zhang; Guoqiang Du
Source:
Scientia horticulturae 2023 v.307 pp. 111503
ISSN:
0304-4238
Subject:
pollen,   etc   ; Pyrus bretschneideri; biosynthesis; cultivars; ethylene; ethylene signaling pathway; flavor; gene expression regulation; hybrids; metabolites; metabolome; metabolomics; nerolidol; odors; pears; phenotype; pollination; pollinators; transcriptome; trees;     Show all 20 Subjects
Abstract:
... The flavor of ‘Yali’ pear fruits has substantially declined recently as a result of poor pollination tree selection. Xenia effect is a powerful mechanism for regulating aroma production. To study the effect of different pollens on aroma quality and the molecular basis of xenia effect in ‘Yali’ pear fruits, ‘Hongnanguo’ and ‘Xuehuali’ were used as pollinizers, and the hybrid fruits were named YH an ...
DOI:
10.1016/j.scienta.2022.111503

3. Determination of mycotoxins by HPLC, LC-MS/MS and health risk assessment of the mycotoxins in bee products of Turkey

Author:
Eda Keskin; Ozan Emre Eyupoglu
Source:
Food chemistry 2023 v.400 pp. 134086
ISSN:
0308-8146
Subject:
bee pollen,   etc   ; HT-2 toxin; T-2 toxin; bees; deoxynivalenol; food chemistry; health effects assessments; high performance liquid chromatography; honey; ochratoxin A; propolis; risk; royal jelly; tandem mass spectrometry;     Show all 14 Subjects
Abstract:
... The aim of this study is to determine the levels of deoxynivalenol (DON), HT-2 toxin (HT2), T-2 toxin (T2), and ochratoxin A (OTA) in bee products (bee pollen, propolis, honey and royal jelly) available in Turkey. In addition, exposure and health risk assessments were performed to identify the potential health risk of these mycotoxins. The mycotoxins were analyzed by high-performance liquid chroma ...
DOI:
10.1016/j.foodchem.2022.134086

4. The role of phytohormones and their related miRNAs in sex differentiation of Xanthoceras sorbifolium Bunge

Author:
Yaqi Zheng; Xiaofei Luo; Xu Wang; Jiang Ma; Yage Jiang; Junguang Zhao; Yan Ao
Source:
Scientia horticulturae 2023 v.307 pp. 111498
ISSN:
0304-4238
Subject:
pollen,   etc   ; Xanthoceras sorbifolium; abscisic acid; females; flower buds; flowering; gibberellins; indole acetic acid; males; meiosis; microRNA; microsporocytes; oilseeds; ovules; pistil; plant growth; seed yield; sexual development; trees; zeatin; China;     Show all 21 Subjects
Abstract:
... Xanthoceras sorbifolium Bunge is an important woody oilseed tree in north China. However, its yield is severely restricted by a low ratio of female to male flowers, and little is known about the physiological and molecular mechanisms underlying the sex differentiation of flowers. Therefore, carrying out the research in its sex differentiation regulation mechanism is the basis of increasing seed yi ...
DOI:
10.1016/j.scienta.2022.111498

5. A Study on the Characterization of Citrus Pollen Grains

Author:
Nihal Acarsoy Bilgin; Adalet Mısırlı; Murat Güneri
Source:
Erwerbsobstbau 2022 v.64 no.3 pp. 485-489
ISSN:
0014-0309
Subject:
pollen; pollen morphology; pollen size,   etc   ; Citrus; Poncirus trifoliata; fruits;     Show all 6 Subjects
Abstract:
... Citrus is one of the most important economic fruit species worldwide. Pollen properties are one of the hereditary characteristics used in the identification of plants. In this study carried out in different Citrus genera and species, pollen size and morphology were investigated by scanning electron microscope (SEM). According to this, pollen shape is divided into two groups as oblate and suboblate ...
DOI:
10.1007/s10341-022-00655-0

6. Optimum Discrimination on the Subsection Taxonomy of Wild Tree Peony Species in China Using Pollen Characteristics

Author:
Yiting Wang; Jiangnan Wang; Zhenguo Yan; Lixin Niu; Xiaoxiao Zhang; Yanlong Zhang
Source:
Horticulturae 2022 v.8 no.8 pp. -
ISSN:
2311-7524
Subject:
pollen; pollen germination; pollen morphology,   etc   ; Paeonia suffruticosa; electron microscopy; plant taxonomy; pollen viability; China;     Show all 8 Subjects
Abstract:
... Pollen characteristics have some significance for plant taxonomy classification. We intend to explore a more concise index value for the subsection taxonomy with the pollen morphology and pollen viability determined from all nine wild tree peony species, including 18 populations native to China. We observed the pollen morphologic characters by scanning electron microscopy and measured the pollen v ...
DOI:
10.3390/horticulturae8080736

7. Effects of heterospecific pollen on stigma behavior in Campsis radicans: Causes and consequences

Author:
Ting‐Ting Zou; Chun‐Hui Wang; Sen‐Tao Lyu; Xiaolei Yu; Lu‐Xi Deng; Wei‐Qi Liu; Jie Dai; Xiao‐Fan Wang
Source:
American journal of botany 2022 v.109 no.6 pp. 1004-1015
ISSN:
0002-9122
Subject:
pollen; pollen loads; pollen size,   etc   ; Campsis radicans; conspecificity; evolution; genetic distance; pollen tubes; pollination; pollinators; stigma;     Show all 11 Subjects
Abstract:
... PREMISE: Pollinator sharing of co‐flowering plants may result in interspecific pollen receipt with a fitness cost. However, the underlying factors that determine the effects of heterospecific pollen (HP) are not fully understood. Moreover, the cost of stigma closure induced by HP may be more severe for plants with special touch‐sensitive stigmas than for plants with non‐touch‐sensitive stigmas. Ve ...
DOI:
10.1002/ajb2.1865

8. The pollen dispersal ability for cross-pollination in winter wheat (Triticum aestivum L.) is related to anther extrusion capability rather than to pollen output

Author:
Bożena Denisow; Marzena Masierowska; Krystyna Winiarczyk; Monika Rakoczy-Trojanowska
Source:
South African journal of botany 2022 v.148 pp. 283-292
ISSN:
0254-6299
Subject:
pollen; pollen flow; pollen germination,   etc   ; Triticum aestivum; cleistogamy; cross pollination; extrusion; hybrids; males; outcrossing; pollen productivity; pollen viability; raffinose; winter wheat; Poland;     Show all 15 Subjects
Abstract:
... Triticum aestivum is a self-pollinated species with a high proportion of cleistogamous flowers constituting a blockade for out-crossing. Therefore, male parent characteristics are the main goal in the production of hybrid wheat seeds. In a two-year study conducted in Lublin (Poland), the features of flowering biology that can be relevant for the cross-pollination ability of the pollen donor were i ...
DOI:
10.1016/j.sajb.2022.04.031

9. Macro- and micromorphological characterization of staminodes in the Plains Prickly Pear Opuntia polyacantha Haw. (Cactaceae)

Author:
Ryan S. Rice; Roy Vera-Vélez; Denver J. Falconer; Nicholas A. Belliveau; J. Hugo Cota-Sánchez
Source:
Revista brasileira de botânica 2022 v.45 no.2 pp. 665-678
ISSN:
1806-9959
Subject:
pollen; pollen viability,   etc   ; Opuntia polyacantha; flowers;     Show all 4 Subjects
Abstract:
... Staminodes are floral structures occurring in approximately one-third of the angiosperms. These organs often go unnoticed in nature because they may mimic other floral parts. Consequently, their macro- and micromorphological portrayal in the literature is limited. This study presents a detailed descriptive account of staminodes in the Cactaceae, specifically the Plains Prickly Pear, Opuntia polyac ...
DOI:
10.1007/s40415-022-00790-8

10. Pollination efficiency and pollen limitation in bistaminate vs tetrastaminate Lamiaceae

Author:
Somayeh Naghiloo; Sedigheh Nikzat‐Siahkolaee; Zahra Esmaillou; Regine Claßen‐Bockhoff
Source:
Plant species biology 2022 v.37 no.1 pp. 91-102
ISSN:
0913-557X
Subject:
pollen; pollen loads; pollen productivity,   etc   ; Salvia sclarea; Ziziphora clinopodioides; evolution; pollination; selfing;     Show all 8 Subjects
Abstract:
... The evolution of bilabiate flowers in Lamiaceae has several times led to a reduction in stamen number. It is generally assumed that stamen reduction goes along with decreasing pollen production. One should, therefore, expect that bistaminate flowers have either a more efficient pollen transfer mechanism or a higher selfíng rate than tetrastaminate species to adapt to the stamen reduction. We teste ...
DOI:
10.1111/1442-1984.12357

11. A Review of the Developmental Processes and Selective Pressures Shaping Aperture Pattern in Angiosperms

Author:
Beatrice Albert; Alexis Matamoro-Vidal; Charlotte Prieu; Sophie Nadot; Irène Till-Bottraud; Adrienne Ressayre; Pierre-Henri Gouyon
Source:
Plants 2022 v.11 no.3 pp. -
ISSN:
2223-7747
Subject:
pollen; pollen tubes,   etc   ; microsporogenesis; ontogeny; plant reproduction;     Show all 5 Subjects
Abstract:
... Pollen grains of flowering plants display a fascinating diversity of forms. The observed diversity is determined by the developmental mechanisms involved in the establishment of pollen morphological features. Pollen grains are generally surrounded by an extremely resistant wall displaying apertures that play a key role in reproduction, being the places at which pollen tube growth is initiated. Ape ...
DOI:
10.3390/plants11030357

12. Pollen analysis of representatives of the tribes Ampelopsideae, Cayratieae and Parthenocisseae and evolutionary history of Vitaceae genera

Author:
Cláudia Barbieri Ferreira Mendonça; Elysiane de Barros Marinho; Simone Cartaxo-Pinto; Betsy R. Jackes; Vania Gonçalves-Esteves
Source:
Palynology 2022 v.46 no.2 pp. 1-15
ISSN:
1558-9188
Subject:
pollen analysis; pollen morphology; tricolporate pollen,   etc   ; Vitaceae; acetolysis; multivariate analysis; palynology; phylogeny; vines;     Show all 9 Subjects
Abstract:
... The family Vitaceae has a wide distribution, occurring in temperate, subtropical, and tropical climates. Vine members of the family thrive in different types of vegetation. Currently, the family includes five recognized tribes: Ampelopsideae, Cisseae, Cayratieae, Parthenocisseae, and Viteae. This study describes the pollen morphology of representatives of Ampelopsideae, Cayratieae, and Parthenocis ...
DOI:
10.1080/01916122.2021.1998240

13. Studies on the pollen morphology of Fritillaria (Liliaceae) taxa from Greece

Author:
Sofia Samaropoulou; Pepy Bareka; Dimitris L. Bouranis; Georgia Kamari
Source:
Plant biosystems 2022 v.156 no.4 pp. 947-958
ISSN:
1724-5575
Subject:
monosulcate pollen; pollen morphology,   etc   ; Fritillaria; exine; Greece;     Show all 5 Subjects
Abstract:
... Pollen grains of 19 Fritillaria (Liliaceae) taxa and 2 hybrids from Greece were investigated by scanning electron microscopy. The majority of the taxa are studied for the first time and 13 of them are Greek endemic plants. All studied Fritillaria taxa had symmetrical, heteropolar and monosulcate grains, with prolate or perprolate shape. Eight types of exine sculpturing were observed: rugulate–reti ...
DOI:
10.1080/11263504.2021.1985000

14. An overview of the challenges when analysing pollen for monofloral honey classification

Author:
Isabel Escriche; Marisol Juan-Borrás; Mario Visquert; José Miguel Valiente
Source:
Food control 2023 v.143 pp. 109305
ISSN:
0956-7135
Subject:
pollen; pollen analysis,   etc   ; Citrus; flora; food safety; honey;     Show all 6 Subjects
Abstract:
... The complexity of the pollen analysis, even for accredited laboratories, and the absence of standardized guidelines for a routine method to determine the monoflorality of a honey is a challenge. To expose the reality of this situation, the aim of this work is to discuss how the information and the quantification of the honey pollen content results are presented, considering the reports provided by ...
DOI:
10.1016/j.foodcont.2022.109305

15. Pollen diversity of medicinal plants from pocharam wildlife sanctuary, Medak district, Telangana state, India

Author:
R. Nagendar; A. Vijaya Bhasker Reddy
Source:
BIOINFOLET 2022 v.19 no.2 pp. 104-109
ISSN:
0976-4755
Subject:
pollen; pollen morphology,   etc   ; conservation areas; palynology; wildlife; India;     Show all 6 Subjects
Abstract:
... Palynological studies were carried out on 15 medicinal plants from Pocharam Wildlife area. The pollen characters, such as size, shape, aperture and ornamentation types were studied. The pollen morphology showed considerable diversity, which may prove helpful in identification of the taxa. ...

16. Definition of a growth medium to evaluate pollen viability in Hemerocallis cultivars

Author:
Tatiane Eberling; Fabíola Villa; Luciana Alves Fogaça; Daniel Fernandes da Silva; Luciana Sabini da Silva; Giovana Ritter
Source:
South African journal of botany 2022 v.147 pp. 319-324
ISSN:
0254-6299
Subject:
pollen; pollen germination; pollen viability,   etc   ; Hemerocallis; agar; boric acid; calcium nitrate; cultivars; culture media; pH; sucrose;     Show all 11 Subjects
Abstract:
... Hemerocallis is a floriferous species, which presents numerous genotypes that are constantly crossed, generating new cultivars. The germination and viability of pollen are influenced both by factors that are intrinsic and extrinsic to the pollen. In view of the above, the purpose of this study was to establish a growth medium for the germination of pollen grains. Cultivar Morgana was used in the e ...
DOI:
10.1016/j.sajb.2022.01.031

17. The effect of diagenesis and acetolysis on the preservation of morphology and ultrastructural features of pollen

Author:
Michael S. Zavada; Paul C. Hackley
Source:
Review of palaeobotany and palynology 2022 v.302 pp. 104679
ISSN:
0034-6667
Subject:
pollen; pollen morphology; pollen walls,   etc   ; acetolysis; color; diagenesis; electron microscopy; fluorescence; paleobotany; palynology; reflectance; spores; ultrastructure; wavelengths;     Show all 14 Subjects
Abstract:
... Pollen morphology on its own and in conjunction with other characteristics has elucidated the origin and evolution of various plant groups. Previous studies of fossil pollen rarely discuss the effects of diagenesis and sample preparation on pollen characteristics, i.e., variability in staining, pollen morphology, and pollen wall ultrastructural characteristics. This paper examines the effect of ac ...
DOI:
10.1016/j.revpalbo.2022.104679

18. A new method based on surface‐sample pollen data for reconstructing palaeovegetation patterns

Author:
Esmeralda Cruz‐Silva; Sandy P. Harrison; Elena Marinova; I. Colin Prentice
Source:
Journal of biogeography 2022 v.49 no.7 pp. 1381-1396
ISSN:
0305-0270
Subject:
pollen; pollen sampling,   etc   ; biogeography; data collection; ecosystems; fossils; vegetation;     Show all 7 Subjects
Abstract:
... AIM: Biomisation has been the most widely used technique to reconstruct past regional vegetation patterns because it does not require an extensive modern pollen dataset. However, it has well‐known limitations including its dependence on expert judgement for the assignment of pollen taxa to plant functional types (PFTs) and PFTs to biomes. Here we present a new method that combines the strengths of ...
DOI:
10.1111/jbi.14448

19. Palynological study of Allium L. (Amaryllidaceae) in the flora of Egypt

Author:
Iman H. Nour; Rim S. Hamdy; Ahmed K. Osman; Mohamed O. Badry
Source:
Palynology 2022 v.46 no.3 pp. (1)
ISSN:
1558-9188
Subject:
monosulcate pollen; pollen morphology; pollen size,   etc   ; Allium; cluster analysis; exine; flora; multidimensional scaling; palynology; taxonomic keys; Egypt;     Show all 11 Subjects
Abstract:
... Allium (Amaryllidaceae) is diverse and taxonomically problematic, with controversial subdivisions and polymorphic species. In Egypt, the genus has not been investigated satisfactorily in terms of palynology. The present study aims to provide palynological information on the endemic and near-endemic species of Allium for the first time in Egypt and to characterise the pollen diversity of the invest ...
DOI:
10.1080/01916122.2022.2031329

20. Sucrose rather than GA transported by AtSWEET13 and AtSWEET14 supports pollen fitness at late anther development stages

Author:
Jiang Wang; Xueyi Xue; Houqing Zeng; Jiankun Li; Li‐Qing Chen
Source:
The new phytologist 2022 v.236 no.2 pp. 525-537
ISSN:
0028-646X
Subject:
pollen; pollen germination; pollen viability,   etc   ; Arabidopsis thaliana; genetic complementation; gibberellins; microscopy; mutants; seed yield; substrate specificity; sucrose;     Show all 11 Subjects
Abstract:
... Both sugar and the hormone gibberellin (GA) are essential for anther‐enclosed pollen development and thus for plant productivity in flowering plants. Arabidopsis (Arabidopsis thaliana) AtSWEET13 and AtSWEET14, which are expressed in anthers and associated with seed yield, transport both sucrose and GA. However, it is still unclear which substrate transported by them directly affects anther develop ...
DOI:
10.1111/nph.18368