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1. Development and expansion of the pollen wall in Barleria obtusa Nees (Acanthaceae)

Author:
House, A.; Balkwill, K.
Source:
South African journal of botany 2019 v.125 pp. 188-195
ISSN:
0254-6299
Subject:
anthers,   etc   ; Barleria; developmental stages; exine; gametogenesis; light microscopes; ontogeny; pollen;     Show all 8 Subjects
Abstract:
... Anthers containing pollen grains of Barleria obtusa at various stages of development were examined to investigate pollen wall ontogeny. Whole anthers containing pollen grains were viewed with a light microscope, firstly to identify stages of pollen grain development and secondly to assess the state of the tapetum. Developing pollen grains were sectioned with a Focused Ion Beam-Scanning Electron Mi ...
DOI:
10.1016/j.sajb.2019.07.038

2. Gladiolus virgineus, a new species from Zambia and notes on G. ferrugineus in South Africa (Iridaceae: Crocoideae)

Author:
Goldblatt, P.; Manning, J.C.; Wightman, N.; Bytebier, B.
Source:
South African journal of botany 2019 v.123 pp. 293-295
ISSN:
0254-6299
Subject:
anthers,   etc   ; Gladiolus; flowers; leaves; new species; summer; South Africa; Zambia;     Show all 8 Subjects
Abstract:
... A collection of Gladiolus made in northern Zambia in February 2018 is described as the new G. virgineus Goldblatt & J.C.Manning. It is evidently allied to G. atropurpureus Baker but with the stem bearing four well developed foliage leaves, and flowering in late summer (February). The white flowers are ±28 mm long, with a short style dividing opposite the base of the anthers. We also discuss a seri ...
DOI:
10.1016/j.sajb.2019.03.027

3. New Taxa of Meconopsis (Papaveraceae) from Wanba, Southwestern Sichuan, China

Author:
Yoshida, Toshio
Source:
Harvard papers in botany 2019 v.24 no.1 pp. 31-39
ISSN:
1043-4534
Subject:
anthers,   etc   ; Meconopsis; corolla; mountains; new taxa; photographs; China;     Show all 7 Subjects
Abstract:
... Two taxa of Meconopsis, growing on metalliferous mountains adjacent to Wanba () valley, Jiulong Xian (), southwestern Sichuan, China, are described as new and accompanied by photographs. The first taxon, M. wanbaensis, is distinguished from related species by such unique features as the prominently undulate petals and obconical style. The second taxon, M. pulchella var. melananthera, is distinguis ...
DOI:
10.3100/hpib.v24iss1.2019.n6

4. Morphological and molecular data show an enlarged tropical Australian radiation in Synostemon (Phyllanthaceae, Phyllantheae) previously concealed by heteromorphic species concepts

Author:
Telford, Ian R. H.; Pruesapan, Kanchana; van Welzen, Peter C.; Bruhl, Jeremy J.
Source:
Australian systematic botany 2019 v.32 no.2-3 pp. 146-176
ISSN:
1446-5701
Subject:
anthers,   etc   ; Sauropus; new combination; new species; plant taxonomy; synapomorphy;     Show all 6 Subjects
Abstract:
... Sauropus elachophyllus (F.Muell. ex Benth.) Airy Shaw and S. rigidulus (F.Muell. ex Müll.Arg.) Airy Shaw are revised under the reinstated genus Synostemon F.Muell. (Phyllanthaceae) using morphological and nrITS sequence data. Sauropus decrescentifolius J.T.Hunter & J.J.Bruhl and S. elachophyllus are shown to be conspecific as Synostemon elachophyllus (F.Muell. ex Benth.) I.Telford & Pruesapan and ...
DOI:
10.1071/SB18029

5. Heritabilities of lateral and vertical herkogamy in Lysimachia arvensis

Author:
Jiménez‐López, Francisco Javier; Arista, Montserrat; Talavera, María; Pannell, John R.; Ortiz, Pedro L.
Source:
Plant species biology 2019 v.34 no.1 pp. 31-37
ISSN:
0913-557X
Subject:
anthers,   etc   ; Lysimachia; flowers; heritability; herkogamy; phenotypic variation; pollination; stamens; stigma;     Show all 9 Subjects
Abstract:
... Herkogamy, spatial separation between stigma and anthers within a flower, is important in regulating plant‐mating systems. We studied phenotypic variation and heritability of herkogamy traits in Lysimachia arvensis (=Anagallis arvensis) that show both lateral and vertical herkogamy in the same flower, a rare strategy in flowering plants. Both lateral and vertical herkogamy showed continuous variat ...
DOI:
10.1111/1442-1984.12229

6. Flowers with poricidal anthers and their complex interaction networks—Disentangling legitimate pollinators and illegitimate visitors

Author:
Mesquita‐Neto, José N.; Blüthgen, Nico; Schlindwein, Clemens
Source:
Functional ecology 2018 v.32 no.10 pp. 2321-2332
ISSN:
0269-8463
Subject:
anthers,   etc   ; bees; flowers; pollen; pollinators; stigma;     Show all 6 Subjects
Abstract:
... In flowers with poricidal anthers, pollen is not freely accessible and legitimate access is restricted to bees capable of vibrating the anthers. Despite the protection of pollen provided by poricidal anthers, numerous illegitimate, non‐buzz‐pollinating flower visitors rob pollen. We aimed to quantify the influence of functional groups of floral visitors and illegitimate interactions on the network ...
DOI:
10.1111/1365-2435.13204

7. Revisión crítica del género Rogiera Planch. (Rubiaceae, Guettardeae) y la validez del género Rovaeanthus Borhidi (Rubiaceae, Rondeletieae)

Author:
Borhidi, A. L.
Source:
Acta botanica Hungarica 2018 v.60 no.1-2 pp. 13-29
ISSN:
1588-2578
Subject:
anthers,   etc   ; Rubiaceae; flora; flowers; monophyly; polyphyly; seeds;     Show all 7 Subjects
Abstract:
... The last synthetic treatment of the Rogiera genus was published by D. Lorence in the Flora Mesoamericana (Vol. 4, part 2) based on a polyphyletic concept including two genera of different tribes and leaving the results of the molecular studies out of consideration or misinterpreting them (Lorence 2012). Rovaeanthus has been distinguished at first by Johan Rova upon comparative molecular studies (R ...
DOI:
10.1556/034.60.2018.1-2.2

8. Somatic embryogenesis through in vitro anther culture of Citrus sinensis L. Osbeck 'Moro'

Author:
lacuzzi, N.; Aleza, P.; Garcia-Lor, A.; Germana, M. A.
Source:
Acta horticulturae 2019 no.1230 pp. 25-34
ISSN:
0567-7572
Subject:
anther culture; anthers,   etc   ; Citrus sinensis; buds; cold treatment; crops; cultivars; culture media; heat treatment; heterozygosity; homozygosity; pollen; somatic cells; somatic embryogenesis; temperature; tetraploidy;     Show all 16 Subjects
Abstract:
... In many crops, anther culture is the most used method to induce gametic embryogenesis, aimed to regenerate homozygous plants. However, also somatic embryogenesis can be obtained by this method, when somatic tissue is involved in the regeneration process. Many factors can affect this procedure, such as genotype, temperature pre-treatment applied to floral buds, pollen developmental stage, donor pla ...
DOI:
10.17660/ActaHortic.2019.1230.4

9. Floral organogenesis and vasculature in Mayacaceae, an enigmatic family of Poales

Author:
Oriani, Aline; Scatena, Vera L.
Source:
Plant systematics and evolution 2019 v.305 no.7 pp. 549-562
ISSN:
0378-2697
Subject:
anthers,   etc   ; Commelinaceae; Mayaca fluviatilis; calyx; corolla; flowering; phylogeny; plant ovary; self-pollination; stamens; stigma; trichomes;     Show all 12 Subjects
Abstract:
... Mayacaceae are a small and monogeneric aquatic family including 4–6 species and with an unstable phylogenetic position within Poales. Therefore, the floral development and vasculature were studied in Mayaca fluviatilis and Mayaca sellowiana to better understand interfamilial relationships. In both species, the floral vascular system is organized in six central complexes from which the traces of al ...
DOI:
10.1007/s00606-019-01592-4

10. Low temperature‐induced aberrations in male and female reproductive organ development cause flower abortion in chickpea

Author:
Kiran, Asha; Kumar, Sanjeev; Nayyar, Harsh; Sharma, Kamal Dev
Source:
Plant, cell and environment 2019 v.42 no.7 pp. 2075-2089
ISSN:
0140-7791
Subject:
anthers,   etc   ; Cicer arietinum; abortion (plants); chickpeas; dehiscence; drought; females; flowering; flowers; males; microsporogenesis; pollen; temperature;     Show all 13 Subjects
Abstract:
... Chickpea (Cicer arietinum L.) is susceptible to low temperature (LT) at reproductive stage. LT causes flower abortion and delays pod set in chickpea until terminal drought becomes an issue, thereby decreasing yield potential. In chickpea, flower and anther/pollen development as well as LT‐induced abnormalities on anther and pollen development are described inadequately. In the present manuscript, ...
DOI:
10.1111/pce.13536

11. Microlicia longirostrata, a New Species of Melastomataceae from Goiás in Central Brazil

Author:
Romero, Rosana; Fontelas, Jean Corrêa; Versiane, Ana Flávia Alves; De-Paula, Orlando Cavalari
Source:
Systematic botany 2019 v.44 no.2 pp. 349-354
ISSN:
0363-6445
Subject:
anthers,   etc   ; Melastomataceae; beak; collenchyma; leaves; new species; plant taxonomy; scientific illustration; stamens; taxon descriptions; trichomes; Brazil;     Show all 12 Subjects
Abstract:
... Microlicia longirostrata (Melastomataceae), a new species from Goiás, is described and illustrated, and a discussion on leaf anatomy is also provided. The new species resembles M. consimilis and M. psammophila, but differs from them in having an indumentum with both short-stalked, spherical, glandular trichomes and long-stalked, glandular emergences, polysporangiate anthers and antesepalous stamen ...
DOI:
10.1600/036364419X15562052252180

12. Calcium distribution in fertile and sterile anthers of thermosensitive male-sterile wheat

Author:
Li, Dong Xiao; Hu, Haiyan; Li, Gan; Ru, Zhen Gang; Tian, Hui Qiao
Source:
Grana 2019 v.58 no.3 pp. 191-199
ISSN:
1651-2049
Subject:
anthers,   etc   ; abortion (plants); calcium; genotype; male sterility; meiosis; metabolism; microspores; pollen; thermosensitivity; vacuoles; wheat;     Show all 12 Subjects
Abstract:
... Calcium distribution in fertile and sterile anthers of a thermosensitive male-sterile wheat genotype was investigated using an antimonate precipitation method. During fertile anther development, before meiosis of the microspore mother cells, calcium precipitates were apparent in tapetal cells of the anther wall. After meiosis, precipitates were detected in the early microspores and accumulated in ...
DOI:
10.1080/00173134.2018.1559352

13. Best of both worlds: Narrow flower entrance of an African aloe facilitates pollen transfer on sunbird bills

Author:
Hargreaves, A.L.; Langston, G.T.; Johnson, S.D.
Source:
South African journal of botany 2019
ISSN:
0254-6299
Subject:
anthers,   etc   ; Aloe; Nectarinia famosa; aviaries; bees; corolla; evolution; field experimentation; nectar; outcrossing; pollen; pollination; pollinators;     Show all 13 Subjects
Abstract:
... Trade-offs are considered a major factor in the evolution of ecological specialization, as organisms can rarely specialize on more than one niche. Here we ask whether flowers can be specialized for more than one pollinator group. We studied an outcrossing plant, Aloe kraussii (Asphodelaceae), whose floral morphology is intermediate between that of exclusively bird- and exclusively insect-pollinate ...
DOI:
10.1016/j.sajb.2019.04.013

14. Anther and ovule development in Clematis terniflora var. mandshurica (Ranunculaceae)

Author:
Yang, Yi; Guo, Xiao; Wang, Kui-ling; Liu, Qing-hua; Liu, Qing-chao
Source:
Flora 2019 v.253 pp. 67-75
ISSN:
0367-2530
Subject:
anthers,   etc   ; Clematis terniflora var. mandshurica; cytokinesis; embryo sac; embryology; megaspores; megasporocytes; megasporogenesis; meiosis; microsporogenesis; phylogeny; pollen;     Show all 12 Subjects
Abstract:
... Embryology can provide valuable information for determining taxonomic and phylogenetic relationships at the genus level. However, embryological information is fragmentary for the genus of Clematis. Herein, we studied the anther and ovule development of Clematis terniflora var. mandshurica using paraffin sections to examine microsporogenesis, microgametogenesis, megasporogenesis and macrogametogene ...
DOI:
10.1016/j.flora.2019.03.008

15. Nomenclatural novelties in Miconia (Melastomataceae: Miconieae)

Author:
Michelangeli, Fabián A.; Goldenberg, Renato; Almeda, Frank; Judd, Walter S.; Bécquer, Eldis R.; Ocampo, Gilberto; Ionta, Gretchen M.; Skean, J. Dan, Jr; Majure, Lucas C.; Penneys, Darin S.
Source:
Brittonia 2019 v.71 no.1 pp. 82-121
ISSN:
0007-196X
Subject:
anthers,   etc   ; Clidemia; Miconia; flowers; leaves; monophyly; paraphyly; plant taxonomy; small fruits;     Show all 9 Subjects
Abstract:
... The Miconieae (Melastomaceae) are a strictly Neotropical group comprising over 1900 species. The tribe is characterized by inflorescences that are terminal or axillary, but not cauliflorous (except a few species of Charianthus, Clidemia, and Mecranium), flowers subtended by only one pair of bracteoles (or none at all), with anthers that lack a pedoconnective, leaves without long acicular raphides, ...
DOI:
10.1007/s12228-018-9546-0

16. Pollen meiosis and chilling requirements in sweet cherry

Author:
Fadon, E.; Herrero, M.; Rodrigo, J.
Source:
Acta horticulturae 2019 no.1235 pp. 395-400
ISSN:
0567-7572
Subject:
anthers,   etc   ; Prunus avium; cold treatment; cultivars; dormancy; flower primordia; flowering date; meiosis; perennials; pollen; temperature; winter;     Show all 12 Subjects
Abstract:
... In sweet cherry, as other temperate woody perennials, cycles of growth and dormancy are synchronized with the seasons. Flower primordia survive to low winter temperatures entering a dormant stage, but chilling is also required for a proper blooming. However, the biological mechanisms behind dormancy and chilling requirements are still not fully understood. In other species, pollen meiosis has been ...
DOI:
10.17660/ActaHortic.2019.1235.54

17. Spiradiclis cavicola (Rubiaceae), a New Species from Limestone Caves in Southwestern China

Author:
Pan, Bo; Tu, Rong-Hui; Hareesh, Vadakkoot-Sankaran; Wu, Lei
Source:
Annales botanici Fennici 2019 v.56 no.1-3 pp. 1-4
ISSN:
0003-3847
Subject:
anthers,   etc   ; Rubiaceae; caves; corolla; leaf blade; limestone; new species; petioles; scientific illustration; stigma; taxon descriptions; China;     Show all 12 Subjects
Abstract:
... Spiradiclis cavicola L. Wu, Hareesh & B. Pan (Rubiaceae), a new species from limestone caves in Guizhou and Guangxi provinces, southwestern China, is described and illustrated. It is morphologically similar to S. scabrida, but can be easily distinguished by its 0.5–3 cm long petiole, elliptic to oblong leaf blade, and homostylous flowers with anthers and stigma positioned at the throat of corolla ...
DOI:
10.5735/085.056.0101

18. The effect of temperature on olive pollen germination

Author:
Vuletin Selak, G.; Goreta Ban, S.; Perica, S.
Source:
Acta horticulturae 2019 no.1231 pp. 49-54
ISSN:
0567-7572
Subject:
anthers,   etc   ; Olea europaea; cultivars; flowering; genotype; olives; plant breeders; pollen; pollen tubes; temperature;     Show all 10 Subjects
Abstract:
... Temperature is an important factor controlling plant growth and development. The reproductive phase has proven to be one of the most temperature sensitive stages in plants. Pollen grains, once released from anthers, act as independent functional units and are exposed to the ambient environment. Therefore, temperature shifts during flowering may severely affect pollen germination and be correlated ...
DOI:
10.17660/ActaHortic.2019.1231.9

19. Ardisia agasthyamalayana (Primulaceae), a new species from the Western Ghats, India

Author:
Ahammed, Nazarudeen; Gopalaprabhu, Rajkumar; Mohan, Alister
Source:
Webbia 2019 v.74 no.1 pp. 51-56
ISSN:
2169-4060
Subject:
anthers,   etc   ; Ardisia; color; hills; leaves; new species; peduncle; phenology; photographs; racemes; India;     Show all 11 Subjects
Abstract:
... Ardisia agasthyamalayana is described as a new species from the Chemunji hills of Agasthyamala, Western Ghats, India. The species is included in the subgenus Akosmos on account of the presence of the axillary and sub-terminal umbellate racemes with short peduncles, slightly shorter than the foliage and the styles shortly protruding above anthers. Detailed description, illustrations, colour photogr ...
DOI:
10.1080/00837792.2018.1546922

20. Floral organogenesis of Prunus laurocerasus and P. serotina and its significance for the systematics of the genus and androecium diversity in Rosaceae

Author:
Wang, Xi; Gong, Jing-zhi; Li, Qiu-jie; Wang, Jun-ru; Ma, Yue-ping; Zhang, Xiao-hui; Chang, Zhao-yang; Wen, Jun; Zhao, Liang
Source:
Botany 2019 v.97 no.1 pp. 71-84
ISSN:
1916-2804
Subject:
anthers,   etc   ; Prunus laurocerasus; Prunus serotina; flowering; integument; ovules; phylogeny; scanning electron microscopy;     Show all 8 Subjects
Abstract:
... Phylogenetic studies have shown that most clades in Prunus are well-supported by the flower structure, but most taxa in the racemose group have not yet been re-evaluated and could contribute to the understanding of the systematic relationships of the subgenera. We examined the inflorescence and flower development in Prunus laurocerasus L. (subgenus Laurocerasus) and P. serotina Ehrh. (subgenus Pad ...
DOI:
10.1139/cjb-2018-0026