Phylogenetics of Olea (Oleaceae) based on plastid and nuclear ribosomal DNA sequences: tertiary climatic shifts and lineage differentiation times.

abstract：:The various pollen dispersal units (PDU) found in orchids are discussed together with possible evolutionary trends and the consequences for germination and fertilization. Orchids with monad and tetrad pollen form more complex dispersal units by means of pollenkitt, elastoviscin, a callosic wall, common walls or a comb...

journal_title：Annals of botany

authors： Pacini E,Hesse M

更新日期：2002-06-01 00:00:00

abstract：BACKGROUND AND AIMS:The pseudometallophyte Noccaea caerulescens is an excellent model to study evolutionary processes, as it grows both on normal and on heavy-metal-rich, toxic soils. The evolution and demography of populations are critically impacted by mating system and, yet, information about the N. caerulescens mat...

journal_title：Annals of botany

authors： Mousset M,David P,Petit C,Pouzadoux J,Hatt C,Flaven É,Ronce O,Mignot A

更新日期：2016-03-01 00:00:00

abstract：BACKGROUND AND METHODS:Polyploidy results in genetic turmoil, much of which is associated with new phenotypes that result in speciation. Five independent lines of synthetic allotetraploid N. x obtusiata (N x o) were created from crosses between the diploid N. attenuata (Na) (male) and N. obtusifolia (No) (female) and t...

journal_title：Annals of botany

authors： Anssour S,Krügel T,Sharbel TF,Saluz HP,Bonaventure G,Baldwin IT

更新日期：2009-06-01 00:00:00

abstract：BACKGROUND AND AIMS:Transgene introgression from crops into wild relatives may increase the resistance of wild plants to herbicides, insects, etc. The chance of transgene introgression depends not only on the rate of hybridization and the establishment of hybrids in local wild populations, but also on the metapopulatio...

journal_title：Annals of botany

authors： Rong J,Xu S,Meirmans PG,Vrieling K

更新日期：2013-11-01 00:00:00

abstract：BACKGROUND AND AIMS:Nitric oxide (NO) has been demonstrated to stimulate the activity of nitrate reductase (NR) in plant roots supplied with a low level of nitrate, and to affect proteins differently, depending on the ratio of NO to the level of protein. Nitrate has been suggested to regulate the level of NO in plants....

journal_title：Annals of botany

authors： Jin CW,Du ST,Zhang YS,Lin XY,Tang CX

更新日期：2009-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Land-use changes and associated extinction/colonization dynamics can have a large impact on population genetic diversity of plant species. The aim of this study was to investigate genetic diversity in a founding population of the self-incompatible forest herb Primula elatior and to elucidate the pro...

journal_title：Annals of botany

authors： Jacquemyn H,Vandepitte K,Roldán-Ruiz I,Honnay O

更新日期：2009-03-01 00:00:00

abstract：BACKGROUND AND AIMS:Bamboo is well known for its fast growth and excellent mechanical performance, but the underlying relationships between its structure and properties are only partially known. Since it lacks secondary thickening, bamboo cannot use adaptive growth in the same way as a tree would in order to modify the...

journal_title：Annals of botany

authors： Wang X,Keplinger T,Gierlinger N,Burgert I

更新日期：2014-12-01 00:00:00

abstract：:A procedure is described for obtaining allometric regression equations to estimate non-destructively and in a cost-effective manner the current year's above-ground vegetative and reproductive biomass of Vitis vinifera L. Merlot' throughout the growing season. Significant relationships were obtained over a 3-year perio...

journal_title：Annals of botany

authors： Castelan-Estrada M,Vivin P,Gaudillère JP

更新日期：2002-04-01 00:00:00

abstract：:The transgene in Agrobacterium-mediated Cry1A(b)-transgenic rice plants has been detected and its chromosomal location determined by fluorescence in situ hybridization (FISH). Eight of the nine transgenic lines tested showed hybridization signals. Signals were located on regions of the chromosome in which fraction len...

journal_title：Annals of botany

authors： Jin WW,Li ZY,Fang Q,Altosaar I,Liu LH,Song YC

更新日期：2002-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Archipelagos are unique systems for studying evolutionary processes promoting diversification and speciation. The islands of the Mediterranean basin are major areas of plant richness, including a high proportion of narrow endemics. Many endemic plants are currently found in rocky habitats, showing v...

journal_title：Annals of botany

authors： Mayol M,Palau C,Rosselló JA,González-Martínez SC,Molins A,Riba M

更新日期：2012-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Apomictic plants maintain functional pollen, and via pollination the genetic factors controlling apomixis can be potentially transferred to congeneric sexual populations. In contrast, the sexual individuals do not fertilize apomictic plants which produce seeds without fertilization of the egg cells....

journal_title：Annals of botany

authors： Hörandl E,Temsch EM

更新日期：2009-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Organisms occupying the edges of natural geographical ranges usually survive at the extreme limits of their innate physiological tolerances. Extreme and prolonged fluctuations in environmental conditions, often associated with climate change and exacerbated at species' geographical range edges, are ...

journal_title：Annals of botany

authors： Sinclair EA,Statton J,Hovey R,Anthony JM,Dixon KW,Kendrick GA

更新日期：2016-02-01 00:00:00

abstract：BACKGROUND AND AIMS:The tam (tardy asynchronous meiosis) mutant of Arabidopsis thaliana, which exhibits a modified cytokinesis with a switch from simultaneous to successive cytokinesis, was used to perform a direct test of the implication of cytokinesis in aperture-pattern ontogeny of angiosperm pollen grains. The aper...

journal_title：Annals of botany

authors： Albert B,Raquin C,Prigent M,Nadot S,Brisset F,Yang M,Ressayre A

更新日期：2011-06-01 00:00:00

abstract：BACKGROUND AND AIMS:Intraspecific variation in flooding tolerance is the basic pre-condition for adaptive flooding tolerance to evolve, and flooding-induced shoot elongation is an important trait that enables plants to survive shallow, prolonged flooding. Here an investigation was conducted to determine to what extent ...

journal_title：Annals of botany

authors： Chen X,Huber H,de Kroon H,Peeters AJ,Poorter H,Voesenek LA,Visser EJ

更新日期：2009-11-01 00:00:00

abstract：BACKGROUND:Opal phytoliths (microscopic silica bodies produced in and between the cells of many plants) are a very resilient, often preserved type of plant microfossil. With the exponentially growing number of phytolith studies, standardization of phytolith morphotype names and description is essential. As a first effo...

journal_title：Annals of botany

authors： International Committee for Phytolith Taxonomy (ICPT).

更新日期：2019-09-24 00:00:00

abstract：:Experiments were carried out at IGER, Aberystwyth, UK to investigate traits of direct relevance to the processes of overwintering and spring growth in white clover (Trifolium repens L.). The plant material used was derived from baseline populations of the cultivar AberHerald and survivor populations generated after 2-...

journal_title：Annals of botany

authors： Collins RP,Helgadóttir A,Fothergill M,Rhodes I

更新日期：2002-03-01 00:00:00

abstract：BACKGROUND:The study of soil biota in the context of exotic plant invasions has led to an explosion in our understanding of the ecological roles of many different groups of microbes that function in roots or at the root-soil interface. Part of this progress has been the emergence of two biogeographic patterns involving...

journal_title：Annals of botany

authors： Rout ME,Callaway RM

更新日期：2012-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Natural regeneration of white spruce (Picea glauca) after disturbance has been reported to be very poor. Here a study was made to determine whether C compounds released from understorey species growing together with white spruce could be involved in this regeneration failure, either by (1) changing ...

journal_title：Annals of botany

authors： Castells E,Peñuelas J,Valentine DW

更新日期：2005-06-01 00:00:00

abstract：:Background and Aims Allozyme and reproductive data sets for the Canarian flora are updated in order to assess how the present levels and structuring of genetic variation have been influenced by the abiotic island traits and by phylogenetically determined biotic traits of the corresponding taxa; and in order to suggest...

journal_title：Annals of botany

authors： Pérez de Paz J,Caujapé-Castells J

更新日期：2013-06-01 00:00:00

abstract：BACKGROUND AND AIMS:Many alpine plant species combine clonal and sexual reproduction to minimize the risks of flowering and seed production in high mountain regions. The spatial genetic structure and diversity of these alpine species is strongly affected by different clonal strategies (phalanx or guerrilla) and the pro...

journal_title：Annals of botany

authors： Reisch C,Schurm S,Poschlod P

更新日期：2007-04-01 00:00:00

abstract：BACKGROUND AND AIMS:Data are presented from 39 species of mosses and 16 liverworts for ratios of chlorophylls and total carotenoids, and light saturation of photosynthetic electron flow or photosynthetic CO2 uptake, in relation to the postulate that bryophyte cells in general show shade-plant characteristics. METHODS:...

journal_title：Annals of botany

authors： Marschall M,Proctor MC

更新日期：2004-10-01 00:00:00

abstract：BACKGROUND:Submerged plants composed of charophytes (green algae) and angiosperms develop dense vegetation in small, shallow lakes and in littoral zones of large lakes. Many small, oligotrophic plant species have declined due to drainage and fertilization of lakes, while some tall, eutrophic species have increased. Alt...

journal_title：Annals of botany

authors： Sand-Jensen K,Andersen MR,Martinsen KT,Borum J,Kristensen E,Kragh T

更新日期：2019-10-18 00:00:00

abstract：BACKGROUND AND AIMS:Alterations of plasmodesma (PD) connectivity are likely to be very important for plant development. Here, the repetitive division pattern of cambial initials in Populus nigra 'italica' was studied to follow the development of the PD network during maturation. Furthermore, seasonal changes were inves...

journal_title：Annals of botany

authors： Fuchs M,van Bel AJ,Ehlers K

更新日期：2010-03-01 00:00:00

abstract：BACKGROUND AND AIMS:Lippia scaberrima, an aromatic indigenous South African plant, with medicinal application, potentially has economic value. The production of essential oil from this plant has not been optimized, and this study of the chemico-morphological characteristics was aimed at determining the location of oil ...

journal_title：Annals of botany

authors： Combrinck S,Du Plooy GW,McCrindle RI,Botha BM

更新日期：2007-06-01 00:00:00

abstract：BACKGROUND:Many areas throughout the world are simultaneously contaminated by high concentrations of soluble salts and by high concentrations of heavy metals that constitute a serious threat to human health. The use of plants to extract or stabilize pollutants is an interesting alternative to classical expensive decont...

journal_title：Annals of botany

authors： Lutts S,Lefèvre I

更新日期：2015-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Quercus coccifera, as a long-lived sprouter, responds plastically to environmental variation. In this study, the role of foliar plasticity as a mechanism of habitat selection and modification within the canopy and across contrasted habitats was characterized. An examination was made of the different...

journal_title：Annals of botany

authors： Rubio De Casas R,Vargas P,Pérez-Corona E,Manrique E,Quintana JR,García-Verdugo C,Balaguer L

更新日期：2007-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Successful cryopreservation of bryophytes is linked to intrinsic desiccation tolerance and survival can be enhanced by pre-treatment with abscisic acid (ABA) and sucrose. The pioneer moss Ditrichum plumbicola is naturally subjected to desiccation in the field but showed unexpectedly low survival of ...

journal_title：Annals of botany

authors： Rowntree JK,Duckett JG,Mortimer CL,Ramsay MM,Pressel S

更新日期：2007-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Plant cyanogenesis is the release of toxic cyanide from endogenous cyanide-containing compounds, typically cyanogenic glycosides. Despite a large body of phytochemical, taxonomic and ecological work on cyanogenic species, little is known of their frequency in natural plant communities. This study ai...

journal_title：Annals of botany

authors： Miller RE,Jensen R,Woodrow IE

更新日期：2006-06-01 00:00:00

abstract：BACKGROUND AND AIMS:The large monophyletic genus Mimosa comprises approx. 500 species, most of which are native to the New World, with Central Brazil being the main centre of radiation. All Brazilian Mimosa spp. so far examined are nodulated by rhizobia in the betaproteobacterial genus Burkholderia. Approximately 10 My...

journal_title：Annals of botany

authors： Gehlot HS,Tak N,Kaushik M,Mitra S,Chen WM,Poweleit N,Panwar D,Poonar N,Parihar R,Tak A,Sankhla IS,Ojha A,Rao SR,Simon MF,Reis Junior FB,Perigolo N,Tripathi AK,Sprent JI,Young JP,James EK,Gyaneshwar P

更新日期：2013-07-01 00:00:00

abstract：:Apple is an important crop and a focus of research worldwide. However, some aspects of floral commitment and morphogenesis remain unclear. A detailed characterization of bourse shoot apex development was undertaken to provide a framework for future genetic, molecular and physiological studies. Eight morphologically di...

journal_title：Annals of botany

authors： Foster T,Johnston R,Seleznyova A

更新日期：2003-08-01 00:00:00