Towards an eco-evolutionary understanding of endemism hotspots and refugia.

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: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:Bristol rock cress is among the few plant species in the British Isles considered to have a Mediterranean-montane element. Spatiotemporal patterns of colonization of the British Isles since the last interglacial and after the Last Glacial Maximum (LGM) from mainland Europe are underexplored and have...

journal_title：Annals of botany

authors： Koch MA,Möbus J,Klöcker CA,Lippert S,Ruppert L,Kiefer C

更新日期：2020-06-19 00:00:00

abstract：BACKGROUND AND AIMS:Polyploids, organisms that have multiple sets of chromosomes, are common in certain plant and animal taxa. However, there are only a few reports of intraspecific ploidy variation within the genus Quercus. The aim of the study was to investigate the suspected ploidy level of two oaks that have unusua...

journal_title：Annals of botany

authors： Dzialuk A,Chybicki I,Welc M,Sliwinska E,Burczyk J

更新日期：2007-05-01 00:00:00

abstract：BACKGROUND AND AIMS:When root-zone O(2) deficiency occurs together with salinity, regulation of shoot ion concentrations is compromised even more than under salinity alone. Tolerance was evaluated amongst 34 accessions of Hordeum marinum, a wild species in the Triticeae, to combined salinity and root-zone O(2) deficien...

journal_title：Annals of botany

authors： Malik AI,English JP,Colmer TD

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND AND AIMS:Different populations of the Mediterranean xerohalophyte species Atriplex halimus exhibit different levels of resistance to salt and osmotic stress depending on the nature of the osmocompatible solute they accumulate. There is, however, no conclusive description of the involvement of abscisic acid (...

journal_title：Annals of botany

authors： Ben Hassine A,Ghanem ME,Bouzid S,Lutts S

更新日期：2009-10-01 00:00:00

abstract：BACKGROUND AND AIMS:Artemisia halodendron is a native sub-shrub that occurs mainly in moving and semi-fixed sandy lands in Inner Mongolia, China. Information on the spatial patterns of wind-dispersed seed deposition and seedling recruitment of A. halodendron inhabiting moving sandy lands is very limited. The aim of thi...

journal_title：Annals of botany

authors： Li FR,Wang T,Zhang AS,Zhao LY,Kang LF,Chen W

更新日期：2005-07-01 00:00:00

abstract：BACKGROUND AND AIMS:The use of microarrays to characterize the transcript profile of Arabidopsis under various experimental conditions is rapidly expanding. This technique provides a huge amount of expression data, requiring bioinformatics tools to allow the proposal of working hypotheses. The aim of this study was to ...

journal_title：Annals of botany

authors： Gonzali S,Loreti E,Novi G,Poggi A,Alpi A,Perata P

更新日期：2005-09-01 00:00:00

abstract：:Adventitious root development in lamina and midrib-petiole junction expiants of sugar beet cv. Primo was investigated using scanning electron microscopy and light microscopy. Primordia developed close to the vascular strands and areas of newly dividing cells (meristematic centres) were seen adjacent to the intrafascic...

journal_title：Annals of botany

authors： Gürel E,Wren MJ

更新日期：1995-01-01 00:00:00

abstract：:Elevated CO(2) and ozone effects were studied singly and in combination on the crown structure of two Betula pendula clones. Measurements were made at the end of the second fumigation period in an open-top-chamber experiment with 9-year-old trees. Shoot ramification (number of long and short daughter shoots), shoot le...

journal_title：Annals of botany

authors： Kull O,Tulva I,Vapaavuori E

更新日期：2003-04-01 00:00:00

abstract：Background and Aims:Root architecture development determines the sites in soil where roots provide input of carbon and take up water and solutes. However, root architecture is difficult to determine experimentally when grown in opaque soil. Thus, root architecture models have been widely used and been further developed...

journal_title：Annals of botany

authors： Schnepf A,Leitner D,Landl M,Lobet G,Mai TH,Morandage S,Sheng C,Zörner M,Vanderborght J,Vereecken H

更新日期：2018-04-18 00:00:00

abstract：Background and Aims:Knowledge of thermal acclimation of physiological processes of boreal tree species is necessary to determine their ability to adapt to predicted global warming and reduce the uncertainty around the anticipated feedbacks of forest ecosystems and global carbon cycle to climate change. The objective of...

journal_title：Annals of botany

authors： Benomar L,Lamhamedi MS,Pepin S,Rainville A,Lambert MC,Margolis HA,Bousquet J,Beaulieu J

更新日期：2018-03-05 00:00:00

abstract：BACKGROUND:Carboxylate-releasing cluster roots of Proteaceae play a key role in acquiring phosphorus (P) from ancient nutrient-impoverished soils in Australia. However, cluster roots are also found in Proteaceae on young, P-rich soils in Chile where they allow P acquisition from soils that strongly sorb P. SCOPE:Unlik...

journal_title：Annals of botany

authors： Lambers H,Bishop JG,Hopper SD,Laliberté E,Zúñiga-Feest A

更新日期：2012-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Concomitant increases in O(2) and irradiance upon de-submergence can cause photoinhibition and photo-oxidative damage to the photosynthetic apparatus of plants. As energy and carbohydrate supply from photosynthesis is needed for growth, it was hypothesized that post-submergence growth recovery may r...

journal_title：Annals of botany

authors： Luo FL,Nagel KA,Zeng B,Schurr U,Matsubara S

更新日期：2009-12-01 00:00:00

abstract：BACKGROUND AND AIMS:The aim of this study was to investigate the importance of pyrophosphate (PPi) for plant metabolism and survival under low oxygen stress. Responses of roots of wild-type potato plants were compared with roots of transgenic plants containing decreased amounts of PPi as a result of the constitutive ex...

journal_title：Annals of botany

authors： Mustroph A,Albrecht G,Hajirezaei M,Grimm B,Biemelt S

更新日期：2005-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Acer saccharum and Fagus grandifolia are among the most dominant late-successional tree species in North America. The influence of sapling growth responses to canopy gaps on the co-dominance of the two species in an old-growth forest in southern Quebec, Canada was examined. Two predictions were eval...

journal_title：Annals of botany

authors： Takahashi K,Lechowicz MJ

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND AND AIMS:Arachis batizocoi is a wild relative of cultivated peanut (A. hypogaea), an allotetraploid with an AABB genome. Arachis batizocoi was once considered the ancestral donor of the peanut B genome, but cytogenetics and DNA phylogenies have indicated a new genome classification, 'K'. These observations s...

journal_title：Annals of botany

authors： Leal-Bertioli SC,Santos SP,Dantas KM,Inglis PW,Nielen S,Araujo AC,Silva JP,Cavalcante U,Guimarães PM,Brasileiro AC,Carrasquilla-Garcia N,Penmetsa RV,Cook D,Moretzsohn MC,Bertioli DJ

更新日期：2015-02-01 00:00:00

abstract：UNLABELLED:BACKGROUND AND AIMS; This study is an investigation into the floral development and anatomy of two genera of the small family Salvadoraceae, which belongs to the Brassicales in a clade with Batis and Koeberlinia. Salvadoraceae remains little known, despite its wide distribution in arid areas of the globe. Fl...

journal_title：Annals of botany

authors： Ronse De Craene L,Wanntorp L

更新日期：2009-10-01 00:00:00

abstract：AIMS:The objective of the study was to characterize variations in proline, arginine, histidine, vegetative storage proteins, and cold-inducible gene expression in overwintering roots of field-grown alfalfa, in response to autumn defoliation, and in relation to spring regrowth and winter survival. METHODS:Field trials,...

journal_title：Annals of botany

authors： Dhont C,Castonguay Y,Nadeau P,Bélanger G,Drapeau R,Laberge S,Avice JC,Chalifour FP

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND AND AIMS:During sexual reproduction in higher angiosperms, the pollen tubes are directed to the ovules in the pistil to deliver sperm cells. This pollen tube attraction is highly species specific, and a group of small secreted proteins, TfCRPs, are necessary for this process in Torenia fournieri. METHODS:A ...

journal_title：Annals of botany

authors： Kanaoka MM,Kawano N,Matsubara Y,Susaki D,Okuda S,Sasaki N,Higashiyama T

更新日期：2011-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Although allopolyploidy is a prevalent speciation mechanism in plants, its adaptive consequences are poorly understood. In addition, the effects of allopolyploidy per se (i.e. hybridization and chromosome doubling) can be confounded with those of subsequent evolutionary divergence between allopolypl...

journal_title：Annals of botany

authors： Quintanilla LG,Escudero A

更新日期：2006-09-01 00:00:00

abstract：BACKGROUND AIMS:One of the classic examples of an allopolyploid is Iris versicolor, 'Blue Flag' (2n = 108), first studied by Edgar Anderson and later popularized by George Ledyard Stebbins in cytogenetics and evolutionary text-books. It is revisited here using modern molecular and cytogenetic tools to investigate its p...

journal_title：Annals of botany

authors： Lim KY,Matyasek R,Kovarik A,Leitch A

更新日期：2007-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Rheum, a highly diversified genus with about 60 species, is mainly confined to the mountainous and desert regions of the Qinghai-Tibetan plateau and adjacent areas. This genus represents a good example of the extensive diversification of the temperate genera in the Qinghai-Tibetan plateau, in which ...

journal_title：Annals of botany

authors： Wang A,Yang M,Liu J

更新日期：2005-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Aluminium is toxic in acid soils because the soluble Al(3+) inhibits root growth. A mechanism of Al(3+) tolerance discovered in many plant species involves the release of organic anions from root apices. The Al(3+)-activated release of citrate from the root apices of Al(3+)-tolerant genotypes of bar...

journal_title：Annals of botany

authors： Zhou G,Delhaize E,Zhou M,Ryan PR

更新日期：2013-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Hordeum marinum is a species complex that includes the diploid subspecies marinum and both diploid and tetraploid forms of gussoneanum. Their relationships, the rank of the taxa and the origin of the polyploid forms remain points of debate. The present work reports a comparative karyotype analysis o...

journal_title：Annals of botany

authors： Carmona A,Friero E,de Bustos A,Jouve N,Cuadrado A

更新日期：2013-12-01 00:00:00

abstract：BACKGROUND AND AIMS:Seagrasses are marine, flowering plants with a hydrophilous pollination strategy. In these plants, successful mating requires dispersal of filamentous pollen grains through the water column to receptive stigmas. Approximately 40 % of seagrass species are monoecious, and therefore little pollen movem...

journal_title：Annals of botany

authors： Sinclair EA,Gecan I,Krauss SL,Kendrick GA

更新日期：2014-06-01 00:00:00

abstract：BACKGROUND:Pollen is the male gametophyte of higher plants. Upon pollination, it germinates and develops into a fast-growing cytoplasmic extension, the pollen tube, which ultimately delivers the sperm into the ovary. The biological relevance of its role, and the uniqueness of this kind of cellular organization, have ma...

journal_title：Annals of botany

authors： Becker JD,Feijó JA

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND AND AIMS:Several biogeographic models have been proposed to explain the colonization and diversification patterns of Macaronesian lineages. In this study, we calculated the diversification rates and explored what model better explains the current distribution of the 15 endemic species to the Canary Islands b...

journal_title：Annals of botany

authors： Albaladejo RG,Martín-Hernanz S,Reyes-Betancort JA,Santos-Guerra A,Olangua-Corral M,Aparicio A

更新日期：2020-05-09 00:00:00

abstract：Background and Aims:Fossil plants are found as fragmentary remains and understanding them as natural species requires assembly of whole-organism concepts that integrate different plant parts. Such concepts are essential for incorporating fossils in hypotheses of plant evolution and phylogeny. Plants of the Early Devoni...

journal_title：Annals of botany

authors： Matsunaga KKS,Tomescu AMF

更新日期：2017-05-01 00:00:00

abstract：Background:Quiescence is a fundamental feature of plant life, which enables plasticity, renewal and fidelity of the somatic cell line. Cellular quiescence is defined by arrest in a particular phase of the cell cycle, typically G1 or G2; however, the regulation of quiescence and proliferation can also be considered acro...

journal_title：Annals of botany

authors： Velappan Y,Signorelli S,Considine MJ

更新日期：2017-10-17 00:00:00