Characteristic thickened cell walls of the bracts of the 'eternal flower' Helichrysum bracteatum.

abstract：BACKGROUND AND AIMS:Selection may favour a partial or complete loss of self-incompatibility (SI) if it increases the reproductive output of individuals in the presence of low mate availability. The reproductive output of individuals varying in their strength of SI may also be affected by population density via its affe...

journal_title：Annals of botany

authors： Ferrer MM,Good-Avila SV,Montaña C,Domínguez CA,Eguiarte LE

更新日期：2009-05-01 00:00:00

abstract：BACKGROUND AND AIMS:Spring geophytes require a period of low temperature for proper flower development but the mechanism that underlies the relationship between cold treatment and flowering remains unknown. The present study aims to compare the developmental anatomy and carbohydrate content of the tuberous geophyte Cor...

journal_title：Annals of botany

authors： Khodorova NV,Miroslavov EA,Shavarda AL,Laberche JC,Boitel-Conti M

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND AND AIMS:Late-acting self-incompatibility (LSI), in which selfed flowers fail to form fruits despite apparently successful growth of the pollen tubes to the ovules, is a contentious and still poorly understood phenomenon. Some studies have indicated pollen tube-pistil interactions, and major gene control. Ot...

journal_title：Annals of botany

authors： Gibbs P,Bianchi MB,Taroda Ranga N

更新日期：2004-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Floral nectar concentration and chemical composition of 26 plant species native to the temperate forest of southern South America are reported and the relationships with the flower type are evaluated. METHODS:Nectar concentration was measured with a hand refractometer and sugar composition was anal...

journal_title：Annals of botany

authors： Chalcoff VR,Aizen MA,Galetto L

更新日期：2006-03-01 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:Afromontane forests host a unique biodiversity distributed in isolated high-elevation habitats within a matrix of rain forests or savannahs, yet they share a remarkable flora that raises questions about past connectivity between currently isolated forests. Here, we focused on the Podocarpus latifoli...

journal_title：Annals of botany

authors： Migliore J,Lézine AM,Hardy OJ

更新日期：2020-06-19 00:00:00

abstract：BACKGROUND AND AIMS:Size-asymmetric competition occurs when larger plants have a disproportionate advantage in competition with smaller plants. It has been hypothesized that nutrient heterogeneity may promote it. Experiments testing this hypothesis are inconclusive, and in most cases have evaluated the effects of nutri...

journal_title：Annals of botany

authors： Maestre FT,Reynolds JF

更新日期：2006-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Flavonoids have the potential to serve as antioxidants in addition to their function of UV screening in photoprotective mechanisms. However, flavonoids have long been reported to accumulate mostly in epidermal cells and surface organs in response to high sunlight. Therefore, how leaf flavonoids actu...

journal_title：Annals of botany

authors： Agati G,Stefano G,Biricolti S,Tattini M

更新日期：2009-10-01 00:00:00

abstract：:Plants adjust their sink-organ growth rates, development and distribution of dry matter in response to whole-plant photosynthate status. To advance understanding of these processes, potato (Solanum tuberosum L.) plants were subjected to CO(2) and light flux treatments, and early tuber growth was assessed. Atmospheric ...

journal_title：Annals of botany

authors： Chen CT,Setter TL

更新日期：2003-02-01 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:Light interception is closely related to canopy architecture. Few studies based on multi-view photography have been conducted in a field environment, particularly studies that link 3-D plant architecture with a radiation model to quantify the dynamic canopy light interception. In this study, we comb...

journal_title：Annals of botany

authors： Zhu B,Liu F,Xie Z,Guo Y,Li B,Ma Y

更新日期：2020-09-14 00:00:00

abstract：BACKGROUND AND AIMS:Phytochrome B (phyB) is a photosensory receptor important for the control of plant plasticity and resource partitioning. Whether phyB is required to optimize plant biomass accumulation in agricultural crops exposed to full sunlight is unknown. Here we investigated the impact of mutations in the gene...

journal_title：Annals of botany

authors： Wies G,Mantese AI,Casal JJ,Maddonni GÁ

更新日期：2019-06-24 00:00:00

abstract：BACKGROUND AND AIMS:Nuclear DNA amounts of 12 diploid and one tetraploid taxa and 12 natural interspecific hybrids of Cirsium from 102 populations in the Czech Republic, Austria, Slovakia and Hungary were estimated. METHODS:DAPI and PI flow cytometry were used. KEY RESULTS:2C-values of diploid (2n = 34) species varie...

journal_title：Annals of botany

authors： Bures P,Wang YF,Horova L,Suda J

更新日期：2004-09-01 00:00:00

abstract：:Changes in cell number during the early period of tomato fruit development were analysed by means of a deterministic model of cell multiplication. The period commenced at the seed stage with one theoretical cell undergoing intensive cell division, and ended when the cell number became nearly constant. The model takes ...

journal_title：Annals of botany

authors： Bertin N,Genard M,Fishman S

更新日期：2003-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Mikania micrantha, a climbing perennial weed of the family Asteraceae, is native to Latin America and is highly invasive in the tropical belt of Asia, Oceania and Australia. This study was framed to investigate the population structure of M. micrantha at a large spatial scale in Asia and to identify...

journal_title：Annals of botany

authors： Banerjee AK,Hou Z,Lin Y,Lan W,Tan F,Xing F,Li G,Guo W,Huang Y

更新日期：2020-06-01 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:Mongolian Scots pine (Pinus sylvestris var. mongolica) is one of the principal species used for windbreak and sand stabilization in arid and semi-arid areas in northern China. A model-assisted analysis of its canopy architectural development and functions is valuable for better understanding its beh...

journal_title：Annals of botany

authors： Wang F,Kang M,Lu Q,Letort V,Han H,Guo Y,de Reffye P,Li B

更新日期：2011-04-01 00:00:00

abstract：BACKGROUND AND AIMS:Water deficit and salinity stresses are often experienced by plants concurrently; however, knowledge is limited about the effects of combined salinity and water deficit stress in plants, and especially in C4 bioenergy crops. Here we aim to understand how diverse drought tolerance traits may deliver ...

journal_title：Annals of botany

authors： Stavridou E,Webster RJ,Robson PRH

更新日期：2019-10-29 00:00:00

abstract：:Although active oxygen species are produced at high rates in both the chloroplasts and peroxisomes of the leaves of C3 plants, most attention has focused on the potentially damaging consequences of enhanced chloroplastic production in stress conditions such as drought. This article attempts to provide quantitative est...

journal_title：Annals of botany

authors： Noctor G,Veljovic-Jovanovic S,Driscoll S,Novitskaya L,Foyer CH

更新日期：2002-06-01 00:00:00

abstract：BACKGROUND AND AIMS:Myrmecochory is a conspicuous feature of several sclerophyll ecosystems around the world but it has received little attention in the semi-arid areas of South America. This study addresses the importance of seed dispersal by ants in a 2500-km(2) area of the Caatinga ecosystem (north-east Brazil) and ...

journal_title：Annals of botany

authors： Leal IR,Wirth R,Tabarelli M

更新日期：2007-05-01 00:00:00

abstract：BACKGROUND:In studies looking at individual polyploid species, the most common patterns of genomic change are that either genome size in the polyploid is additive (i.e. the sum of parental genome donors) or there is evidence of genome downsizing. Reports showing an increase in genome size are rare. In a large-scale ana...

journal_title：Annals of botany

authors： Leitch IJ,Hanson L,Lim KY,Kovarik A,Chase MW,Clarkson JJ,Leitch AR

更新日期：2008-04-01 00:00:00

abstract：BACKGROUND AND AIMS:While nuclear DNA content variation and its phenotypic consequences have been well described for animals, vascular plants and macroalgae, much less about this topic is known regarding unicellular algae and protists in general. The dearth of data is especially pronounced when it comes to intraspecifi...

journal_title：Annals of botany

authors： Čertnerová D,Škaloud P

更新日期：2020-10-30 00:00:00

abstract：:SF21 was originally described as a pollen- and pistil-expressed protein from sunflower and tobacco. In pistils excised from these species, transcripts were detected in the stigma and in the transmitting tissue where they accumulated in an ovary-oriented increasing concentration gradient. We studied the cellular locali...

journal_title：Annals of botany

authors： Kräuter-Canham R,Bronner R,Steinmetz A

更新日期：2001-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Solanaceae seed morphology and physiology have been widely studied but mainly in domesticated crops. The present study aimed to compare the seed morphology and the physiology of germination of Solanum lycocarpum, an important species native to the Brazilian Cerrado, with two species with endospermic...

journal_title：Annals of botany

authors： Pinto LV,Da Silva EA,Davide AC,De Jesus VA,Toorop PE,Hilhorst HW

更新日期：2007-12-01 00:00:00

abstract：Background and Aims:The division of resource investment between male and female functions is poorly known for land plants other than angiosperms. The ancient lycophyte genus Selaginella is similar in some ways to angiosperms (in heterospory and in having sex allocation occur in the sporophyte generation, for example) b...

journal_title：Annals of botany

authors： Petersen KB,Burd M

更新日期：2018-02-12 00:00:00

abstract：BACKGROUND AND AIMS:Lessons from above-ground trait ecology and resource economics theory may not be directly translatable to below-ground traits due to differences in function, trade-offs and environmental constraints. Here we examine root functional traits within and across species along a fine-scale hydrological gra...

journal_title：Annals of botany

authors： Taseski GM,Keith DA,Dalrymple RL,Cornwell WK

更新日期：2020-09-23 00:00:00

abstract：:Water relations and photosynthetic characteristics of plants of Lycium nodosum grown under increasing water deficit (WD), saline spray (SS) or saline irrigation (SI) were studied. Plants of this perennial, deciduous shrub growing in the coastal thorn scrubs of Venezuela show succulent leaves which persist for approx. ...

journal_title：Annals of botany

authors： Tezara W,Martínez D,Rengifo E,Herrera A

更新日期：2003-12-01 00:00:00

abstract：BACKGROUND AND AIMS:Whole-genome duplication (WGD) events are considered important driving forces of diversification. At least 11 out of 52 Brassicaceae tribes had independent mesopolyploid WGDs followed by diploidization processes. However, the association between mesopolyploidy and subsequent diversification is equiv...

journal_title：Annals of botany

authors： Huang XC,German DA,Koch MA

更新日期：2020-01-08 00:00:00

abstract：BACKGROUND:The origin of new species and of new forms is one of the fundamental characteristics of evolution. However, the mechanisms that govern the diversity and disparity of lineages remain poorly understood. Particularly unclear are the reasons why some taxa are vastly more species-rich than others and the manner i...

journal_title：Annals of botany

authors： Melzer R,Theißen G

更新日期：2016-04-01 00:00:00

abstract：BACKGROUND AND AIMS:Leaf area of cotton seedlings (Gossypium hirsutum) can be reduced by as much as 50 % by early season thrips infestations, but it is well documented that plants can regain the difference in leaf area once infestation ceases. The processes involved in the recovery have not been identified. Hypotheses ...

journal_title：Annals of botany

authors： Lei TT,Wilson LJ

更新日期：2004-07-01 00:00:00