Assessing radiation dose limits for X-ray fluorescence microscopy analysis of plant specimens.

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：BACKGROUND AND AIMS:The co-occurring of evergreen and deciduous angiosperm trees in Asian tropical dry forests on karst substrates suggests the existence of different water-use strategies among species. In this study it is hypothesized that the co-occurring evergreen and deciduous trees differ in stem hydraulic traits ...

journal_title：Annals of botany

authors： Fu PL,Jiang YJ,Wang AY,Brodribb TJ,Zhang JL,Zhu SD,Cao KF

更新日期：2012-07-01 00:00:00

abstract：BACKGROUND AND AIMS:When green coffee is stored for a prolonged time the coffee quality decreases distinctively. Apart from well-known 'off-notes' that arise from undesired oxidations of lipids, a typical 'flattening' of the cup quality is detectable. In order to elucidate the biological causes for this phenomenon, dif...

journal_title：Annals of botany

authors： Selmar D,Bytof G,Knopp SE

更新日期：2008-01-01 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:Previous studies on grass leaf tensile properties (behaviour during mechanical stress) have focused on agricultural applications such as resistance to trampling and palatability; no investigations have directly addressed mechanical properties during water stress, and hence these are the subject of t...

journal_title：Annals of botany

authors： Balsamo RA,Willigen CV,Bauer AM,Farrant J

更新日期：2006-06-01 00:00:00

abstract：:This study describes the successive stages of development of branches from axillary buds in fully rooted plants of Trifolium repens grown in near optimal conditions, and the way in which this developmental pathway differs when nodal root formation is prevented as plants grow out from a rooted base. Cuttings of a singl...

journal_title：Annals of botany

authors： Thomas RG,Hay MJ,Newton PC

更新日期：2002-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Most genera of the neotropical Galipeinae (tribe Galipeeae, Rutoideae) exhibit several forms and degrees of fusion between the floral organs, including the union of petals into an apparently sympetalous corolla, the joining of the stamens among themselves and to the corolla, and the partial to compl...

journal_title：Annals of botany

authors： El Ottra JH,Pirani JR,Endress PK

更新日期：2013-05-01 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：Background and Aims:Rubus subgenus Rubus is a group of mostly apomictic and polyploid species with a complicated taxonomy and history of ongoing hybridization. The only polyploid series with prevailing sexuality is the series Glandulosi , although the apomictic series Discolores and Radula also retain a high degree of ...

journal_title：Annals of botany

authors： Šarhanová P,Sharbel TF,Sochor M,Vašut RJ,Dancák M,Trávnícek B

更新日期：2017-08-01 00:00:00

abstract：:The 'Oxalis tuberosa alliance' is a group of Andean Oxalis species allied to the Andean tuber crop O. tuberosa Molina (Oxalidaceae), commonly known as 'oca'. As part of a larger project studying the origins of polyploidy and domestication of cultivated oca, flow cytometry was used to survey DNA ploidy levels among Bol...

journal_title：Annals of botany

authors： Emshwiller E

更新日期：2002-06-01 00:00:00

abstract：Background and Aims:Within-plant spatial heterogeneity in the production of and demand for assimilates may have major implications for the formation of fruits. Spatial heterogeneity is related to organ age, but also to position on the plant. This study quantifies the variation in local carbohydrate availability for the...

journal_title：Annals of botany

authors： Gu S,Zhang L,Yan Z,van der Werf W,Evers JB

更新日期：2018-04-18 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:Pollinator specificity facilitates reproductive isolation among plants, and mechanisms that generate specificity influence species boundaries. Long-range volatile attractants, in combination with morphological co-adaptations, are generally regarded as being responsible for maintaining extreme host s...

journal_title：Annals of botany

authors： Wang G,Compton SG,Chen J

更新日期：2013-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Pollinator-limited seed-set in some terrestrial orchids is compensated for by the presence of long-lived flowers. This study tests the hypothesis that pollen from these insect-pollinated orchids should be desiccation tolerant and relatively long lived using four closely related UK terrestrial specie...

journal_title：Annals of botany

authors： Marks TR,Seaton PT,Pritchard HW

更新日期：2014-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Genome size is known to be correlated with a number of phenotypic traits associated with cell sizes and cell-division rates. Genome size was therefore used as a proxy for them in order to assess how common plant traits such as height, specific leaf area and seed size/number predict species regional ...

journal_title：Annals of botany

authors： Herben T,Suda J,Klimesová J,Mihulka S,Ríha P,Símová I

更新日期：2012-11-01 00:00:00

abstract：BACKGROUND AND AIMS:There are a number of disparate models predicting variation in plant chemical defences between species, and within a single species over space and time. These can give conflicting predictions. Here we review a number of these theories, before assessing their power to predict the spatial-temporal var...

journal_title：Annals of botany

authors： Martinez-Swatson K,Kjøller R,Cozzi F,Simonsen HT,Rønsted N,Barnes C

更新日期：2020-04-25 00:00:00

abstract：BACKGROUND AND AIMS:The interspecific allometry of maximum plant height (Hmax) with respect to maximum basal stem diameter (Dmax) has been studied for leptocaulis dicot and conifer tree species. In contrast, virtually nothing is known about the interspecific allometry of pachycaulis species. Here, the interspecific all...

journal_title：Annals of botany

authors： Niklas KJ,Cobb ED,Marler T

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND AND AIMS:Numerous studies have examined the effects of climatic factors on the distribution of C(3) and C(4) grasses in various regions throughout the world, but the role of seasonal fluctuations in temperature, precipitation and soil N availability in regulating growth and competition of these two functiona...

journal_title：Annals of botany

authors： Yuan Z,Liu W,Niu S,Wan S

更新日期：2007-10-01 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 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:The sedge genus Carex, the most diversified angiosperm genus of the northern temperate zone, is renowned for its holocentric chromosomes and karyotype variability. The genus exhibits high variation in chromosome numbers both among and within species. Despite the possibility that this chromosome evol...

journal_title：Annals of botany

authors： Escudero M,Weber JA,Hipp AL

更新日期：2013-08-01 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

abstract：BACKGROUND AND AIMS:An investigation was carried out to determine whether stomatal closure in flooded tomato plants (Solanum lycopersicum) results from decreased leaf water potentials (psi(L)), decreased photosynthetic capacity and attendant increases in internal CO(2) (C(i)) or from losses of root function such as cyt...

journal_title：Annals of botany

authors： Else MA,Janowiak F,Atkinson CJ,Jackson MB

更新日期：2009-01-01 00:00:00

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:The reconstruction of biological processes and human activities during the last glacial cycle relies mainly on data from biological remains. Highly abundant tissues, such as wood, are candidates for a genetic analysis of past populations. While well-authenticated DNA has now been recovered from various fossi...

journal_title：Annals of botany

authors： Liepelt S,Sperisen C,Deguilloux MF,Petit RJ,Kissling R,Spencer M,de Beaulieu JL,Taberlet P,Gielly L,Ziegenhagen B

更新日期：2006-11-01 00:00:00

abstract：Background and Aims:Diurnal changes in solar position and intensity combined with the structural complexity of plant architecture result in highly variable and dynamic light patterns within the plant canopy. This affects productivity through the complex ways that photosynthesis responds to changes in light intensity. C...

journal_title：Annals of botany

authors： Retkute R,Townsend AJ,Murchie EH,Jensen OE,Preston SP

更新日期：2018-08-01 00:00:00

abstract：BACKGROUND AND AIMS:While pollinators may in general select for large, morphologically uniform floral phenotypes, drought stress has been proposed as a destabilizing force that may favour small flowers and/or promote floral variation within species. METHODS:The general validity of this concept was checked by surveying...

journal_title：Annals of botany

authors： Herrera J

更新日期：2009-05-01 00:00:00

abstract：BACKGROUND AND AIMS:According to the air-seeding hypothesis, embolism vulnerability in xylem elements is linked directly to bordered pit structure and functioning. To elucidate the adaptive potential of intervessel pits towards fluctuating environmental conditions, two mangrove species with a distinct ecological distri...

journal_title：Annals of botany

authors： Schmitz N,Jansen S,Verheyden A,Kairo JG,Beeckman H,Koedam N

更新日期：2007-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Recent biodiversity research has focused on ecosystem processes, but less is known about responses of populations of individual plant species to changing community diversity and implications of genetic variation within species. To address these issues, effects of plant community diversity on the per...

journal_title：Annals of botany

authors： Roscher C,Schumacher J,Weisser WW,Schulze ED

更新日期：2008-07-01 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