The structure and development of haustorial placentas in leptosporangiate ferns provide a clear-cut distinction between euphyllophytes and lycophytes.

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:Seeds of Grevillea linearifolia germinate following fire, and have seed-coat dormancy broken by smoke and heat shock. Smoke breaks seed coat dormancy in Emmenanthe penduliflora by altering the permeability of the seed coat to an internal germination inhibitor, which subsequently escapes. This model ...

journal_title：Annals of botany

authors： Briggs CL,Morris EC

更新日期：2008-04-01 00:00:00

abstract：BACKGROUND AND AIMS:Insufficient pollination is a function of quantity and quality of pollen receipt, and the relative contribution of each to pollen limitation may vary with intrinsic plant traits and extrinsic ecological properties. Community-level studies are essential to evaluate variation across species in quality...

journal_title：Annals of botany

authors： Alonso C,Navarro-Fernández CM,Arceo-Gómez G,Meindl GA,Parra-Tabla V,Ashman TL

更新日期：2013-11-01 00:00:00

abstract：BACKGROUND AND AIMS:Species in plant communities segregate along fine-scale hydrological gradients. Although this phenomenon is not unique to fynbos, this community regenerates after fire and therefore provides an opportunity to study the ecological genesis of hydrological niche segregation. METHODS:Following wildfire...

journal_title：Annals of botany

authors： Silvertown J,Araya YN,Linder HP,Gowing DJ

更新日期：2012-11-01 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：BACKGROUND AND AIMS:It is an enduring question as to the mechanisms leading to the high diversity and the processes producing endemics with unusual morphologies in the Himalayan alpine region. In the present study, the phylogenetic relationships and origins of three such endemic genera were analysed, Dolomiaea, Diplazo...

journal_title：Annals of botany

authors： Wang YJ,Liu JQ,Miehe G

更新日期：2007-02-01 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：BACKGROUND AND AIMS:Although mangroves have been extensively studied, little is known about their ecological wood anatomy. This investigation examined the potential use of vessel density as a proxy for soil water salinity in the mangrove species Rhizophora mucronata (Rhizophoraceae) from Kenya. METHODS:In a time-stand...

journal_title：Annals of botany

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

更新日期：2006-12-01 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：:Columella cells of seedlings of Zea mays L. cv. Bear Hybrid grown in the microgravity of orbital flight allocate significantly larger relative-volumes to hyaloplasm and lipid bodies, and significantly smaller relative-volumes to dictyosomes, plastids, and starch than do columella cells of seedlings grown at 1 g. The...

journal_title：Annals of botany

authors： Moore R

更新日期：1990-01-01 00:00:00

abstract：AIMS:This Botanical Briefing reviews how the integration of palaeontology, geochemistry and developmental biology is providing a new mechanistic framework for interpreting the 40- to 50-million-year gap between the origination of vascular land plants and the advent of large (megaphyll) leaves, a long-standing puzzle in...

journal_title：Annals of botany

authors： Beerling DJ

更新日期：2005-09-01 00:00:00

abstract：BACKGROUND AND AIMS:The leaf anatomy and ultrastructure of Deschampsia antarctica (Poaceae) plants growing in three different habitats (a dry site in the Antarctic tundra, a wet site in a zone exposed to sea spray and a greenhouse) were investigated. The ultrastructure of the leaves of D. antarctica has not been studie...

journal_title：Annals of botany

authors： Gielwanowska I,Szczuka E,Bednara J,Górecki R

更新日期：2005-11-01 00:00:00

abstract：BACKGROUND AND AIMS:Brachypodium distachyon (Brachypodium) is a model system for studying cereal, bioenergy, forage and turf grasses. The genetic and evolutionary basis of the adaptation of this wild grass species to drought stress is largely unknown. Peroxidase (POD) may play a role in plant drought tolerance, but whe...

journal_title：Annals of botany

authors： Luo N,Yu X,Nie G,Liu J,Jiang Y

更新日期：2016-08-01 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: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:Seeds of epiphytes must land on branches with suitable substrates and microclimates to germinate and for the resulting seedlings to survive. It is important to understand the fate of seeds and seedlings in order to model populations, but this is often neglected when only established plants are inclu...

journal_title：Annals of botany

authors： Winkler M,Hülber K,Hietz P

更新日期：2005-05-01 00:00:00

abstract：BACKGROUND AND AIMS:The mangrove Rhizophora mucronata has previously been reported to lack annual growth rings, thus barring it from dendrochronological studies. In this study the reported absence of the growth rings was reconsidered and the periodic nature of light and dark brown layers visible on polished stem discs ...

journal_title：Annals of botany

authors： Verheyden A,Kairo JG,Beeckman H,Koedam N

更新日期：2004-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Molybdenum (Mo) is an essential trace element for higher plants. It has been shown that application of Mo enhances the cold resistance of winter wheat. In order to improve our understanding of the molecular mechanisms of cold resistance arising from application of Mo in winter wheat, investigations ...

journal_title：Annals of botany

authors： Sun X,Hu C,Tan Q,Liu J,Liu H

更新日期：2009-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Cypripedium flavum is a rare, endemic alpine slipper orchid of China, which is under threat from excessive collection and habitat changes. Conservation and re-introduction of C. flavum is restricted by lack of knowledge of the plant's photosynthesis and how that affects reproductive success. The hyp...

journal_title：Annals of botany

authors： Zhang S,Hu H,Zhou Z,Xu K,Yan N,Li S

更新日期：2005-07-01 00:00:00

abstract：Background and Aims:The nitrogen (N) to phosphorus (P) ratio (N:P) has been widely used as a threshold for identifying nutrient limitations in terrestrial plants; however, the associated reliability has not been well assessed. Methods:The uncertainty of nutrient limitations caused by the N:P threshold was evaluated us...

journal_title：Annals of botany

authors： Yan Z,Tian D,Han W,Tang Z,Fang J

更新日期：2017-11-28 00:00:00

abstract：BACKGROUND AND AIMS:The regrowth dynamics after defoliation of the invasive grass Calamagrostis epigejos were studied. As nitrogen (N) reserves have been shown to play an important role during plant regrowth, the identity, location and relative importance for regrowth of N stores were determined in this rhizomatous gra...

journal_title：Annals of botany

authors： Kavanová M,Gloser V

更新日期：2005-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Grapevine (Vitis spp.) cold hardiness varies dynamically throughout the dormant season, primarily in response to changes in temperature. The development and possible uses of a discrete-dynamic model of bud cold hardiness for three Vitis genotypes are described. METHODS:Iterative methods were used t...

journal_title：Annals of botany

authors： Ferguson JC,Tarara JM,Mills LJ,Grove GG,Keller M

更新日期：2011-03-01 00:00:00

abstract：BACKGROUND AND AIMS:As angiosperms became one of the megadiverse groups of macroscopic eukaryotes, they forged modern ecosystems and promoted the evolution of extant terrestrial biota. Unequal distribution of species among lineages suggests that diversification, the process that ultimately determines species richness, ...

journal_title：Annals of botany

authors： Magallón S,Sánchez-Reyes LL,Gómez-Acevedo SL

更新日期：2019-02-15 00:00:00

abstract：BACKGROUND:Low phosphorus (P) availability is a major constraint to soybean growth and production. Developing P-efficient soybean varieties that can efficiently utilize native P and added P in the soils would be a sustainable and economical approach to soybean production. SCOPE:This review summarizes the possible mech...

journal_title：Annals of botany

authors： Wang X,Yan X,Liao H

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Gossypium is an economically important, globally distributed taxon comprising more than 50 species. DNA content estimates from about half of the species indicate over a 3-fold variation exists. However, the nine DNA content estimates for G. hirsutum reveal over a 2-fold difference for this species a...

journal_title：Annals of botany

authors： Hendrix B,Stewart JM

更新日期：2005-04-01 00:00:00

abstract：BACKGROUND AND AIMS:The genus Olea (Oleaceae) includes approx. 40 taxa of evergreen shrubs and trees classified in three subgenera, Olea, Paniculatae and Tetrapilus, the first of which has two sections (Olea and Ligustroides). Olive trees (the O. europaea complex) have been the subject of intensive research, whereas li...

journal_title：Annals of botany

authors： Besnard G,Rubio de Casas R,Christin PA,Vargas P

更新日期：2009-07-01 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:Helichrysum bracteatum is called an 'eternal flower' and has large, coloured, scarious bracts. These maintain their aesthetic value without wilting or discoloration for many years. There have been no research studies of cell death or cell morphology of the scarious bract, and hence the aim of this w...

journal_title：Annals of botany

authors： Nishikawa K,Ito H,Awano T,Hosokawa M,Yazawa S

更新日期：2008-07-01 00:00:00

abstract：BACKGROUND:Clonal plants spread laterally by spacers between their ramets (shoot-root units); these spacers can transport and store resources. While much is known about how clonality promotes plant fitness, we know little about how different clonal plants influence ecosystem functions related to carbon, nutrient and wa...

journal_title：Annals of botany

authors： Cornelissen JH,Song YB,Yu FH,Dong M

更新日期：2014-08-01 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