Showing papers in "Annals of Botany in 2008"

TL;DR: It is suggested that there is a limited capacity for photorespiration or the Mehler reaction to act as significant alternative electron sinks under water stress in C(4) photosynthesis.

TL;DR: Thlaspi caerulescens is a fascinating and useful model system not only for studying metal hyperaccumulation, but also for better understanding micronutrient homeostasis and nutrition.

TL;DR: In this article, a number of tools for the detection and analysis of core-shell magnetic nanoparticles introduced into plants and their concentration in selected plant tissues by magnetic field gradients are presented.

TL;DR: There was no discernable pattern in the direction of genome size change with age of polyploids, although with increasing age the amount of genome sizes change increased.

TL;DR: A critical evaluation of recent progress in unravelling mechanisms for modifying plant growth responses to drought finds that recent reports contradict the widespread conception that root-derived abscisic acid is necessarily involved in signalling for stomatal and shoot-growth responses to soil water deficits.

TL;DR: Submergence-responsive miRNAs are involved in the regulation of metabolic, physiological and morphological adaptations of maize roots at the post-transcriptional level and contain the cis-acting element, essential for the anaerobic response or hormone induction.

TL;DR: The results show that genome size is a strong predictor of phenotypic traits at the cellular level (guard cell length and epidermal cell area had significant positive relationships with genome size), and the predictive power of genome size generally diminishes at higher phenotypesic scales.

TL;DR: It is proposed that rDNA epigenetic expression patterns established even in F(1) hybrids have a material influence on the likely patterns of divergence of rDNA.

TL;DR: The present study indicates the high potential of general quantitative characters of the genome for understanding the long-term processes of genome evolution, testing evolutionary hypotheses and their usefulness for large-scale genomic projects.

TL;DR: The results suggest that the invasiveness of Alternanthera may be closely related to clonal integration, and contributed little to Alternanthersa's competitive ability, but was very important for Alternanhera to explore open space.

TL;DR: It is proposed that, during cellulose crystallization, a part of the xyloglucan is trapped inside the crystal, inducing longitudinal tensile stress within it; another part of it is accessible and present between the G-layer and the outer wall layers.

TL;DR: Aside from their intrinsic enigmatic properties, B chromosomes make useful experimental tools to study genome organization and have opportunities to use them to modulate the frequency and distribution of recombination, to diploidize allopolyploids, to study centromeres and to be developed as plant artificial chromosomes.

TL;DR: In this article, the authors tested the idea that silica can reduce digestibility by preventing the mechanical breakdown of chlorenchyma cells, and found that high-silica grasses released less chlorophyll after grinding and retained more after passing through the gut of locusts.

TL;DR: Brown seeds were non-dormant, whereas black seeds had non-deep Type 2 physiological dormancy (PD), andGermination percentage and rate of germination of brown seeds and of variously pretreated black seeds were significantly higher than those of non-pretreatedblack seeds.

TL;DR: The Ph1 locus has been defined to a cdk-like gene cluster related to Cdk2 in humans, a master checkpoint gene involved in the initiation of replication and required for early meiosis.

TL;DR: The results show that the temperature-dependent modifications in pectin content and their methyl esterification degree correlate with changes in tensile strength of a leaf tissue, and in this way affect leaf expansion ability and its resistance to freezing and to fungus pathogens.

TL;DR: The consequences of a reduced LMA for punch strength in shaded leaves was partially compensated for by a mechanically more efficient design, which, it is suggested, contributes importantly to resisting mechanical stress under carbon-limited conditions.

TL;DR: Based on correlations between foraging Precision and various plant morphological and ecophysiological traits, it is found that foraging precision forms part of the 'fast' suite of plant traits related to rapid growth rates and resource uptake rates.

TL;DR: The data suggest that cytoplasm and relationships between parental genomes are key factors in determining the direction, amount, timing and rate of genomic sequence variation that occurred during inter-generic allopolyploidization in triticale.

TL;DR: The role of the outer epidermal wall (OEW) in the control of stem elongation is described with special reference to the outer EEW, which forms a 'tensile skin' as mentioned in this paper.

TL;DR: It is concluded that if La or Ce have positive effects on corn and mungbean growth, they can only occur at solution concentrations below 0.2 microm, and the growth, root function and consequently the nutritional status of mung bean at concentrations >0.0 microm.

TL;DR: A positive relationship was observed between DNA C-value and cell cycle time for all species and for eudicots and monocots separately, regardless of the presence or absence of polyploid values, and the flexibility of DNA replication is explored.

TL;DR: Observations of pollen-tube growth and seed set following controlled pollinations demonstrated that plants of A. artemisiifolia possess a strong self-incompatibility mechanism, contrary to earlier reports and assumptions.

TL;DR: The results suggest that beneficial effects of shade can be eclipsed by reduced soil moisture during dry years, which are expected to be more frequent in the most likely climate change scenarios for the Mediterranean region.

TL;DR: The widespread occurrence of transglutaminases activity in all organs and cell compartments studied suggests a relevance for their still incompletely defined physiological roles.

TL;DR: This study provides the first evidence that maintaining rhizome connections helps plants to tolerate erosion in drylands with wind erosion in Inner Mongolia, China.

TL;DR: It is suggested that small-seeded species germinate only in comparatively moist microsites, such as small canopy gaps, which may reduce the risk of drought-induced mortality.

TL;DR: Plant morphogenesis is fundamentally a cellular process and the CellModeller software, through its underlying generic model, provides an advanced research tool to analyse coupled physical and biological morphogenetic mechanisms.

TL;DR: This study constitutes the first report for multiple polyploidy in olive tree relatives in north-west Africa and hypothesize that subsp.

TL;DR: These results are consistent with the notion that sink demand may limit source activity through a kinase-mediated sugar signalling mechanism that correlates to a decrease in source hexose concentrations, which, in turn, correlate with increased expression of genes involved in photosynthesis and metabolite transport.