Genetic Diversity and the Survival of Populations Tập 2 Số 4 - Trang 379-395 - 2000
G. Booy, Rob J. J. Hendriks, M.J.M. Smulders, J.M. van Groenendael, B. Vosman
Abstract:In this comprehensive review, a range of factors is considered that may influence the significance of genetic diversity for the survival of a population. Genetic variation is essential for the adaptability of a population in which quantitatively inherited, fitness‐related traits are crucial. Therefore, the relationship between genetic diversity and fitness s...... hiện toàn bộ
Effect of Ammonium and Nitrate Nutrition On Some Physiological Processes in Higher Plants ‐ Growth, Photosynthesis, Photorespiration, and Water Relations Tập 9 Số 1 - Trang 21-29 - 2007
Shiwei Guo, Yi Zhou, Qirong Shen, Fan Zhang
Abstract: Ammonium and nitrate as different forms of nitrogen nutrients impact differently on some physiological and biochemical processes in higher plants. Compared to nitrate, ammonium results in small root and small leaf area, which may contribute to a low carbon gain, and an inhibition on growth. On the other hand, due to (photo)energy saving, a higher CO... hiện toàn bộ
Plant metallothioneins – metal chelators with ROS scavenging activity? Tập 13 Số 2 - Trang 225-232 - 2011
Viivi H. Hassinen, Arja Tervahauta, Henk Schat, Sirpa Kärenlampi
AbstractMetallothioneins (MTs) are ubiquitous cysteine‐rich proteins present in plants, animals, fungi and cyanobacteria. In plants, MTs are suggested to be involved in metal tolerance or homeostasis, as they are able to bind metal ions through the thiol groups of their cysteine residues. Recent reports show that MTs are also involved in the scavenging of reactive ...... hiện toàn bộ
Effects of elevated CO2 on grain yield and quality of wheat: results from a 3‐year free‐air CO2 enrichment experiment Tập 11 Số s1 - Trang 60-69 - 2009
Petra Högy, Herbert Wieser, Peter Koehler, Klaus Schwadorf, Jörn Breuer, Jürgen Franzaring, Russell B. Muntifering, Andreas Fangmeier
AbstractSpring wheat (Triticum aestivum L. cv. TRISO) was grown for three consecutive seasons in a free‐air carbon dioxide (CO2) enrichment (FACE) field experiment in order to examine the effects on crop yield and grain quality. CO2 enrichment promoted aboveground biomass (+11.8%) and grain yield ...... hiện toàn bộ
Characterization of Cysteine‐Degrading and H2S‐Releasing Enzymes of Higher Plants ‐ From the Field to the Test Tube and Back Tập 9 Số 5 - Trang 582-588 - 2007
Jutta Papenbrock, Anja Riemenschneider, Anja Kamp, Heide N. Schulz‐Vogt, A. Schmidt
Abstract: Due to the clean air acts and subsequent reduction of emission of gaseous sulfur compounds sulfur deficiency became one of the major nutrient disorders in Northern Europe. Typical sulfur deficiency symptoms can be diagnosed. Especially plants of the Cruciferae family are more susceptible against pathogen attack. Sulfur fertilization can in part recover or ...... hiện toàn bộ
The role of abscisic acid and auxin in the response of poplar to abiotic stress Tập 12 Số 2 - Trang 242-258 - 2010
Jennifer Popko, Robert Hänsch, Ralf R. Mendel, Andrea Polle, Thomas Teichmann
AbstractThe plant hormones auxin and abscisic acid may at first sight appear to be a conflicting pair of plant regulators. Abscisic acid content increases during stress and protects plant water status. The content of free auxin in the developing xylem of poplar declines during stress, while auxin conjugates increase. This indicates that specific down‐regulation of ...... hiện toàn bộ
Temporal variation of competition and facilitation in mixed species forests inCentralEurope Tập 16 Số 1 - Trang 166-176 - 2014
Miren del Rı́o, Gerhard Schütze, Hans Pretzsch
AbstractFacilitation, reduced competition or increased competition can arise in mixed stands and become essential to the performance of these stands when compared to pure stands. Facilitation and over‐yielding are widely held to prevail on poor sites, whereas neutral interactions or competition, leading to under‐yielding of mixedversuspur...... hiện toàn bộ