Showing papers in "Trends in Plant Science in 2004"

TL;DR: In Arabidopsis, a network of at least 152 genes is involved in managing the level of ROS, and this network is highly dynamic and redundant, and encodes ROS-scavenging and ROS-producing proteins.

TL;DR: The significance of Hsps and chaperones in abiotic stress responses in plants is summarized, and the co-operation among their different classes and their interactions with other stress-induced components are discussed.

TL;DR: Evidence from the exploitation of Arabidopsis functional genomic tools points towards a new possible role of GABA as a signal molecule and provides further insights into the role of the GABA metabolic pathway in response to stress and carbon:nitrogen metabolism.

TL;DR: Invertases, alone or in combination with plant hormones, can regulate many aspects of the growth and development of plants from gene expression to long-distance nutrient allocation and are involved in regulating carbohydrate partitioning, developmental processes, hormone responses and biotic and abiotic interactions.

TL;DR: It is argued that an improved understanding of the transition between nitrogen assimilation and nitrogen recycling will be important in applying this technology to increasing crop yields and the need to combine genetic and transgenic approaches to make significant improvements in NUE is emphasized.

TL;DR: Increasing evidence suggests that root exudates might initiate and manipulate biological and physical interactions between roots and soil organisms, and thus play an active role in root-root and root-microbe communication.

TL;DR: The current understanding implicates peroxidases as key players during the whole life cycle of a plant, and particularly in cell wall modifications, in roles that can be antagonistic depending on the developmental stage.

TL;DR: This work proposes community-based efforts to define common criteria and to initiate concerted actions directed towards the release of standard reference materials, construction of consolidated metabolite libraries, and development of metabolite-specific data-management systems.

TL;DR: A database analysis of Arabidopsis reveals PP2C to be the largest protein phosphatase family in plants, with 76 members, displaying high complexity, and greatly outnumbering PP2Cs in other eukaryotes.

TL;DR: All fungi invading plant foliage have an asymptomatic period in their life cycle that varies from an imperceptibly short period to a lifetime, and questions are how genetic diversity of the fungus and phenotypic plasticity in fungal life history traits are answered.

TL;DR: Genes encoding dual-function plant antifreeze proteins are excellent models for use in evolutionary studies to determine how genes acquire new expression patterns and how proteins acquire new activities.

TL;DR: The high degree of structural complexity of plant cell wall polysaccharides has led to suggestions that some components might function as latent signal molecules that are released during pathogen infections and elicit defensive responses by the plant.

TL;DR: The candidate gene based-association approach has several important advantages for complex trait dissection in many coniferous forest tree species, including random mating and unstructured populations, adequate levels of nucleotide diversity, rapid decay of linkage disequilibrium, and precise evaluation of phenotype from clonal or progeny testing.

TL;DR: How the spectacular advances in plant genomics and metabolite profiling offer unprecedented possibilities to explore the extraordinary complexity of the plant biochemical capacity is discussed.

TL;DR: Strong similarities exist between nonhost and gene-for-gene resistance responses but it is still not clear if the same mechanism is involved in producing these resistance responses.

TL;DR: Different interactions between plant semiochemicals and insect pheromones are reviewed, paying attention to those that can result in the development of more efficient and reliable programs for pest control.

TL;DR: Non-specific leaf storage of less volatile compounds smooths the emission responses to fluctuating environmental conditions, and diffusion through stomata leads to conspicuous emission bursts after stomatal opening and modifications of diurnal emission time courses.

TL;DR: Predictions arising from bioinformatics fit well with recent data on Group 3 proteins, which potentially form cytoskeletal filaments, and suggest experimentally testable functions for these and other LEA protein groups.

TL;DR: It is proposed that the magnitude and the duration of the signaling can provide tolerance of oxygen deficiency through management of carbohydrate consumption and avoidance of oxidative stress.

TL;DR: The finding that arsenic is sequestered in iron plaque on root surfaces in plants, regulated by phosphorus status, and that there is considerable varietal variation in arsenic sequestration and subsequently plant uptake offers a hope for breeding rice for the new arsenic disaster in South-East Asia.

TL;DR: A conceptual framework of four functional levels (plant cellular interspace, leaf boundary layer, ecosystem and atmosphere) of inducible VOCs is proposed to aid understanding of the evolutionary role of in Ducible plant volatiles.

TL;DR: It is argued that chloroplasts need two types of flexible mechanisms: one for modulating the output ratio of ATP:NADPH, which involves cyclic electron flux around photosystem I; and another for changing the regulatory sensitivity of the light-harvesting antenna to electron (and proton) flow.

TL;DR: In this article, the authors highlight key elements required to achieve success in developing crop cultivars for increased yield and highlight the difficulty in translating research at the basic level into improvements in crop yield.

TL;DR: Recently, several specific root mutants and root-specific genes have been identified and characterized in maize and rice and indicate that the formation of primary-, seminal-, crown- and lateral roots is regulated by alternative root-type-specific pathways.

TL;DR: Recent characterization of hormonal and environmental signal transduction components active in tomato fruit ripening show conservation of signaling components yet novel gene family size and expression motifs that might facilitate complete and timely manifestation of ripening phenotypes.

TL;DR: How the genome sequence and transformability of poplar, together with its high levels of genetic and ecological diversity, are enabling new insights into the genetic programs controlling ontogeny, ecological adaptation and environmental physiology of trees is discussed.

TL;DR: Enzymatic studies on the GDP-mannose- 3',5'-epimerase and L-galactono-1,4-lactone dehydrogenase suggest that they are important regulatory steps for L-ascorbic acid biosynthesis.

TL;DR: Current research focuses on the initial molecular events that sense, transmit and integrate information about external and internal P(i) status and initial insight into the coordination of P( i) deficiency responses at the cellular and molecular level.

TL;DR: This technology can be used to engineer advanced phytoremediators, increasing their ability to pump heavy metals into a safe compartment while requiring only a small amount of transporters rather than a large amount of chelating peptide material.

TL;DR: The next steps towards understanding stress biology at the systems level are reconstructing the network and then verifying the roles these transcription factors play in the network.