Download Growth and Defence in Plants: Resource Allocation at by R. Matyssek, Hans Schnyder, Wolfgang Oßwald, Dieter Ernst, PDF

By R. Matyssek, Hans Schnyder, Wolfgang Oßwald, Dieter Ernst, Jean Charles Munch, Hans Pretzsch

Plants use assets, i.e. carbon, meals, water and effort, both for progress or to guard themselves from biotic and abiotic stresses. This quantity offers a well timed realizing of source allocation and its legislation in vegetation, linking the molecular with biochemical and physiological-level approaches. Ecological eventualities coated contain rivals, pathogens, herbivores, mycorrhizae, soil microorganisms, carbon dioxide/ozone regimes, nitrogen and light-weight availabilities. The validity of the “Growth-Differentiation stability speculation” is tested and novel theoretical techniques and ways to modelling plant source allocation are mentioned. the implications awarded should be utilized in plant breeding and engineering, in addition to in resource-efficient stand administration in agriculture and forestry.

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Extra info for Growth and Defence in Plants: Resource Allocation at Multiple Scales

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Hence, differentiation implies that the functional transition between growth and defence is gradual. On such grounds, Fig. 1 schematically approximates the core of GDB, according to the extended view of Matyssek et al. (2005), in that increasing resource availability promotes gross primary productivity (GPP) towards a maximum level. In parallel, growth and defence-related metabolism respond in complementary ways to each other, in terms of a trade-off. This means, favoured defence at low resource availability at the expense of growth, but favoured growth at high availability when defence is low.

X Sandermann H, Matyssek R (2004) Scaling up from molecular to ecological processes. In: Sandermann H (ed) Molecular ecotoxicology of plants, vol 170, Ecological studies. Springer, Heidelberg, pp 207–226 Schloter M, Matyssek R (2009) Tuning growth versus defence – belowground interactions and plant resource allocation. Plant Soil 323:1–5 Schulze E-D (1982) Plant life forms and their carbon, water and nutrient relations. In: Lange OL, Nobel PS, Osmond CB, Ziegler H (eds) Physiological plant ecology II, vol 12B.

17 Fig. 2 Conceptual model visualizing whole-plant resource allocation. Arrows indicate major pathways in resource allocation between physiological demands within the plant and in exchange with the environment, as being under the control of environmental impact and molecular processes (see text for details; from Sandermann and Matyssek 2004) (van Dam and Heil 2011; Vannette and Hunter 2011). Ecological benefits counteracting trade-offs have been reported, as some kind of facilitation, from mycorrhizae in enhancing defence (Bonello et al.

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