Adaptive Intrinsic Growth Rates: An Integration Across Taxa

The Quarterly Review of Biology, Journal Year: 1997, Volume and Issue: 72(2), P. 149 - 177

Published: June 1, 1997

The evolution of intrinsic growth rate has received less attention than other life history traits, and been studied differently in plants, homoiotherms, poikilotherms. benefits rapid are obvious, so the problem is to explain costs tradeoffs that cause organisms grow below their physiological maximum. Four prevailing themes emerge from literature: (1) slow adaptive for dealing with nutrient stress, (2) tradeoff between development limits species require mature function early life, (3) evolves when a minimum size must be reached quickly, such as sexual maturation or overwintering, (4) may evolve compensate slowed owing environmental conditions. Evidence each these detailed In addition, empirical evidence reviewed growth, including increased fluctuating asymmetry, reduced immune capacity, ability respond stress.

Language: Английский

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Coordination of carbon supply and plant growth

Plant Cell & Environment, Journal Year: 2007, Volume and Issue: 30(9), P. 1126 - 1149

Published: July 19, 2007

ABSTRACT Plants must achieve a balance between carbon assimilation, storage and growth, but little is known about how this achieved. We describe evidence for the existence of regulatory mechanisms that coordinate supply use, likely central role sugar signalling. propose both ‘acute’ ‘acclimatory’ responses to alterations in supply, latter tuning demand optimise capacity sustained growth. A full understanding these requires new, systems‐level approaches integrate information from transcriptomic, enzyme activity, metabolomic growth analyses. illustrate complexity acute acclimatory by consideration control starch synthesis degradation leaves. Finally, we consider may be linked importance linkages plant changing environment.

Language: Английский

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The interdependence of mechanisms underlying climate-driven vegetation mortality

Trends in Ecology & Evolution, Journal Year: 2011, Volume and Issue: 26(10), P. 523 - 532

Published: Aug. 2, 2011

Language: Английский

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Jasmonate Passes Muster: A Receptor and Targets for the Defense Hormone

Annual Review of Plant Biology, Journal Year: 2008, Volume and Issue: 60(1), P. 183 - 205

Published: Nov. 21, 2008

The oxylipin jasmonate (JA) regulates many aspects of growth, development, and environmental responses in plants, particularly defense against herbivores necrotrophic pathogens. Mutants Arabidopsis helped researchers define the biochemical pathway for synthesis jasmonoyl-isoleucine (JA-Ile), active form JA hormone, demonstrated that is required plant survival insect pathogen attacks fertility. Transcriptional profiling led to discovery JASMONATE ZIM-DOMAIN (JAZ) proteins, which are repressors signaling. JA-Ile relieves repression by promoting binding JAZ proteins F-box protein CORONATINE INSENSITIVE1 (COI1) their subsequent degradation ubiquitination/26S-proteasome pathway. Although we now have a much better understanding molecular mechanism action, questions remain. Experimental answers these will expand our knowledge signaling plants animals also provide new tools efforts improve crop protection reproductive performance.

Language: Английский

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Direct and ecological costs of resistance to herbivory

Trends in Ecology & Evolution, Journal Year: 2002, Volume and Issue: 17(6), P. 278 - 285

Published: June 1, 2002

Language: Английский

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