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Identification and characterization of contrasting sunflower genotypes to early leaf senescence process combining molecular and physiological studies ( Helianthus annuus L.)
(Elsevier Ireland, 2016-09)
Leaf senescence is a complex mechanism ruled by multiple genetic and environmental variables that affect crop yields. It is the last stage in leaf development, is characterized by an active decline in photosynthetic rate, ...
Leaf Senescence: The Chloroplast Connection Comes of Age
(Multidisciplinary Digital Publishing Institute, 2019-11)
Leaf senescence is a developmental process critical for plant fitness, which involves genetically controlled cell death and ordered disassembly of macromolecules for reallocating nutrients to juvenile and reproductive ...
Network and biosignature analysis for the integration of transcriptomic and metabolomic data to characterize leaf senescence process in sunflower
(2016)
In recent years, high throughput technologies have led to an increase of datasets from omics disciplines allowing the understanding of the complex regulatory networks associated with biological processes.
Leaf senescence ...
In vivo inhibition of cysteine proteases provides evidence for the involvement of ‘senescence-associated vacuoles’ in chloroplast protein degradation during dark-induced senescence of tobacco leaves
(Oxford University Press, 2013-07)
Breakdown of leaf proteins, particularly chloroplast proteins, is a massive process in senescing leaves. In spite of its importance in internal N recycling, the mechanism(s) and the enzymes involved are largely unknown. ...
Potassium Fertilization of Eucalyptus in an Entisol in Low-Elevation Cerrado
(Soc Brasileira De Ciencia Do Solo, 2019-01-01)
Potassium (K) is one of the most highly accumulating nutrients in Eucalyptus and, consequently, is heavily exported by the harvesting of wood. Moreover, its availability in the soil in most Brazilian plantation areas is ...
Maize senescence under contrasting source-sink ratios during the grain filling period
(Pergamon-Elsevier Science Ltd, 2020-12)
Grain growth and leaf senescence are the main processes during post-silking in maize. An unanswered question is how changes in sink strength (the number of grains to be filled) affect leaf senescence. We studied the effect ...
Exploring gene networks in two sunflower lines with contrasting leaf senescence phenotype using a system biology approach
(BioMed Central, 2019-10-24)
Background: Leaf senescence is a complex process, controlled by multiple genetic and environmental variables. In sunflower, leaf senescence is triggered abruptly following anthesis thereby limiting the capacity of plants ...
Carbon assimilation, leaf area dynamics, and grain yield in contemporary earlier- and later-senescing maize hybrids
(Elsevier Science, 2014-05)
Maize breeding during the past 50 years has been associated with a delay of leaf senescence, but it is not clear whether this trait is likewise associated with higher grain yield in modern hybrids. Post-silking growth, ...
Sodium Chloride-Induced leaf senescence in Hydrocotyle bonariensis Lam. and Foeniculum vulgare L.
(Instituto de Tecnologia do Paraná - Tecpar, 1999)