Next Article in Journal
Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions
Previous Article in Journal
Efficient Protocol for the In Vitro Plantlet Production of Caper (Capparis orientalis Veill.) from the East Adriatic Coast
Open AccessArticle

Effect of Senescence Phenotypes and Nitrate Availability on Wheat Leaf Metabolome during Grain Filling

1
Max Planck Institute of Molecular Plant Physiology, 14424 Potsdam, Germany
2
NAIST-BS, Division of Biological Sciences, 8916-5, Takayama, Ikoma, Nara, 630-0912, Japan
3
Energy Plant Research Center, School of Life Sciences, Qilu Normal University, Jinan 250099, China
4
Rothamsted Research, Harpenden AL5 2JQ, UK
*
Author to whom correspondence should be addressed.
Agronomy 2019, 9(6), 305; https://doi.org/10.3390/agronomy9060305
Received: 26 April 2019 / Revised: 21 May 2019 / Accepted: 30 May 2019 / Published: 11 June 2019
The capacity for optimising grain yield depends largely on the timing of senescence and the processes underlying efficient remobilisation and cycling of nutrients from source tissues to the developing grain. This study describes how metabolism is adjusted during senescence in response to varying nitrogen application rates after anthesis. A comprehensive metabolite analysis was performed in field-grown Avalon/Cadenza using segregating doubled haploid wheat genotypes having contrasting traits relating to timing of the onset of senescence. Correlative matrices of metabolites and yield parameters determined the metabolic networks that underlie these phenotypes, and were helpful for identifying unique metabolites that are indicative of timing of senescence. They also revealed robust correlations between steady increases in hexose levels, a late senescence phenotype and high straw yield associated with low N fertiliser levels. Tryptophan, cis-aconitate, phosphate and 1-kestose demonstrated strong perturbations in response to nitrogen availability and progression towards developmental senescence. A comprehensive metabolic map of wheat leaf primary metabolites yielded a cumulative readout of processes that occur during developmental ripening and contribute to grain filling in plants with differential senescence timing. View Full-Text
Keywords: nitrogen/nutrient; chlorophyll contents; early and late senescence phenotype; metabolite; wheat leaf nitrogen/nutrient; chlorophyll contents; early and late senescence phenotype; metabolite; wheat leaf
Show Figures

Figure 1

  • Supplementary File 1:

    ZIP-Document (ZIP, 2570 KiB)

  • Externally hosted supplementary file 1
    Doi: 10.3389/fpls.2017.02048
    Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712589/
    Description: Supplemental Figure S1A and B which are listed in the supplemental of this manuscript was already published in https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712589/ In our manuscript we refer to this figure in the supplemental to present the reader with a exploratory overview of the varience in the data.
MDPI and ACS Style

Heyneke, E.; Watanabe, M.; Erban, A.; Duan, G.; Buchner, P.; Walther, D.; Kopka, J.; Hawkesford, M.J.; Hoefgen, R. Effect of Senescence Phenotypes and Nitrate Availability on Wheat Leaf Metabolome during Grain Filling. Agronomy 2019, 9, 305.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop