Next Article in Journal
Eggshell-Membrane-Derived Carbon Coated on Li2FeSiO4 Cathode Material for Li-Ion Batteries
Previous Article in Journal
New Criteria to Characterize the Waste Heat Recovery
Open AccessReview

The Senescence (Stay-Green)—An Important Trait to Exploit Crop Residuals for Bioenergy

1
KWS SAAT SE & Co.KGaA, Grimsehlstr. 31, 37574 Einbeck, Germany
2
3edata, I+D. Centro de Iniciativas Empresariales, Fundación CEL. O Palomar s/n, 27004 Lugo, Spain
3
School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana 141004, India
4
Instituto Nacional de Investigaciones Agropecuarias (INIAP), Quito 170315, Ecuador
5
Misión Biológica de Galicia (CSIC), Apartado 28, 36080 Pontevedra, Spain
*
Author to whom correspondence should be addressed.
Energies 2020, 13(4), 790; https://doi.org/10.3390/en13040790
Received: 5 December 2019 / Revised: 13 January 2020 / Accepted: 5 February 2020 / Published: 11 February 2020
(This article belongs to the Section Bio-Energy)
In this review, we present a comprehensive revisit of past research and advances developed on the stay-green (SG) paradigm. The study aims to provide an application-focused review of the SG phenotypes as crop residuals for bioenergy. Little is known about the SG trait as a germplasm enhancer resource for energy storage as a system for alternative energy. Initially described as a single locus recessive trait, SG was shortly after reported as a quantitative trait governed by complex physiological and metabolic networks including chlorophyll efficiency, nitrogen contents, nutrient remobilization and source-sink balance. Together with the fact that phenotyping efforts have improved rapidly in the last decade, new approaches based on sensing technologies have had an impact in SG identification. Since SG is linked to delayed senescence, we present a review of the term senescence applied to crop residuals and bioenergy. Firstly, we discuss the idiosyncrasy of senescence. Secondly, we present biological processes that determine the fate of senescence. Thirdly, we present the genetics underlying SG for crop-trait improvement in different crops. Further, this review explores the potential uses of senescence for bioenergy crops. Finally, we discuss how high-throughput phenotyping methods assist new technologies such as genomic selection in a cost-efficient manner. View Full-Text
Keywords: stay-green; senescence; bioenergy; breeding; high-throughput phenotyping; quantitative genetics; genetics; chlorophyll; maize and rice stay-green; senescence; bioenergy; breeding; high-throughput phenotyping; quantitative genetics; genetics; chlorophyll; maize and rice
Show Figures

Figure 1

MDPI and ACS Style

Munaiz, E.D.; Martínez, S.; Kumar, A.; Caicedo, M.; Ordás, B. The Senescence (Stay-Green)—An Important Trait to Exploit Crop Residuals for Bioenergy. Energies 2020, 13, 790.

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
Back to TopTop