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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Metabolic Regulation and Development of Energy Cane Setts upon Auxin Stimulus

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Author(s):
Cunha, Camila P. [1, 2] ; de Abreu, Luis Guilherme F. [1, 2] ; Grassi, Maria Carolina B. [2] ; Aricetti, Juliana A. [1] ; Machado, Eduardo C. [3] ; Pereira, Goncalo A. G. [2] ; Oliveira, Juliana V. C. [1]
Total Authors: 7
Affiliation:
[1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Biorenewables Natl Lab LNBR, BR-13083970 Campinas - Brazil
[2] Univ Estadual Campinas, Inst Biol, Dept Genet Evolut Microbiol & Immunol, Genom & BioEnergy Lab, Unicamp, BR-13083864 Campinas - Brazil
[3] Agron Inst Campinas, Ctr Ecophysiol & Biophys, BR-13001970 Campinas - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Plant and Cell Physiology; v. 61, n. 3, p. 606-615, MAR 2020.
Web of Science Citations: 1
Abstract

Energy cane is a bioenergy crop with an outstanding ability to bud sprouting and increasing yield in ratoon cycles even in marginal lands. Bud fate control is key to biomass production and crop profits due to vegetative propagation and tiller dependency, as well as phenotype plasticity to withstand harsh environmental conditions. During the establishment stage (plant cane cycle), energy cane has a tendency for low root:shoot ratio, which might hamper the ability to cope with stress. Auxin is known to modulate bud sprouting and stimulate rooting in sugarcane. Hence, we treated a slow and a fast bud sprouting energy cane cultivars with auxin or controls (with and without water soaking) for 6 h prior to planting and evaluate plant growth parameters and metabolic profiling using two techniques (gas chromatography with time-of-flight mass spectrometer and nuclear magnetic resonance) to characterize the effect and identify metabolite markers associated with bud inhibition and outgrowth. Auxin inhibited bud burst and promote rooting in setts changing the root:shoot ratio of plantlets. Metabolome allowed the identification of lactate, succinate and aspartate family amino acids as involved in bud fate control through the potential modulation of oxygen and energy status. Investigating environmental and biochemical factors that regulate bud fate can be incremental to other monocot species. Our study provides new insights into bud quiescence and outgrowth in cane hybrids, with the potential to leverage our understanding of yield-related traits, crop establishment and adaptation to global climate change. (AU)

FAPESP's process: 18/10315-2 - Identification of new regulators of the process of sprouting of sugar cane and energy cane
Grantee:Luís Guilherme Furlan de Abreu
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)