Comparative transcriptome and physiological analysis unravel proso millet (Panicum miliaceum L.) source leaf adaptation to nitrogen deficiency with high nitrogen use efficiency

Liu, Chunjuan; Yuan, Yuhao; Li, Jiajia; Wang, Honglu; Ma, Qian; Zhou, Yufei; Liu, Chang; Gong, Xiangwei; Feng, Baili

doi:10.1016/j.envexpbot.2022.104891

Cited by 9 publications

(1 citation statement)

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“…Since the adaptive response of plants to N deprivation can be reflected by N starvation-responsive genes and metabolites, it is meaningful to conduct a comprehensive analysis of transcriptome and metabolome to clarify the metabolic and molecular mechanisms of plant adaptions to N starvation. Some researchers investigated N starvation-responsive genes in potato [ 15 ], wheat [ 16 ], Panicum miliaceum [ 17 ], rice [ 18 ], maize [ 19 ], and rapeseed [ 20 ]; and N starvation-responsive metabolites in Isatis indigotica [ 21 ], soybean [ 22 ], tea [ 9 ], and rapeseed [ 23 ]. Few researchers used a comprehensive analysis of transcriptome and metabolome to examine N starvation-responsive genes and metabolites in rice [ 24 ], soybean [ 25 ], poplar [ 26 ], barely [ 27 ], maize [ 14 ], apple [ 28 ], and Arabidopsis thaliana [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

An Integrated Analysis of Metabolome, Transcriptome, and Physiology Revealed the Molecular and Physiological Response of Citrus sinensis Roots to Prolonged Nitrogen Deficiency

Lai

Peng

Rao

et al. 2023

Plants

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Citrus sinensis seedlings were supplied with a nutrient solution containing 15 (control) or 0 (nitrogen (N) deficiency) mM N for 10 weeks. Extensive metabolic and gene reprogramming occurred in 0 mM N-treated roots (RN0) to cope with N deficiency, including: (a) enhancing the ability to keep phosphate homeostasis by elevating the abundances of metabolites containing phosphorus and the compartmentation of phosphate in plastids, and/or downregulating low-phosphate-inducible genes; (b) improving the ability to keep N homeostasis by lowering the levels of metabolites containing N but not phosphorus, upregulating N compound degradation, the root/shoot ratio, and the expression of genes involved in N uptake, and resulting in transitions from N-rich alkaloids to carbon (C)-rich phenylpropanoids and phenolic compounds (excluding indole alkaloids) and from N-rich amino acids to C-rich carbohydrates and organic acids; (c) upregulating the ability to maintain energy homeostasis by increasing energy production (tricarboxylic acid cycle, glycolysis/gluconeogenesis, oxidative phosphorylation, and ATP biosynthetic process) and decreasing energy utilization for amino acid and protein biosynthesis and new root building; (d) elevating the transmembrane transport of metabolites, thus enhancing the remobilization and recycling of useful compounds; and (e) activating protein processing in the endoplasmic reticulum. RN0 had a higher ability to detoxify reactive oxygen species and aldehydes, thus protecting RN0 against oxidative injury and delaying root senescence.

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