Plant nitrogen availability and crosstalk with phytohormones signallings and their biotechnology breeding application in crops

Xing, Jiapeng; Cao, Xiaocong; Zhang, Mingcai; Zhang, Juan; Wan, Xiangyuan

doi:10.1111/pbi.13971

Cited by 24 publications

(8 citation statements)

References 177 publications

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“…

and

are absorbed and converted by the nitrate peptide transporter family/transporters (NPF/NRTs) protein family and ammonium transporters (AMTs) protein family in plants, respectively. Most of

is transported to ammonium nitrogen by NR and NiR in plants, which is further assimilated to organic form by GS/GOAT for the biosynthesis of nitrogenous compounds in plants ( Xing et al., 2022 ). Nhd1 can directly bind to the promoters of OsAMT1.3 and OsNRT2.4 , activating their expression and regulating the uptake and partitioning of

and

in rice, thus affecting the uptake and utilization of N in rice ( Li et al., 2022b ).…”

Section: Discussionmentioning

confidence: 99%

Physiological analysis reveals the mechanism of accelerated growth recovery for rice seedlings by nitrogen application after low temperature stress

Wang

Zhong²,

Fu³

et al. 2023

Front. Plant Sci.

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Low temperature and overcast rain are harmful to directly seeding early rice, it can hinder rice growth and lower rice biomass during the seedling stage, which in turn lowers rice yield. Farmers usually use N to help rice recuperate after stress and minimize losses. However, the effect of N application on the growth recovery for rice seedlings after such low temperature stress and its associated physiological changes remain unclearly. Two temperature settings and four post-stress N application levels were used in a bucket experiment to compare B116 (strong growth recovery after stress) with B144 (weak growth recovery). The results showed that the stress (average daily temperature at 12°C for 4 days) inhibited the growth of rice seedlings. Compared to the zero N group, the N application group’s seedling height, fresh weight and dry weight significantly increased after 12 days. In particular, the increases in all three growth indicators were relatively higher than that of N application at normal temperature, indicating the importance of N application to rice seedlings after low temperature stress. The antioxidant enzyme activity of rice seedlings increased significantly after N application, which reduced the damaging effect of ROS (reactive oxygen species) to rice seedlings. At the same time, the soluble protein content of seedlings showed a slow decrease, while the H2O2 and MDA (malondialdehyde) content decreased significantly. Nitrogen could also promote nitrogen uptake and utilization by increasing the expression of genes related to NH4+ and NO3− uptake and transport, as well as improving the activity of NR (nitrate reductase) and GS (glutamine synthetase) in rice. N could affect GA3 (gibberellin A3) and ABA (abscisic acid) levels by regulating the anabolism of GA3 and ABA. The N application group maintained high ABA levels as well as low GA3 levels from day 0 to day 6, and high GA3 levels as well as low ABA levels from day 6 to day 12. The two rice varieties showed obvious characteristics of accelerated growth recovery and positive physiological changes by nitrogen application after stress, while B116 generally showed more obvious growth recovery and stronger growth-related physiological reaction than that of B144. The N application of 40 kg hm-2 was more conducive to the rapid recovery of rice growth after stress. The above results indicated that appropriate N application promoted rice seedling growth recovery after low temperature stress mainly by increasing the activities of antioxidant enzymes and nitrogen metabolizing enzymes as well as regulating the levels of GA3 and ABA. The results of this study will provide a reference for the regulation of N on the recovery of rice seedling growth after low temperature and weak light stress.

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“…

and

are absorbed and converted by the nitrate peptide transporter family/transporters (NPF/NRTs) protein family and ammonium transporters (AMTs) protein family in plants, respectively. Most of

and

in rice, thus affecting the uptake and utilization of N in rice ( Li et al., 2022b ).…”

Section: Discussionmentioning

confidence: 99%

Physiological analysis reveals the mechanism of accelerated growth recovery for rice seedlings by nitrogen application after low temperature stress

Wang

Zhong²,

Fu³

et al. 2023

Front. Plant Sci.

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“…Among the 18 DEGs obtained from leaf transcriptome, 12 and 3 genes were down‐ and up‐regulated by low N (0.04 or 0.1 m m NO 3 − ) in all four sets of leaf transcriptome data, respectively (Figure 3d; Table S8). It is well known that phytohormones play essential roles in response to N availability (Xing et al., 2023). We found that ZmCKX1 0 ( Zm00001eb040280 ) encoding cytokinin dehydrogenase and an auxin‐responsive gene, ZmIAA20 ( Zm00001eb213730 ) were located in 195–213.2 Mb and 4.4–39.3 Mb hotspots on chromosomes 1 and 5, respectively (Figure 3e; Table S9).…”

Section: Resultsmentioning

confidence: 99%

Mining genic resources regulating nitrogen‐use efficiency based on integrative biological analyses and their breeding applications in maize and other crops

Xing,

Zhang,

Wang

et al. 2023

The Plant Journal

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SUMMARYNitrogen (N) is an essential factor for limiting crop yields, and cultivation of crops with low nitrogen‐use efficiency (NUE) exhibits increasing environmental and ecological risks. Hence, it is crucial to mine valuable NUE improvement genes, which is very important to develop and breed new crop varieties with high NUE in sustainable agriculture system. Quantitative trait locus (QTL) and genome‐wide association study (GWAS) analysis are the most common methods for dissecting genetic variations underlying complex traits. In addition, with the advancement of biotechnology, multi‐omics technologies can be used to accelerate the process of exploring genetic variations. In this study, we integrate the substantial data of QTLs, quantitative trait nucleotides (QTNs) from GWAS, and multi‐omics data including transcriptome, proteome, and metabolome and further analyze their interactions to predict some NUE‐related candidate genes. We also provide the genic resources for NUE improvement among maize, rice, wheat, and sorghum by homologous alignment and collinearity analysis. Furthermore, we propose to utilize the knowledge gained from classical cases to provide the frameworks for improving NUE and breeding N‐efficient varieties through integrated genomics, systems biology, and modern breeding technologies.

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“…Plant roots have evolved different systems for nitrogen uptake. Auxin, CTK, ABA, ETH, GA, BR, and JA can regulate NO3− and NH4+ uptake by regulating the transcript levels or transport activities of the NPF/NRT1, NRT2, and AMTs families in various plants [ 91 ]. In addition, JA can also mediate the expression of OsWRKY28 to enhance rice root elongation and phosphate absorption [ 92 ].…”

Section: Myc2 Is Involved In the Regulation Of Plant Growth And Devel...mentioning

confidence: 99%

MYC2: A Master Switch for Plant Physiological Processes and Specialized Metabolite Synthesis

Luo

Wang

Qiu

et al. 2023

IJMS

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The jasmonic acid (JA) signaling pathway plays important roles in plant defenses, development, and the synthesis of specialized metabolites synthesis. Transcription factor MYC2 is a major regulator of the JA signaling pathway and is involved in the regulation of plant physiological processes and specialized metabolite synthesis. Based on our understanding of the mechanism underlying the regulation of specialized metabolite synthesis in plants by the transcription factor MYC2, the use of synthetic biology approaches to design MYC2-driven chassis cells for the synthesis of specialized metabolites with high medicinal value, such as paclitaxel, vincristine, and artemisinin, seems to be a promising strategy. In this review, the regulatory role of MYC2 in JA signal transduction of plants to biotic and abiotic stresses, plant growth, development and specialized metabolite synthesis is described in detail, which will provide valuable reference for the use of MYC2 molecular switches to regulate plant specialized metabolite biosynthesis.

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Plant nitrogen availability and crosstalk with phytohormones signallings and their biotechnology breeding application in crops

Cited by 24 publications

References 177 publications

Physiological analysis reveals the mechanism of accelerated growth recovery for rice seedlings by nitrogen application after low temperature stress

Physiological analysis reveals the mechanism of accelerated growth recovery for rice seedlings by nitrogen application after low temperature stress

Mining genic resources regulating nitrogen‐use efficiency based on integrative biological analyses and their breeding applications in maize and other crops

MYC2: A Master Switch for Plant Physiological Processes and Specialized Metabolite Synthesis

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