ZxNPF7.3/NRT1.5 from the xerophyte Zygophyllum xanthoxylum modulates salt and drought tolerance by regulating NO3−, Na+ and K+ transport

Yuan, Jian-Zhen; Cui, Yan-Nong; Li, Xiaoting; Wang, Fang-Zhen; He, Zi-Hua; Li, Xiaoyü; Bao, Ai-Ke; Wang, Suo-Min; Ma, Qing

doi:10.1016/j.envexpbot.2020.104123

Cited by 5 publications

(2 citation statements)

References 59 publications

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“…This was the same as the results of our study, where CiNPF6.4/CiNRT1.3 expression was significantly upregulated in roots under CK and in leaves under T5. AtNPF7.3/AtNRT1.5 mediated root-to-stem transport, and the same conclusion was found for ZxNPF7.3/ZxNRT1.5 in the Zygophyllum xanthoxylum , which also contributed to the uptake of NO 3 − [ 50 ]. The expression levels of CiNPF7.3a / CiNRT1.3a were significantly upregulated in roots, leaves under CK, and roots under T4, indicating that both N scarcity and T4 may promote NO 3 − transport from roots to stems.…”

Section: Discussionsupporting

confidence: 57%

Genome-Wide Identification and Expression Analysis of AMT and NRT Gene Family in Pecan (Carya illinoinensis) Seedlings Revealed a Preference for NH4+-N

Chen

Zhu

Xie

et al. 2022

IJMS

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Nitrogen (N) is a major limiting factor for plant growth and crop production. The use of N fertilizer in forestry production is increasing each year, but the loss is substantial. Mastering the regulatory mechanisms of N uptake and transport is a key way to improve plant nitrogen use efficiency (NUE). However, this has rarely been studied in pecans. In this study, 10 AMT and 69 NRT gene family members were identified and systematically analyzed from the whole pecan genome using a bioinformatics approach, and the expression patterns of AMT and NRT genes and the uptake characteristics of NH4+ and NO3− in pecan were analyzed by aeroponic cultivation at varying NH4+/NO3− ratios (0/0, 0/100,25/75, 50/50, 75/25,100/0 as CK, T1, T2, T3, T4, and T5). The results showed that gene duplication was the main reason for the amplification of the AMT and NRT gene families in pecan, both of which experienced purifying selection. Based on qRT-PCR results, CiAMTs were primarily expressed in roots, and CiNRTs were majorly expressed in leaves, which were consistent with the distribution of pecan NH4+ and NO3− concentrations in the organs. The expression levels of CiAMTs and CiNRTs were mainly significantly upregulated under N deficiency and T4 treatment. Meanwhile, T4 treatment significantly increased the NH4+, NO3−, and NO2− concentrations as well as the Vmax and Km values of NH4+ and NO3− in pecans, and Vmax/Km indicated that pecan seedlings preferred to absorb NH4+. In summary, considering the single N source of T5, we suggested that the NH4+/NO3− ratio of 75:25 was more beneficial to improve the NUE of pecan, thus increasing pecan yield, which provides a theoretical basis for promoting the scale development of pecan and provides a basis for further identification of the functions of AMT and NRT genes in the N uptake and transport process of pecan.

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Section: Discussionsupporting

confidence: 57%

Genome-Wide Identification and Expression Analysis of AMT and NRT Gene Family in Pecan (Carya illinoinensis) Seedlings Revealed a Preference for NH4+-N

Chen

Zhu

Xie

et al. 2022

IJMS

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“…Ectopic overexpression of a high-affinity K + transporter-encoding gene, SbHKT1 , from S. bigelovii in cotton improved salt tolerance of transgenic plants by enhancing K + uptake capacity, K + /Na + homeostasis, and the scavenging of ROS through increased activities of antioxidant enzymes, including SOD, POD, and CAT [ 152 ]. On the other hand, transgenic Arabidopsis ectopically expressing Zygophyllum xanthoxylum nitrate transporter 1-encoding gene ZxNRT1.5 displayed improvement in NO 3 − uptake and root-to-shoot NO 3 − translocation, which eventually led to increased biosynthesis of amino acids in the transgenic plants that helped in an osmotic adjustment under salt stress [ 153 , 154 ]. Further studies are required to uncover the comprehensive molecular mechanisms underlying ZxNRT1.5 involvement in regulating Na + , K + , and Cl − transport.…”

Section: Potential Of Halophytes As Genetic Resources For the Engineering Of Crops With Improved Salt Tolerancementioning

confidence: 99%

Adaptive Mechanisms of Halophytes and Their Potential in Improving Salinity Tolerance in Plants

Rahman

Mostofa

Keya

et al. 2021

IJMS

102

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Soil salinization, which is aggravated by climate change and inappropriate anthropogenic activities, has emerged as a serious environmental problem, threatening sustainable agriculture and future food security. Although there has been considerable progress in developing crop varieties by introducing salt tolerance-associated traits, most crop cultivars grown in saline soils still exhibit a decline in yield, necessitating the search for alternatives. Halophytes, with their intrinsic salt tolerance characteristics, are known to have great potential in rehabilitating salt-contaminated soils to support plant growth in saline soils by employing various strategies, including phytoremediation. In addition, the recent identification and characterization of salt tolerance-related genes encoding signaling components from halophytes, which are naturally grown under high salinity, have paved the way for the development of transgenic crops with improved salt tolerance. In this review, we aim to provide a comprehensive update on salinity-induced negative effects on soils and plants, including alterations of physicochemical properties in soils, and changes in physiological and biochemical processes and ion disparities in plants. We also review the physiological and biochemical adaptation strategies that help halophytes grow and survive in salinity-affected areas. Furthermore, we illustrate the halophyte-mediated phytoremediation process in salinity-affected areas, as well as their potential impacts on soil properties. Importantly, based on the recent findings on salt tolerance mechanisms in halophytes, we also comprehensively discuss the potential of improving salt tolerance in crop plants by introducing candidate genes related to antiporters, ion transporters, antioxidants, and defense proteins from halophytes for conserving sustainable agriculture in salinity-prone areas.

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ZxABCG11 from the xerophyte Zygophyllum xanthoxylum enhances drought tolerance in Arabidopsis thaliana through modulating cuticular wax accumulation

Linbo

Bai

et al. 2021

Environmental and Experimental Botany

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ZxNPF7.3/NRT1.5 from the xerophyte Zygophyllum xanthoxylum modulates salt and drought tolerance by regulating NO3−, Na+ and K+ transport

Cited by 5 publications

References 59 publications

Genome-Wide Identification and Expression Analysis of AMT and NRT Gene Family in Pecan (Carya illinoinensis) Seedlings Revealed a Preference for NH4+-N

Genome-Wide Identification and Expression Analysis of AMT and NRT Gene Family in Pecan (Carya illinoinensis) Seedlings Revealed a Preference for NH4+-N

Adaptive Mechanisms of Halophytes and Their Potential in Improving Salinity Tolerance in Plants

ZxABCG11 from the xerophyte Zygophyllum xanthoxylum enhances drought tolerance in Arabidopsis thaliana through modulating cuticular wax accumulation

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