Plant Roots and Mineral Nutrition: An Overview of Molecular Basis of Uptake and Regulation, and Strategies to Improve Nutrient Use Efficiency (NUE)

Bhardwaj, Ekta; R.K.Shukla,; Das, Sandip

doi:10.1007/978-981-15-9380-2_5

Cited by 4 publications

(5 citation statements)

References 339 publications

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“…Some divalent metal ions, such as Zn 2+ , Fe 2+ , Mn 2+ , Cu 2+ , Co 2+ , and Ni 2+ , are essential elements in plants, playing crucial roles in numerous processes, including DNA replication, protein processing, photosynthesis, electron transport in the chloroplasts, and mitochondria. Although deficiency of these metals negatively affects plant growth and development, they can also result in toxicity at excessive levels (Bhardwaj et al, 2020). Correspondingly, plants have deployed a variety of adaptive mechanisms to precisely maintain metal homeostasis, including controlling the uptake, efflux, mobilization, translocation, trafficking, and storage (Liu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide Identification of Metal Tolerance Protein Genes in Peanut: Differential Expression in the Root of Two Contrasting Cultivars Under Metal Stresses

Wang

Zhang

et al. 2022

Front. Plant Sci.

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Metal tolerance proteins (MTP) are Me2+/H+(K+) antiporters that play important roles in the transport of divalent cations in plants. However, their functions in peanut are unknown. In the present study, a total of 24 AhMTP genes were identified in peanut, which were divided into seven groups belonging to three substrate-specific clusters (Zn-CDFs, Zn/Fe-CDFs, and Mn-CDFs). All AhMTP genes underwent whole genome or segmental gene duplication events except AhMTP12. Most AhMTP members within the same subfamily or group generally have similar gene and protein structural characteristics. However, some genes, such as AhMTP1.3, AhMTP2.4, and AhMTP12, showed wide divergences. Most of AhMTP genes preferentially expressed in reproductive tissues, suggesting that these genes might play roles in metal transport during the pod and seed development stages. Excess metal exposure induced expressions for most of AhMTP genes in peanut roots depending on cultivars. By contrast, AhMTP genes in the root of Fenghua 1 were more sensitive to excess Fe, Cd, and Zn exposure than that of Silihong. Stepwise linear regression analysis showed that the percentage of Fe in shoots significantly and positively correlated with the expression of AhMTP4.1, AhMTP9.1, and AhMTPC4.1, but negatively correlated with that of AhMTPC2.1 and AhMTP12. The expression of AhMTP1.1 showed a significant and negative correlation with the percentage of Mn in shoots. The percentage of Zn in shoots was significantly and positively correlated with the expression of AhMTP2.1 but was negatively correlated with that of AhMTPC2.1. The differential responses of AhMTP genes to metal exposure might be, at least partially, responsible for the different metal translocation from roots to shoots between Fenghua 1 and Silihong.

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Section: Introductionmentioning

confidence: 99%

Genome-wide Identification of Metal Tolerance Protein Genes in Peanut: Differential Expression in the Root of Two Contrasting Cultivars Under Metal Stresses

Wang

Zhang

et al. 2022

Front. Plant Sci.

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“…The deficiency of essential metals negatively affects plant growth and development. However, when excessively accumulated, they can cause toxicity [ 1 ]. Thus, plants have to establish a series of regulatory mechanisms to precisely maintain the homeostasis of essential metals.…”

Section: Introductionmentioning

confidence: 99%

“…2024, 25, 613 2 of 17 metal-binding domains (MBDs) at the N-and C-termini [5,6]. Phylogenetically, HMAs can be classified into six clusters (1)(2)(3)(4)(5)(6) that are responsible for transporting Cu/Ag (clusters [3][4][5][6] or Zn/Cd/Co/Pb (clusters 1-2) [5,7].…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification and Expression Profiling of Heavy Metal ATPase (HMA) Genes in Peanut: Potential Roles in Heavy Metal Transport

Li,

Zhang,

Shi

2024

IJMS

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The heavy metal ATPase (HMA) family belongs to the P-type ATPase superfamily and plays an essential role in the regulation of metal homeostasis in plants. However, the gene family has not been fully investigated in peanut. Here, a genome-wide identification and bioinformatics analysis was performed on AhHMA genes in peanut, and the expression of 12 AhHMA genes in response to Cu, Zn, and Cd was evaluated in two peanut cultivars (Silihong and Fenghua 1) differing in Cd accumulation. A total of 21 AhHMA genes were identified in the peanut genome, including ten paralogous gene pairs derived from whole-genome duplication, and an additional gene resulting from tandem duplication. AhHMA proteins could be divided into six groups (I–VI), belonging to two clades (Zn/Co/Cd/Pb-ATPases and Cu/Ag-ATPases). Most AhHMA proteins within the same clade or group generally have a similar structure. However, significant divergence exists in the exon/intron organization even between duplicated gene pairs. RNA-seq data showed that most AhHMA genes are preferentially expressed in roots, shoots, and reproductive tissues. qRT-PCR results revealed that AhHMA1.1/1.2, AhHMA3.1/3.2, AhHMA7.1/7.4, and AhHMA8.1 might be involved in Zn transport in peanut plants, while AhHMA3.2 and AhHMA7.5 might be involved in Cd transport. Our findings provide clues to further characterize the functions of AhHMA genes in metal uptake and translocation in peanut plants.

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“…Among others, the processes for which presence of these ions is vital are protein processing, photosynthesis, replication of DNA as well as electron transport in mitochondria and/or chloroplasts. The low level of these ions in plant tissues can also be detrimental, affecting the growth and development (Bhardwaj et al, 2020). Due to need of precisely maintaining the appropriate level of metal ions, plants have developed a complex machinery allowing them to control the uptake, tra cking, mobilization, translocation, e ux and storage of essential metal ions (Liu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Metal tolerance gene family in barley: An in silico comprehensive analysis

Tanwar

Stolarska

Rudy

et al. 2022

Preprint

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Metal-tolerance proteins (MTPs) are divalent cation transporters that play critical roles in metal tolerance and ion homeostasis in plants. However, a comprehensive study of MTPs is still lacking in crop plants. The current study aimed to comprehensively identify and characterize the MTP gene family in barley (Hv), an important crop. In total, 12 HvMTPs were identified in the barley genome in this study. They were divided into three phylogenetic groups (Zn-cation diffusion facilitator proteins [CDFs], Fe/Zn-CDFs, and Mn-CDFs) and further subdivided into seven groups (G1, G5, G6, G7, G8, G9, and G12). The majority of MTPs were hydrophobic proteins found in the plasma membrane. Gene duplication analysis of HvMTPs revealed one pair of segmental-like duplications in the barley genome. Evolutionary analysis suggested that barley MTPs undergone through purification selection. Additionally, the HvMTPs were analyzed in the pan-genome sequences of barley (20 accessions), which suggests that HvMTPs are highly conserved in barley evolution. Cis-acting regulatory elements, microRNA target sites, and protein-protein interaction analysis indicated the role of HvMTPs in a variety of biological processes. Expression profiling suggests that HvMTPs play an active role in maintaining barley nutrient homeostasis throughout its life cycle and their expression levels were not significantly altered by abiotic stresses like cold, drought, or heat. The expression of barley HvMTP genes in the presence of heavy metals such as Zn2+, Cu2+, As3+, and Cd2+ revealed that these MTPs were induced by at least one metal ion, implying their involvement in metal tolerance or transportation. The identification and comprehensive investigation of MTP gene family members will provide important gene resources for the genetic improvement of crops for metal tolerance, bioremediation, or biofortification of staple crops.

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Plant Roots and Mineral Nutrition: An Overview of Molecular Basis of Uptake and Regulation, and Strategies to Improve Nutrient Use Efficiency (NUE)

Cited by 4 publications

References 339 publications

Genome-wide Identification of Metal Tolerance Protein Genes in Peanut: Differential Expression in the Root of Two Contrasting Cultivars Under Metal Stresses

Genome-wide Identification of Metal Tolerance Protein Genes in Peanut: Differential Expression in the Root of Two Contrasting Cultivars Under Metal Stresses

Genome-Wide Identification and Expression Profiling of Heavy Metal ATPase (HMA) Genes in Peanut: Potential Roles in Heavy Metal Transport

Metal tolerance gene family in barley: An in silico comprehensive analysis

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