Phylogenetic and Expression Analysis of Pear Yellow Stripe-Like Transporters and Functional Verification of PbrYSL4 in Pear Pollen

Yang, Jie; Chen, Xi; Ma, Gang; Wang, Peng; Fabrice, Musana R.; Zhang, Shaoling; Wu, Juyou

doi:10.1007/s11105-015-0959-6

Cited by 4 publications

(1 citation statement)

References 49 publications

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“…The transcription factor WRKY12 negatively regulates the Fe intake in A. thaliana seeds by inhibiting the expression of the AtYSL1 and AtYSL3 genes [ 188 ]. Similarly to A. thaliana , eight YSL genes have now been identified in Pyrus bretschneideri , with PbrYSL4 having an especially high expression in all tissues, particularly during pollen tube growth [ 189 ].…”

Section: Transport and Physiological Role Of Nicotianamine In Plantsmentioning

confidence: 99%

Nicotianamine: A Key Player in Metal Homeostasis and Hyperaccumulation in Plants

Серегин

Кожевникова

2023

IJMS

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Nicotianamine (NA) is a low-molecular-weight N-containing metal-binding ligand, whose accumulation in plant organs changes under metal deficiency or excess. Although NA biosynthesis can be induced in vivo by various metals, this non-proteinogenic amino acid is mainly involved in the detoxification and transport of iron, zinc, nickel, copper and manganese. This review summarizes the current knowledge on NA biosynthesis and its regulation, considers the mechanisms of NA secretion by plant roots, as well as the mechanisms of intracellular transport of NA and its complexes with metals, and its role in radial and long-distance metal transport. Its role in metal tolerance is also discussed. The NA contents in excluders, storing metals primarily in roots, and in hyperaccumulators, accumulating metals mainly in shoots, are compared. The available data suggest that NA plays an important role in maintaining metal homeostasis and hyperaccumulation mechanisms. The study of metal-binding compounds is of interdisciplinary significance, not only regarding their effects on metal toxicity in plants, but also in connection with the development of biofortification approaches to increase the metal contents, primarily of iron and zinc, in agricultural plants, since the deficiency of these elements in food crops seriously affects human health.

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Section: Transport and Physiological Role Of Nicotianamine In Plantsmentioning

confidence: 99%

Nicotianamine: A Key Player in Metal Homeostasis and Hyperaccumulation in Plants

Серегин

Кожевникова

2023

IJMS

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PcWRKY1 Represses Transcription of Yellow Stripe‐Like 3 (PcYSL3) to Negatively Regulate Radial Cadmium Transport in Poplar Stems

Chen,

Zhang,

Cheng

et al. 2024

Advanced Science

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A considerable amount of cadmium (Cd) can accumulate in the bark of poplar stems, but the Cd transport pathway and its underlying molecular mechanisms remain unknown. Here, a Cd radial transport pathway in poplar stems and a previously unrecognized PcWRKY1‐Yellow Stripe‐Like 3 (PcYSL3) module that regulates Cd transport are identified in Populus × canescens (Aiton) Sm. Cadmiun‐nicotianamine (Cd‐NA) in xylem vessels in poplar stem‐wood is unloaded to adjacent ray parenchyma cells and further radially transported to bark‐phloem. PcYSL3 is putatively identified as involved in Cd radial transport in poplar stems. PcYSL3 is highly expressed in ray parenchyma cells adjacent to xylem vessels and the encoded protein localizes on the plasma membrane. Cd accumulation is greater in the wood and bark of PcYSL3‐overexpressing poplars than the wild type, whereas the opposite is observed in PcYSL3‐knockdown plants. PcWRKY1 can bind to the PcYSL3 promoter sequence and represses its expression. PcWRKY1 inhibits Cd accumulation in the wood and bark of plants. Thus, PcWRKY1 suppresses PcYSL3 transcription to negatively regulate Cd‐NA unloading from xylem vessels to adjacent ray parenchyma cells and its radial transport in poplar stem. The findings have provided new insights into breeding of poplars for more effective remediation of heavy metal‐contaminated soils.

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Overexpression of a Miscanthus sacchariflorus yellow stripe-like transporter MsYSL1 enhances resistance of Arabidopsis to cadmium by mediating metal ion reallocation

et al. 2018

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Phylogenetic and Expression Analysis of Pear Yellow Stripe-Like Transporters and Functional Verification of PbrYSL4 in Pear Pollen

Cited by 4 publications

References 49 publications

Nicotianamine: A Key Player in Metal Homeostasis and Hyperaccumulation in Plants

Nicotianamine: A Key Player in Metal Homeostasis and Hyperaccumulation in Plants

PcWRKY1 Represses Transcription of Yellow Stripe‐Like 3 (PcYSL3) to Negatively Regulate Radial Cadmium Transport in Poplar Stems

Overexpression of a Miscanthus sacchariflorus yellow stripe-like transporter MsYSL1 enhances resistance of Arabidopsis to cadmium by mediating metal ion reallocation

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