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Horticulturae
Volume 11
Issue 2
10.3390/horticulturae11020146
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Article

Table Grape Ferritin1 Is Implicated in Iron Accumulation, Iron Homeostasis, and Plant Tolerance to Iron Toxicity and H2O2 Induced Oxidative Stress

by
Zhenqiang Xie
1,2,†,
Bin Peng
1,2,†,
Matthew Shi
2,3,
Guangrong Yang
1,2 and
Zhizhong Song
2,4,*
1
School of Agriculture and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Zhenjiang 212499, China
2
School of Horticulture, Ludong University, Yantai 264025, China
3
Faculty of Wolfson, University of Cambridge, Cambridge CB3 9BB, UK
4
Department of Plant Science, University of Cambridge, Cambridge CB2 3EA, UK
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Horticulturae 2025, 11(2), 146; https://doi.org/10.3390/horticulturae11020146
Submission received: 12 January 2025 / Revised: 25 January 2025 / Accepted: 29 January 2025 / Published: 31 January 2025
(This article belongs to the Special Issue Advances in Abiotic Stress or Environmental Influence on Horticultural Traits of Garden Crops)
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Abstract

In plants, Ferritin is the earliest discovered regulator of iron (Fe) metabolism and plays a critical role in maintaining Fe storage and sequestration, which contributes to cellular Fe homeostasis and tolerance to abiotic stresses. However, biological functions of Ferritin proteins in perennial fruit crops are largely rare. In this study, VvFerritin1 was isolated from ‘Irsay Oliver’ table grape, and it was mainly expressed in roots and induced under Fe toxicity, H2O2 stress, and abscisic acid (ABA) treatment. Complementation of VvFerritin2 in yeast mutant DEY1453 directly restored the mutant growth, and VvFerritin1 can transport Fe2+ in yeast. The heterologous expression of VvFerritin1 in fer1-2 mutant effectively rescued the dwarfed growth of Arabidopsis fer1-2 mutant, under the control condition, Fe toxicity, or H2O2 stress, embodied in enhanced fresh weight (126%, 81%, or 48%), total root length (140%, 98%, or 64%), total root surface (70%, 84%, or 120%), and total leaf chlorophyll (56%, 51%, or 53%), respectively. In particular, tissue Fe concentration and activities of nitrite reductase (NiR), aconitase (ACO), and succinate dehydrogenase (SDH) were significantly enhanced in fer1-2/35S::Ferritin1 lines, respectively, compared to that of fer1-2 mutant. This work contributes to the study of molecular mechanisms of Fe storage and homeostasis in ‘Irsay Oliver’ table grape.
Keywords: table grape; Fe storage; ferritin; fer1-2 mutant; Fe toxicity; H2O2 stress table grape; Fe storage; ferritin; fer1-2 mutant; Fe toxicity; H2O2 stress

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MDPI and ACS Style

Xie, Z.; Peng, B.; Shi, M.; Yang, G.; Song, Z. Table Grape Ferritin1 Is Implicated in Iron Accumulation, Iron Homeostasis, and Plant Tolerance to Iron Toxicity and H2O2 Induced Oxidative Stress. Horticulturae 2025, 11, 146. https://doi.org/10.3390/horticulturae11020146

AMA Style

Xie Z, Peng B, Shi M, Yang G, Song Z. Table Grape Ferritin1 Is Implicated in Iron Accumulation, Iron Homeostasis, and Plant Tolerance to Iron Toxicity and H2O2 Induced Oxidative Stress. Horticulturae. 2025; 11(2):146. https://doi.org/10.3390/horticulturae11020146

Chicago/Turabian Style

Xie, Zhenqiang, Bin Peng, Matthew Shi, Guangrong Yang, and Zhizhong Song. 2025. "Table Grape Ferritin1 Is Implicated in Iron Accumulation, Iron Homeostasis, and Plant Tolerance to Iron Toxicity and H2O2 Induced Oxidative Stress" Horticulturae 11, no. 2: 146. https://doi.org/10.3390/horticulturae11020146

APA Style

Xie, Z., Peng, B., Shi, M., Yang, G., & Song, Z. (2025). Table Grape Ferritin1 Is Implicated in Iron Accumulation, Iron Homeostasis, and Plant Tolerance to Iron Toxicity and H2O2 Induced Oxidative Stress. Horticulturae, 11(2), 146. https://doi.org/10.3390/horticulturae11020146

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