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Iron Inefficiency in Maize Mutant ys1 (Zea mays L. cv Yellow-Stripe) Is Caused by a Defect in Uptake of Iron Phytosiderophores
Open accessAbstract
To determine the Fe inefficiency factors in the maize mutant ys1 (Zea mays L. cv Yellow Stripe), root exudates of Fe-inefficient ys1 and of two Fe-efficient maize cultivars (Alice, WF9) were collected in axenic nutrient solution cultures. Analysis by thin-layer chromatography and high-performance liquid chromatography revealed that under Fe deficiency ys1 released the phytosiderophore 2[prime]-deoxymugineic acid (DMA) in quantities similar to those of Alice and WF9. Under nonaxenic conditions, DMA released by plants of all three cultivars was rapidly decomposed by microorganisms in the nutrient solution. Uptake experiments with 59Fe-labeled DMA, purified from root exudates of either Fe-deficient Alice or ys1 plants, showed up to 20 times lower uptake and translocation of 59Fe in ys1 than in Alice or WF9 plants. The presence of microorganisms during preculture and short-term uptake experiments had no significant effect on uptake and translocation rates of 59Fe in Alice and ys1 plants. We conclude that Fe inefficiency in the maize mutant ys1 is the result of a defect in the uptake system for Fe-phytosiderophores.
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Citations
Cited by
Salt, D. E., Smith, R. D., & Raskin, I. (1998) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.49.1.643 · Cited by 2,085
Carvalhais, L. C., Dennis, P. G., Fedoseyenko, D., Hajirezaei, M., Borriss, R., & von Wirén, N. (2011) · Journal of Plant Nutrition and Soil Science · doi:10.1002/jpln.201000085 · Cited by 601
Iron Transport and Signaling in Plants
Curie, C., & Briat, J.-F. (2003) · Annual Review of Plant Biology · doi:10.1146/annurev.arplant.54.031902.135018 · Cited by 570
Ishimaru, Y., Masuda, H., Bashir, K., Inoue, H., Tsukamoto, T., Takahashi, M., Nakanishi, H., Aoki, N., Hirose, T., Ohsugi, R., et al. (2010) · The Plant Journal · doi:10.1111/j.1365-313x.2010.04158.x · Cited by 447
Trace metal metabolism in plants
Andresen, E., Peiter, E., & Küpper, H. (2018) · Journal of Experimental Botany · doi:10.1093/jxb/erx465 · Cited by 431
Metadata
- Authors
- von Wiren, N., Mori, S., Marschner, H., & Romheld, V.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1994-09-01
- Volume
- 106
- Issue
- 1
- Pages
- 71-77
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2126952793
- Cited by
- 248
- References
- 0
- FWCI
- 9.33
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Iron Inefficiency in Maize Mutant ys1 (Zea mays L. cv Yellow-Stripe) Is Caused by a Defect in Uptake of Iron Phytosiderophores. https://app.cochat.ai/papers/10.1104/pp.106.1.71
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- von Wiren, N., Mori, S., Marschner, H., & Romheld, V. (1994). Iron Inefficiency in Maize Mutant ys1 (Zea mays L. cv Yellow-Stripe) Is Caused by a Defect in Uptake of Iron Phytosiderophores. Plant Physiology. https://doi.org/10.1104/pp.106.1.71
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