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双子叶植物种子中铁的多样分布：从拟南芥到藜麦

The Diverse Iron Distribution in Eudicotyledoneae Seeds: From Arabidopsis to Quinoa.

作者信息

Ibeas Miguel Angel, Grant-Grant Susana, Coronas Maria Fernanda, Vargas-Pérez Joaquín Ignacio, Navarro Nathalia, Abreu Isidro, Castillo-Michel Hiram, Avalos-Cembrano Natalia, Paez Valencia Julio, Perez Fernanda, González-Guerrero Manuel, Roschzttardtz Hannetz

机构信息

Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.

Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain.

出版信息

Front Plant Sci. 2019 Jan 15;9:1985. doi: 10.3389/fpls.2018.01985. eCollection 2018.

DOI:10.3389/fpls.2018.01985
PMID:30697224
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6341002/
Abstract

Seeds accumulate iron during embryo maturation stages of embryogenesis. Using as model plant, it has been described that mature embryos accumulate iron within a specific cell layer, the endodermis. This distribution pattern was conserved in most of the analyzed members from Brassicales, with the exception of the basal that also showed elevated amounts of iron in cortex cells. To determine whether the iron distribution was indicative of a wider pattern in non-Brassicales Eudicotyledoneae, we studied iron distribution pattern in different embryos belonging to plant species from different Orders from Eudicotyledoneae and one basal from Magnoliidae. The results obtained indicate that iron distribution in embryo is an extreme case of apomorphic character found in Brassicales, not-extensive to the rest of Eudicotyledoneae.

摘要

种子在胚胎发育的胚胎成熟阶段积累铁。以[具体植物名称]作为模式植物，已有研究表明成熟胚在特定细胞层——内皮层中积累铁。这种分布模式在十字花目大多数被分析的成员中是保守的，除了基部[具体植物名称]，其皮层细胞中也显示出较高的铁含量。为了确定[具体植物名称]的铁分布是否代表非十字花目真双子叶植物中更广泛的模式，我们研究了来自真双子叶植物不同目以及木兰科一种基部植物的不同胚胎中的铁分布模式。所得结果表明，[具体植物名称]胚胎中的铁分布是十字花目中发现的一种特化性状的极端情况，并非普遍存在于其他真双子叶植物中。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/54f7ddf90929/fpls-09-01985-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/5f9d2086a7f8/fpls-09-01985-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/2d6d752b1870/fpls-09-01985-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/d0cda4d286aa/fpls-09-01985-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/6c177b36e8f1/fpls-09-01985-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/8a78b71147e6/fpls-09-01985-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/ce4ec6ab8004/fpls-09-01985-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/54f7ddf90929/fpls-09-01985-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/5f9d2086a7f8/fpls-09-01985-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/2d6d752b1870/fpls-09-01985-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/d0cda4d286aa/fpls-09-01985-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/6c177b36e8f1/fpls-09-01985-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/8a78b71147e6/fpls-09-01985-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/ce4ec6ab8004/fpls-09-01985-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/caa1/6341002/54f7ddf90929/fpls-09-01985-g007.jpg

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Metal Tolerance Protein 8 Mediates Manganese Homeostasis and Iron Reallocation during Seed Development and Germination.
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