The Ionomic Study of Vegetable Crops.
The Ionomic Study of Vegetable Crops.
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DOI：
10.1371/journal.pone.0160273
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Shinano T
中科院分区：
文献类型：
--
作者：
Watanabe T;Maejima E;Yoshimura T;Urayama M;Yamauchi A;Owadano M;Okada R;Osaki M;Kanayama Y;Shinano T
土壤中含有各种必需和非必需的元素，这些元素都可以被植物吸收。植物离子组学是研究这些元素（离子组）在植物中的积累。植物的生态学特征受多种因素的影响，包括物种、品种、器官和环境。在这项研究中，我们培养了不同的蔬菜作物品种和品种在相同的田间条件下，并分析了每种元素的积累水平，在可食用和不可食用的部分使用离子技术。各元素的浓度在可食用部分不同的物种，这可以部分地解释了不同的可食用器官（根，叶，种子和果实）的类型。例如，种子和果实中的钙浓度低于其他器官，因为钙积累对木质部转移的依赖性更高。几种必需微量元素和非必需元素的可食用部分的浓度也有很大的不同品种的同一物种，知识，这将有助于在育种的蔬菜是生物强化或含有较低浓度的有毒元素。比较了番茄和茄子果实和叶片的离体酶活性。melongena）的研究表明，镉和硼在茄子果实中有较高的积累水平，这可能是由于它们在韧皮部中的有效运输。我们还发现，已报告共享相同的吸收/运输系统的同源元素往往只在少数家庭中表现出显着的相关性，这些关系的斜率不同的家庭之间。因此，这些矿物积累特征的差异可能会影响不同科的生物学概况。
Soil contains various essential and nonessential elements, all of which can be absorbed by plants. Plant ionomics is the study of the accumulation of these elements (the ionome) in plants. The ionomic profile of a plant is affected by various factors, including species, variety, organ, and environment. In this study, we cultivated various vegetable crop species and cultivars under the same field conditions and analyzed the level of accumulation of each element in the edible and nonedible parts using ionomic techniques. The concentration of each element in the edible parts differed between species, which could be partly explained by differences in the types of edible organs (root, leaf, seed, and fruit). For example, the calcium concentration was lower in seeds and fruit than in other organs because of the higher dependency of calcium accumulation on xylem transfer. The concentration of several essential microelements and nonessential elements in the edible parts also varied greatly between cultivars of the same species, knowledge of which will help in the breeding of vegetables that are biofortified or contain lower concentrations of toxic elements. Comparison of the ionomes of the fruit and leaves of tomato (Solanum lycopersicum) and eggplant (S. melongena) indicated that cadmium and boron had higher levels of accumulation in eggplant fruit, likely because of their effective transport in the phloem. We also found that homologous elements that have been reported to share the same uptake/transport system often showed significant correlation only in a few families and that the slopes of these relationships differed between families. Therefore, these differences in the characteristics of mineral accumulation are likely to affect the ionomic profiles of different families.