Distribution of some mineral elements in grass tissues.

一些矿物元素在草组织中的分布。

• 批准号: 02660267
• 负责人: SAIGA Suguru
• 金额: $ 1.28万
• 依托单位: Agriculture Department, Iwate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02660267/
• 关键词: Calcium; Image analysis; Magnesium; Mineral distribution; Orchardgrass; Perennial ryegrass; Tall fescue; X-ray analysis; X線分布; 寒地型牧草; ミネラル; 画像処理; 維管束; 厚壁組織; サフラニン

The efficiency of minerals for ruminants differs according to the kind of minerals and forage species. A possible factor causing this difference is the distribution pattern of minerals in plant tissues. This experiment is to investigate the distribution of macrominerals in different tissues of orchardgrass, tall fescue and perennial ryegrass. For this purpose, energy-dispersive X-ray analysis was used to determine distributional patterns of macrominerals in plant tissues.In each unit, silicon and potassium (K) were the most predominant elements, followed by chlorine (CL), calcium (Ca), sulfur and phosphorus; a small amount of magnesium was also detected. Silicon existed mostly in epidermal structures. Although the other minerals were distributed generally throughout the sectional area, Ca was abundant at the developed secondary cell walls, and K and Cl were especially higher in vascular tissues.Silica distributed mostly in epidermal structures. Bright spots of calcium were observed especially at developed secondary cell walls. Distributions of K, Cl, P and Mg covered the entire surface area of each cross section. Potassium and Cl were especially higher in vascular tissues. The low efficiency of Ca is partially caused by the distributional pattern, and was abundant at developed secondary cell walls. However, no distributional relationship was observed for the other minerals.

反刍动物对矿物质的利用效率因矿物质种类和饲料种类的不同而不同。造成这种差异的一个可能因素是植物组织中矿物质的分布模式。本试验旨在研究果园草、高羊茅和多年生黑麦草不同组织中微量元素的分布。为此，利用能量色散x射线分析来确定植物组织中巨量矿物质的分布模式。在各单元中，硅和钾是最主要的元素，其次是氯、钙、硫和磷；还检测到少量镁。硅主要存在于表皮结构中。虽然其他矿物质普遍分布在整个截面积，但Ca在发育的次生细胞壁中含量丰富，K和Cl在维管组织中含量尤其高。二氧化硅主要分布在表皮结构中。特别是在发育的次级细胞壁处，可见钙的亮斑。K、Cl、P和Mg的分布覆盖了每个截面的整个表面积。钾和氯在维管组织中含量更高。钙的低效率部分是由钙的分布模式造成的，在发育的次生细胞壁上富集。其他矿物的分布关系不明显。

项目成果

Suguru SAIGA, Hajime OIKAWA, Moegi SASAKI and Hisashi TAKUSARI: "Distribution of macrominerals in different tissues of a leaf blade of tall fescue (Festuca arundinacea Schreb.)." J.Japan. Grassld. Sci.vol.39. (1993)

Suguru SAIGA、Hajime OIKAWA、Moegi SASAKI 和 Hisashi TAKUSARI：“高羊茅 (Festuca arundinacea Schreb.) 叶片不同组织中大量矿物质的分布。”

S.SAIGA,T.AKIYAMA,M.SASAKI and K.WATANABE: "Paritioning of mineral element concetration of grasses into four fractions the bases of structural digestibility." Proc.17th Internal.Grassld.Conger. 17. (1993)

S.SAIGA、T.AKIYAMA、M.SASAKI 和 K.WATANABE：“将草的矿物元素浓度划分为四个部分，这是结构消化率的基础。”

S.Saiga,H.Oikawa,M.Sasaki and H.Takusari: "Distribution of macrominerals in different tissues of a leaf blade of tall fescue(Festuca arundinacea Schreb.)." J.Japan.Grassld.Sci.39. (1993)

S.Saiga、H.Oikawa、M.Sasaki 和 H.Takusari：“高羊茅（Festuca arundinacea Schreb.）叶片不同组织中大量矿物质的分布。”

S.SAIGA,H.OIKAWA,M.SASAKI and H.TAKUSARI: "Distribution of macrominerals in different tissues of a leaf dlade of tall fescue (Festuca arundinaces Schred.)." J.Japan.Grassld.Sci.39. (1993)

S.SAIGA、H.OIKAWA、M.SASAKI 和 H.TAKUSARI：“高羊茅 (Festuca arundinaces Schred) 叶片不同组织中大量矿物质的分布。”

Suguru SAIGA, Takanori AKIYAMA, Moegi SASAKI and Kiyoshi WATANABE: "Partitioning of mineral elements concentration of grasses into four fractions on the bases of structural digestibility." Proc. 17th Internl. Grassld. Congr.(1993)

Suguru SAIGA、Takanori AKIYAMA、Moegi SASAKI 和 Kiyoshi WATANABE：“根据结构消化率将草的矿物质元素浓度划分为四个部分。”