Development of a diagnostic method for boron deficiency in plants using borate cross-linking ratio of pectin in cell walls as an index

2015 Fiscal Year Final Research Report

• Project/Area Number: 25450087
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant nutrition/Soil science
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: MATSUNAGA Toshiro 国立研究開発法人農業・食品産業技術総合研究機構, 中央農業総合研究センター土壌肥料研究領域, 上席研究員 (20355647)
• Co-Investigator(Kenkyū-buntansha): CHISHAKI Naoya 鹿児島大学, 農学部, 准教授 (60244266)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ホウ素欠乏診断 / ホウ酸架橋率 / 植物細胞壁 / ペクチン / ラムノガラクツロナンⅡ

Outline of Final Research Achievements

The function of boron in plants is nowadays well established to be the stabilization of cell walls by borate cross-linking of wall pectin. We attempted to develop a diagnostic method for boron deficiency in plants using the borate cross-linking ratio of pectin as an index. Recently, blackening disorder of broad bean pods caused by boron deficiency was observed in farmers’ fields in Kagoshima prefecture, Japan. We used the affected broad bean plants as samples to demonstrate the usefulness of the method of diagnosis for boron deficiency occurred in fields. Then we applied the diagnostic method to several crops on which boron deficiency was suspected from the symptom, and finally proposed diagnostic criteria for boron deficiency.

Free Research Field

土壌肥料学