Potential use of Schumannianthus dichotomus waste: the phytotoxic activity of the waste and its identified compounds

Md Mahfuzur Rob, Arihiro Iwasaki, Kiyotake Suenaga, Kaori Ozaki, Toshiaki Teruya, Hisashi Kato-Noguchi

研究成果: Article査読

2 被引用数 (Scopus)


The phytotoxic potential of the leaves and twigs of Schumannianthus dichotomus, discarded in the mat-making industry against four test plants (lettuce (Lactuca sativa L.), rapeseed (Brassica napus L.), foxtail fescue (Vulpia myuros (L.) C.C. Gmel.) and timothy (Phleum pratense L.)) was investigated and found strong phytotoxic activity. An assay-guided fractionation of S. dichotomus extarcts against cress (Lepidium sativum L.) through a series of column chromatography steps yielded two compounds, 8-(5-oxo-2,5-dihydrofuran-2-yl) octanoic acid (ODFO) and (E)-6-hydroxy-2,6-dimethylocta-2,7-dienoic acid (8-carboxylinalool). ODFO and 8-carboxylinalool showed strong phytotoxic activity against cress and timothy. The concentrations required for 50% growth inhibition (I 50 value) of the seedlings of cress and timothy were 111.94–128.01 and 36.30–91.75 µM, respectively, for ODFO, but the values were much higher at 315.98–379.13 and 107.92–148.41 µM, respectively, for 8-carboxylinalool, indicating the stronger phytotoxic activity of ODFO. This study is the first to isolate ODFO and 8-carboxylinalool from S. dichotomus and their phytotoxic potential while ODFO is firstly encountered from any natural source. The growth inhibitory activity of the identified compounds may explain their role in the phytotoxic activity of S. dichotomus, which suggests the possible use of its leaves and twigs or its active constituents as natural bioherbicides.

ジャーナルJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • 食品科学
  • 汚染


「Potential use of Schumannianthus dichotomus waste: the phytotoxic activity of the waste and its identified compounds」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。