Abstract
Cassia alata (Caesalpiniaceae) is a large perennial shrub native to tropical America. It is an important medicinal and ornamental plant and has been reported to possess several pharmacological properties. However, phytotoxic substances from C. alata have not yet been documented in the literature. Therefore, this study seeks to evaluate the phytotoxic potential of C. alata leaves and to identify inhibitory substances for the purpose of eco-friendly weed management. The effect of aqueous methanol extracts of C. alata on the seedling growth of alfalfa, cress, lettuce, rapeseed, barnyard grass, foxtail fescue, Italian ryegrass, and timothy was examined. The level of inhibition of the extracts corresponded to concentration. Several chromatographic steps were performed to separate the extracts, and through spectroscopic analysis, two active substances were isolated and characterised as rutin and syringone. These two active substances significantly inhibited the seedling growth of cress and foxtail fescue. The range of I 50 values (required concentration for 50% growth inhibition) of rutin and syringone for the seedling growth of cress and foxtail fescue were 129.5–417.8 and 160.1–466.5 µM, respectively. These results indicate that the two identified active phytotoxic substances from C. alata may be responsible for its growth inhibitory properties.
| Original language | English |
|---|---|
| Journal | Acta Agriculturae Scandinavica Section B: Soil and Plant Science |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
Fingerprint
Keywords
- Cassia alata
- eco-friendly weed management
- phytotoxic substances
- rutin
- syringone
ASJC Scopus subject areas
- Agronomy and Crop Science
- Soil Science
Cite this
Evaluation of phytotoxic potential and identification of phytotoxic substances in Cassia alata Linn. leaves. / Das, Krishna Rany; Iwasaki, Arihiro; Suenaga, Kiyotake; Kato-Noguchi, Hisashi.
In: Acta Agriculturae Scandinavica Section B: Soil and Plant Science, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evaluation of phytotoxic potential and identification of phytotoxic substances in Cassia alata Linn. leaves
AU - Das, Krishna Rany
AU - Iwasaki, Arihiro
AU - Suenaga, Kiyotake
AU - Kato-Noguchi, Hisashi
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Cassia alata (Caesalpiniaceae) is a large perennial shrub native to tropical America. It is an important medicinal and ornamental plant and has been reported to possess several pharmacological properties. However, phytotoxic substances from C. alata have not yet been documented in the literature. Therefore, this study seeks to evaluate the phytotoxic potential of C. alata leaves and to identify inhibitory substances for the purpose of eco-friendly weed management. The effect of aqueous methanol extracts of C. alata on the seedling growth of alfalfa, cress, lettuce, rapeseed, barnyard grass, foxtail fescue, Italian ryegrass, and timothy was examined. The level of inhibition of the extracts corresponded to concentration. Several chromatographic steps were performed to separate the extracts, and through spectroscopic analysis, two active substances were isolated and characterised as rutin and syringone. These two active substances significantly inhibited the seedling growth of cress and foxtail fescue. The range of I 50 values (required concentration for 50% growth inhibition) of rutin and syringone for the seedling growth of cress and foxtail fescue were 129.5–417.8 and 160.1–466.5 µM, respectively. These results indicate that the two identified active phytotoxic substances from C. alata may be responsible for its growth inhibitory properties.
AB - Cassia alata (Caesalpiniaceae) is a large perennial shrub native to tropical America. It is an important medicinal and ornamental plant and has been reported to possess several pharmacological properties. However, phytotoxic substances from C. alata have not yet been documented in the literature. Therefore, this study seeks to evaluate the phytotoxic potential of C. alata leaves and to identify inhibitory substances for the purpose of eco-friendly weed management. The effect of aqueous methanol extracts of C. alata on the seedling growth of alfalfa, cress, lettuce, rapeseed, barnyard grass, foxtail fescue, Italian ryegrass, and timothy was examined. The level of inhibition of the extracts corresponded to concentration. Several chromatographic steps were performed to separate the extracts, and through spectroscopic analysis, two active substances were isolated and characterised as rutin and syringone. These two active substances significantly inhibited the seedling growth of cress and foxtail fescue. The range of I 50 values (required concentration for 50% growth inhibition) of rutin and syringone for the seedling growth of cress and foxtail fescue were 129.5–417.8 and 160.1–466.5 µM, respectively. These results indicate that the two identified active phytotoxic substances from C. alata may be responsible for its growth inhibitory properties.
KW - Cassia alata
KW - eco-friendly weed management
KW - phytotoxic substances
KW - rutin
KW - syringone
UR - http://www.scopus.com/inward/record.url?scp=85063946188&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063946188&partnerID=8YFLogxK
U2 - 10.1080/09064710.2019.1603322
DO - 10.1080/09064710.2019.1603322
M3 - Article
AN - SCOPUS:85063946188
JO - Acta Agriculturae Scandinavica - Section B Soil and Plant Science
JF - Acta Agriculturae Scandinavica - Section B Soil and Plant Science
SN - 0906-4710
ER -