Abstract
The creeping weed, Chrysopogon aciculatus (Retz.) Trin., is widely known for its use as folk medicine, while its phytotoxic potential has not been examined. Therefore, we carried out an investigation into the phytotoxic potential of C. aciculatus to identify phytotoxic substances. C. aciculatus extracts showed inhibitory effects on shoot and root growth of cress, lettuce, rapeseed, and Italian ryegrass. Inhibition was both species-dependent and concentration-dependent. Two substances, (9S,10E,12Z)-9-hydroxyoctadeca-10,12-dienoic acid (9-HO-ODDEA) and rhizopycnin A, were isolated using chromatographies and characterized by spectral analysis. 9-HO-ODDEA retarded shoot and root growth of cress at concentrations higher than 1.0 and 0.3 mM, respectively, while on cress seedling by rhizopycnin A, the inhibition began from 1.0 mM. The concentrations needed for 50% inhibition of the shoot and root growth of test plants ranged from 1.71–2.31, and 0.71–0.72 mM for 9-HO-ODDEA and rhizopycnin A, respectively. These results indicate that these substances may contribute, to a certain extent, to the phytotoxic activity of C. aciculatus.
| Original language | English |
|---|---|
| Pages (from-to) | 51-58 |
| Number of pages | 8 |
| Journal | Weed Biology and Management |
| Volume | 19 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2019 Jun 1 |
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Keywords
- Chrysopogon aciculatus
- creeping weed
- organic agriculture
- phytotoxic substance
ASJC Scopus subject areas
- Agronomy and Crop Science
Cite this
Phytotoxic potential of Chrysopogon aciculatus (Retz.) Trin. (Poaceae). / Islam, Md Shafiqul; Zaman, Farhana; Iwasaki, Arihiro; Suenaga, Kiyotake; Kato-Noguchi, Hisashi.
In: Weed Biology and Management, Vol. 19, No. 2, 01.06.2019, p. 51-58.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phytotoxic potential of Chrysopogon aciculatus (Retz.) Trin. (Poaceae)
AU - Islam, Md Shafiqul
AU - Zaman, Farhana
AU - Iwasaki, Arihiro
AU - Suenaga, Kiyotake
AU - Kato-Noguchi, Hisashi
PY - 2019/6/1
Y1 - 2019/6/1
N2 - The creeping weed, Chrysopogon aciculatus (Retz.) Trin., is widely known for its use as folk medicine, while its phytotoxic potential has not been examined. Therefore, we carried out an investigation into the phytotoxic potential of C. aciculatus to identify phytotoxic substances. C. aciculatus extracts showed inhibitory effects on shoot and root growth of cress, lettuce, rapeseed, and Italian ryegrass. Inhibition was both species-dependent and concentration-dependent. Two substances, (9S,10E,12Z)-9-hydroxyoctadeca-10,12-dienoic acid (9-HO-ODDEA) and rhizopycnin A, were isolated using chromatographies and characterized by spectral analysis. 9-HO-ODDEA retarded shoot and root growth of cress at concentrations higher than 1.0 and 0.3 mM, respectively, while on cress seedling by rhizopycnin A, the inhibition began from 1.0 mM. The concentrations needed for 50% inhibition of the shoot and root growth of test plants ranged from 1.71–2.31, and 0.71–0.72 mM for 9-HO-ODDEA and rhizopycnin A, respectively. These results indicate that these substances may contribute, to a certain extent, to the phytotoxic activity of C. aciculatus.
AB - The creeping weed, Chrysopogon aciculatus (Retz.) Trin., is widely known for its use as folk medicine, while its phytotoxic potential has not been examined. Therefore, we carried out an investigation into the phytotoxic potential of C. aciculatus to identify phytotoxic substances. C. aciculatus extracts showed inhibitory effects on shoot and root growth of cress, lettuce, rapeseed, and Italian ryegrass. Inhibition was both species-dependent and concentration-dependent. Two substances, (9S,10E,12Z)-9-hydroxyoctadeca-10,12-dienoic acid (9-HO-ODDEA) and rhizopycnin A, were isolated using chromatographies and characterized by spectral analysis. 9-HO-ODDEA retarded shoot and root growth of cress at concentrations higher than 1.0 and 0.3 mM, respectively, while on cress seedling by rhizopycnin A, the inhibition began from 1.0 mM. The concentrations needed for 50% inhibition of the shoot and root growth of test plants ranged from 1.71–2.31, and 0.71–0.72 mM for 9-HO-ODDEA and rhizopycnin A, respectively. These results indicate that these substances may contribute, to a certain extent, to the phytotoxic activity of C. aciculatus.
KW - Chrysopogon aciculatus
KW - creeping weed
KW - organic agriculture
KW - phytotoxic substance
UR - http://www.scopus.com/inward/record.url?scp=85067236670&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067236670&partnerID=8YFLogxK
U2 - 10.1111/wbm.12175
DO - 10.1111/wbm.12175
M3 - Article
VL - 19
SP - 51
EP - 58
JO - Weed Biology and Management
JF - Weed Biology and Management
SN - 1444-6162
IS - 2
ER -