Optimization of Myrothecium roridum tode: fries phytotoxin production and bioactivity on water hyacinth (Eichhornia crassipes)

Wahab Oluwanisola Okunowo; Akinniyi Adediran Osuntoki; Adedotun Adeyinka Adekunle; George Olabode Gbenle; Hamed K. Abbas; Wayne Thomas Shier

doi:10.1080/15569543.2018.1564772

Optimization of Myrothecium roridum tode: fries phytotoxin production and bioactivity on water hyacinth (Eichhornia crassipes)

Wahab Oluwanisola Okunowo, Akinniyi Adediran Osuntoki, Adedotun Adeyinka Adekunle, George Olabode Gbenle, Hamed K. Abbas, Wayne Thomas Shier

Medicinal Chemistry

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Phytotoxin production by Myrothecium roridum Tode: Fries (IMI 394934) and in vitro bioactivity on water hyacinth leaves (WHL) were evaluated. Phytotoxin produced caused necrosis of WHL three days postapplication. Potato carrot broth and WHL broth formulations gave the highest phytotoxin production in culture. Phytotoxin production was light-dependent and peaked at pH 4.5. Xylose and glutamine were the best carbon and nitrogen sources, respectively. The phytotoxin was thermostable, and phytotoxicity was pH-dependent, but photoperiod-independent. Bioassay-guided fractionation indicated the active phytotoxin was roridin A. Phytotoxicity of roridin A and roridin E was similar (p > 0.05) to paraquat used for water hyacinth control.

Original language	English (US)
Pages (from-to)	116-130
Number of pages	15
Journal	Toxin Reviews
Volume	40
Issue number	1
DOIs	https://doi.org/10.1080/15569543.2018.1564772
State	Published - 2021

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Publisher Copyright:
© 2019 Informa UK Limited, trading as Taylor & Francis Group.

Keywords

Herbicide
Myrothecium roridum
paraquat
phytotoxin
roridin
water hyacinth

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title = "Optimization of Myrothecium roridum tode: fries phytotoxin production and bioactivity on water hyacinth (Eichhornia crassipes)",

abstract = "Phytotoxin production by Myrothecium roridum Tode: Fries (IMI 394934) and in vitro bioactivity on water hyacinth leaves (WHL) were evaluated. Phytotoxin produced caused necrosis of WHL three days postapplication. Potato carrot broth and WHL broth formulations gave the highest phytotoxin production in culture. Phytotoxin production was light-dependent and peaked at pH 4.5. Xylose and glutamine were the best carbon and nitrogen sources, respectively. The phytotoxin was thermostable, and phytotoxicity was pH-dependent, but photoperiod-independent. Bioassay-guided fractionation indicated the active phytotoxin was roridin A. Phytotoxicity of roridin A and roridin E was similar (p > 0.05) to paraquat used for water hyacinth control.",

keywords = "Herbicide, Myrothecium roridum, paraquat, phytotoxin, roridin, water hyacinth",

author = "Okunowo, {Wahab Oluwanisola} and Osuntoki, {Akinniyi Adediran} and Adekunle, {Adedotun Adeyinka} and Gbenle, {George Olabode} and Abbas, {Hamed K.} and Shier, {Wayne Thomas}",

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year = "2021",

doi = "10.1080/15569543.2018.1564772",

language = "English (US)",

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T2 - fries phytotoxin production and bioactivity on water hyacinth (Eichhornia crassipes)

AU - Okunowo, Wahab Oluwanisola

AU - Osuntoki, Akinniyi Adediran

AU - Adekunle, Adedotun Adeyinka

AU - Gbenle, George Olabode

AU - Abbas, Hamed K.

AU - Shier, Wayne Thomas

PY - 2021

Y1 - 2021

N2 - Phytotoxin production by Myrothecium roridum Tode: Fries (IMI 394934) and in vitro bioactivity on water hyacinth leaves (WHL) were evaluated. Phytotoxin produced caused necrosis of WHL three days postapplication. Potato carrot broth and WHL broth formulations gave the highest phytotoxin production in culture. Phytotoxin production was light-dependent and peaked at pH 4.5. Xylose and glutamine were the best carbon and nitrogen sources, respectively. The phytotoxin was thermostable, and phytotoxicity was pH-dependent, but photoperiod-independent. Bioassay-guided fractionation indicated the active phytotoxin was roridin A. Phytotoxicity of roridin A and roridin E was similar (p > 0.05) to paraquat used for water hyacinth control.

AB - Phytotoxin production by Myrothecium roridum Tode: Fries (IMI 394934) and in vitro bioactivity on water hyacinth leaves (WHL) were evaluated. Phytotoxin produced caused necrosis of WHL three days postapplication. Potato carrot broth and WHL broth formulations gave the highest phytotoxin production in culture. Phytotoxin production was light-dependent and peaked at pH 4.5. Xylose and glutamine were the best carbon and nitrogen sources, respectively. The phytotoxin was thermostable, and phytotoxicity was pH-dependent, but photoperiod-independent. Bioassay-guided fractionation indicated the active phytotoxin was roridin A. Phytotoxicity of roridin A and roridin E was similar (p > 0.05) to paraquat used for water hyacinth control.

KW - Herbicide

KW - Myrothecium roridum

KW - paraquat

KW - phytotoxin

KW - roridin

KW - water hyacinth

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ER -

Optimization of Myrothecium roridum tode: fries phytotoxin production and bioactivity on water hyacinth (Eichhornia crassipes)

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Keywords

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