<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Plant-parasitic nematodes are important agricultural pests and often cause serious crop losses. Novel, environmental friendly nematicides are urgently needed because of the harmful effects of some existing nematicides on human health. 5-Aminolevulinic acid (ALA) was reported as a potential biodegradable herbicide, insecticide, or plant-growth promoting agent. Lack of information on ALA against plant-parasitic nematodes prompted this investigation to determine the effects of ALA on <italic>Meloidogyne incognita</italic>, <italic>Heterodera glycines</italic>, <italic>Pratylenchus coffeae</italic>, and <italic>Bursaphelenchus xylophilus</italic>. A series of in vitro assays and one greenhouse trial were conducted to examine the nematicidal effects of ALA. The results demonstrated that ALA exhibited a strong effect of suppression against the four nematodes tested. ALA also inhibited hatching of <italic>M. incognita</italic> and <italic>H. glycines</italic>. Results from the greenhouse experiment indicated that treatment of soil with 6.0 mM ALA significantly reduced the root-gall index (RGI) and egg mass number per root system compared with the
uninoculated control (<italic>P</italic> # 0.05). The metabolism assays indicated that ALA treatment significantly altered the nematode metabolism
including the total protein production, malondialdehyde (MDA) content, and oxidase activities. This study suggested that ALA is a promising nematicide against plant-parasitic nematodes.</p>
</abstract>

Plant-parasitic nematodes are important agricultural pests and often cause serious crop losses. Novel, environmental friendly nematicides are urgently needed because of the harmful effects of some existing nematicides on human health. 5-Aminolevulinic acid (ALA) was reported as a potential biodegradable herbicide, insecticide, or plant-growth promoting agent. Lack of information on ALA against plant-parasitic nematodes prompted this investigation to determine the effects of ALA on Meloidogyne incognita, Heterodera glycines, Pratylenchus coffeae, and Bursaphelenchus xylophilus. A series of in vitro assays and one greenhouse trial were conducted to examine the nematicidal effects of ALA. The results demonstrated that ALA exhibited a strong effect of suppression against the four nematodes tested. ALA also inhibited hatching of M. incognita and H. glycines. Results from the greenhouse experiment indicated that treatment of soil with 6.0 mM ALA significantly reduced the root-gall index (RGI) and egg mass number per root system compared with the
uninoculated control (P # 0.05). The metabolism assays indicated that ALA treatment significantly altered the nematode metabolism
including the total protein production, malondialdehyde (MDA) content, and oxidase activities. This study suggested that ALA is a promising nematicide against plant-parasitic nematodes.

Nematicidal Effects of 5-Aminolevulinic Acid on Plant-Parasitic Nematodes

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Nematicidal Effects of 5-Aminolevulinic Acid on Plant-Parasitic Nematodes"}

Plant-parasitic nematodes are important agricultural pests and often cause serious crop losses. Novel, environmental friendly nematicides are urgently needed...

Nematicidal Effects of 5-Aminolevulinic Acid on Plant-Parasitic Nematodes

Publié en ligne: 05 déc. 2017

Pages: 168 - 176

Reçu: 09 janv. 2017

DOI: https://doi.org/10.21307/jofnem-2017-075

Mots clés
nematicide, oxidase activity, .

© 2017 Feixue Cheng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Nematicidal Effects of 5-Aminolevulinic Acid on Plant-Parasitic Nematodes

Publié en ligne: 05 déc. 2017

Pages: 168 - 176

Reçu: 09 janv. 2017

DOI: https://doi.org/10.21307/jofnem-2017-075

Mots clésnematicide, oxidase activity, .

© 2017 Feixue Cheng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
nematicide, oxidase activity, .