Publications by authors named "M D Kolomiets"
Article Synopsis
- Plants release volatile organic compounds (VOCs) like green leaf volatiles (GLVs) and pentyl leaf volatiles (PLVs) to communicate and respond to stressors, with PLVs being less studied despite their significance.
- Disrupting the maize-specific lipoxygenase ZmLOX6 reduces the production of PLVs, leading to decreased resistance against fall armyworm and fungal pathogens, as well as altered metabolite profiles.
- The study highlights a potential competition between the production pathways of PLVs and GLVs, showing that enhancing PLV levels can improve plant resistance to herbivores and specific pathogens while revealing the divergent roles of these compounds in plant defense mechanisms.
Article Synopsis
- Jasmonic acid (JA), a plant hormone linked to defense against insect feeding, was found not to influence larval growth, survival, or development speed in western corn rootworm (WCR) when present in low levels in maize.* -
- A study used a double mutant of maize (opr7opr8) that does not produce JA to directly test JA's role in resistance to WCR and found no significant differences in the insects' growth or damage caused to roots.* -
- However, there was a notable reduction in shoot growth related to WCR feeding in the JA-deficient mutant, suggesting JA plays a role in aboveground responses to herbivory rather than root resistance.*
Soil-borne spp. have been extensively studied for their biocontrol activities against pathogens and growth promotion ability in plants. However, the beneficial effect of on inducing resistance against insect herbivores has been underexplored.
View Article and Find Full Text PDFExtensive genome structure variations, such as copy number variations (CNVs) and presence/absence variations, are the basis for the remarkable genetic diversity of maize; however, the effect of CNVs on maize herbivory defense remains largely underexplored. Here, we report that the naturally occurring duplication of the maize 9-lipoxygenase gene leads to increased resistance of maize to herbivory by fall armyworms (FAWs). Previously, we showed that ZmLOX5-derived oxylipins are required for defense against chewing insect herbivores and identified several inbred lines, including Yu796, that contained duplicated CNVs of , referred to as .
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