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Comparative analysis of sorghum (C4) and rice (C3) plant headspace volatiles induced by artificial herbivory
Osinde, Cyprian Sobhy, Islam S. Wari, David Dinh, Son Truong Hojo, Yuko Osibe, Dandy A. Shinya, Tomonori Tugume, Arthur K. Nsubuga, Anthony M. Galis, Ivan
Osinde, Cyprian
Sobhy, Islam S.
Wari, David
Dinh, Son Truong
Hojo, Yuko
Osibe, Dandy A.
Shinya, Tomonori
Tugume, Arthur K.
Nsubuga, Anthony M.
Galis, Ivan
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2023-08-10
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Abstract
Acute stress responses include release of defensive volatiles from herbivore-attacked plants. Here we used two closely related monocot species, rice as a representative C3 plant, and sorghum as a representative C4 plant, and compared their basal and stress-induced headspace volatile organic compounds (VOCs). Although both plants emitted similar types of constitutive and induced VOCs, in agreement with the close phylogenetic relationship of the species, several mono- and sesquiterpenes have been significantly less abundant in headspace of sorghum relative to rice. Furthermore, in spite of generally lower VOC levels, some compounds, such as the green leaf volatile (<i>Z</i>)-3-hexenyl acetate and homoterpene DMNT, remained relatively high in the sorghum headspace, suggesting that a separate mechanism for dispersal of these compounds may have evolved in this plant. Finally, a variable amount of several VOCs among three sorghum cultivars of different geographical origins suggested that release of VOCs could be used as a valuable resource for the increase of sorghum resistance against herbivores.
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Osinde, C., Sobhy, I. S., Wari, D., Dinh, S. T., Hojo, Y., Osibe, D. A., Shinya, T., Tugume, A. K., Nsubuga, A. M., & Galis, I. (2023). Comparative analysis of sorghum (C4) and rice (C3) plant headspace volatiles induced by artificial herbivory. Plant Signaling & Behavior, 18(1), article-number 2243064. https://doi.org/10.1080/15592324.2023.2243064
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Taylor & Francis
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Plant Signaling & Behavior
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Article
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en
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© 2023 The Author(s). Published with license by Taylor & Francis Group, LLC.
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1559-2316
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1559-2324
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The work was supported by the Japan Society for the Promotion of Science [13F03379, 20F20103, 21H02196]; Japan Society for the Promotion of Science [P20103]; MEXT Joint Research Program Japan Society for the Promotion of Science [P 13379]; Ohara Foundation in Japan.