Floral scent: Regulation and role of MYB transcription factors

Ramya, Mummadireddy; Kwon, Oh Keun; An, Hye Ryun; Park, Pil Man; Baek, Yun Su; Park, Pue Hee

doi:10.1016/j.phytol.2016.12.015

Cited by 41 publications

(31 citation statements)

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“…In flowers, volatile production transcription factors of especially the MYB family have been demonstrated to regulate biosynthesis, especially of the benzenoids/phenylpropanoids, as reviewed by Ramya et al . (). The importance of MYB TFs in regulating flower scent is supported by the discovery of a MYB TF, LhODO1, in lily which seems to regulate volatile benzenoid/phenylpropanoid production (Yoshida et al ., ).…”

Section: Regulation Of Voc Biosynthesismentioning

confidence: 97%

“…The enzyme responsible for geraniol biosynthesis in rose, for example, turned out not to be a monoterpene synthase but a Nudix hydrolase (a diphosphohydrolase) (Magnard et al ., ). More function‐based overviews of volatile biosynthesis are given in papers on the role of volatiles in plant−herbivore interaction including the perception by plants of herbivory and downstream signalling (Stahl et al ., ), the role of volatiles in plant−microbe interaction (Sharifi et al ., ) and on flower volatile biosynthesis (Ramya et al ., ; Wong et al ., ). Ryu and co‐workers review the induction of volatiles by micro‐organisms and the effects that these volatiles have on plants, showing that microbes are true manipulators of their plant host (Sharifi et al ., ).…”

Section: Voc Biosynthesismentioning

confidence: 98%

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The role of volatiles in plant communication

et al. 2019

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SummaryVolatiles mediate the interaction of plants with pollinators, herbivores and their natural enemies, other plants and micro‐organisms. With increasing knowledge about these interactions the underlying mechanisms turn out to be increasingly complex. The mechanisms of biosynthesis and perception of volatiles are slowly being uncovered. The increasing scientific knowledge can be used to design and apply volatile‐based agricultural strategies.

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Section: Regulation Of Voc Biosynthesismentioning

confidence: 97%

Section: Voc Biosynthesismentioning

confidence: 98%

The role of volatiles in plant communication

et al. 2019

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“…Entre estos, las flores son los principales órganos de la planta que emiten COVs, emisión que se realiza en varios estadíos del desarrollo floral. Generalmente, el nivel de emisión incrementa acompañando la receptividad de la flor, o también cuando esta se encuentra bajo estrés biótico, consecuentemente disminuyendo en estadíos de senescencia (Ramya et al 2017). La emisión de los COVs florales se da a través de glándulas específicas llamadas osmóforos, que se pueden encontrar en distintas partes de la flor, tales como pétalos, brácteas, pedúnculo, estambres, pistilo y/o sépalos (Effmert et al 2006).…”

Section: Producción Y Emisión De Covs Por Plantasunclassified

El Rol De Los Compuestos Orgánicos Volátiles Florales en Las Interacciones Planta-Insecto

2018

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Los compuestos orgánicos volátiles (COVs) producidos por plantas son productos secundarios de su metabolismo y están involucrados en una gran variedad de funciones ecológicas. Cuando presentes en las flores, los perfiles de los COVs no sólo están asociados con mutualismos, como la polinización, sino también con procesos antagónicos, como la herbivoría o las señales deshonestas. Su presencia, perfiles y concentraciones en las flores están bajo selección mediada por el compromiso entre supervivencia y reproducción de las plantas, es decir por las interacciones antagonistas y mutualistas mediadas por los COVs. En las interacciones mutualistas, los COVs pueden actuar sinérgicamente con señales visuales asegurando la atención de los polinizadores durante períodos más largos y/o a mayores distancias. A pesar del papel fundamental de las fragancias florales en la biología reproductiva, se han realizado pocos estudios que aborden la evolución de este rasgo floral. Esta revisión destaca la importancia de los volátiles florales en las interacciones ecológicas, principalmente en las interacciones planta-insecto. Palabras-clave: COVs florales; herbívoros; polinizadores; señal deshonesta; señal honesta. THE ROLE OF FLORAL VOLATILE ORGANIC COMPOUNDS IN PLANT-INSECT INTERACTIONS. Volatile Organic Compounds (VOCs) produced by plants are secondary products of their metabolism and are related to a wide range of ecological functions. When present in flowers, VOCs profiles are not only associated with mutualisms such as pollination, but also to antagonistic processes such as herbivory or dishonest signaling. Their presence, profiles and concentrations in flowers are under selection mediated by the trade-off between survivorship and reproduction of plants, i.e. antagonist and mutualist interactions mediated by VOCs. In the mutualistic interactions, VOCs can act synergistically with visual signals ensuring the attention of pollinators for longer periods and/or distances. Despite the fundamental role of floral scents on the reproductive biology, few studies addressing the evolution of this floral trait have been reported. This review highlights the importance of floral volatiles on ecological interactions, mainly on plant-insect interactions.

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“…Floral odors generally are a blend of several chemical substances that fall into three categories: terpenoids, phenylpropanoids/benzenoids, and fatty acid derivatives (Dudareva and Negre, 2005;. Although the pathways leading to the final products have not been completely characterized, common modifications such as hydroxylation, acetylation, and methylation have been described (Amrad et al, 2016;Pichersky, 2000, 2006;Ramya et al, 2017).…”

mentioning

confidence: 99%

“…A few floral fragrance genes have been identified from plants with very fragrant flowers (e.g., Clarkia breweri and Antirrhinum majus; Dudareva et al, 1996;Vainstein et al, 2001). Verdonk et al (2005) isolated a transcription factor that regulates floral scent biosynthesis in Petunia, and the large MYB transcription factor family has been implicated in fragrance emission regulation in other plants as well (Ramya et al, 2017).…”

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confidence: 99%

Fragrance Analysis of Two Scented Hippeastrum Species

Meerow

Reed

Dunn

et al. 2017

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We report the analysis of floral fragrance volatiles from two scented amaryllis species, Hippeastrum brasilianum and Hippeastrum parodii. Whereas the headspace of H. brasilianum is dominated by a large peak of (Z)-β-ocimene (88% of total peak area), H. parodii has two large peaks comprising 78%, identified as eucalyptol (1,8-cineole, 30%) and (Z)-β-ocimene (48%). The two species also differ in other constituent compounds. Overall, H. parodii, although producing less total volatile organic compounds (VOCs), has a more diverse bouquet. This species also exhibits an inverse pattern of emission between eucalyptol and β-ocimene, both daily and across the 4-day period from anthesis to senescence of the flower. We compare our results with reports for a complex amaryllis hybrid and a bat-pollinated species, Hippeastrum calyptratum. The hybrid had a very different complement of emissions. The bat-pollinated species shared some of the same constituent volatiles as H. brasilianum and H. parodii, but at lower percentages, and emitted a more diverse assortment of compounds. We conclude that both H. brasilianum and H. parodii attract lepidopteran pollinators but suggest that H. parodii may also attract other insects. We briefly discuss floral fragrance from the perspective of breeding amaryllis.

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Floral scent: Regulation and role of MYB transcription factors

Cited by 41 publications

References 57 publications

The role of volatiles in plant communication

The role of volatiles in plant communication

El Rol De Los Compuestos Orgánicos Volátiles Florales en Las Interacciones Planta-Insecto

Fragrance Analysis of Two Scented Hippeastrum Species

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