Role of Phenolics in Plant Defense Against Insect Herbivory

Rehman, Farha; Khan, Fareed Ahmad; Badruddin, S. M. A.

doi:10.1007/978-3-642-23394-4_65

Cited by 47 publications

(33 citation statements)

References 25 publications

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“…Its possible positive influence on the feeding behavior of C. pruni deserves further investigation, because this metabolite was also detected in phloem sap of Prunus domestica but not in conifers, which are no suitable hosts for feeding and development of C. pruni’s offspring (Gallinger and Gross 2018 ). Hydroxycinnamic acids are commonly known as constitutive plant defenses against herbivores (Rehman et al 2012 ). For example, chlorogenic acid is related to thrips resistance in plants (Leiss et al 2009 ; Leiss et al 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Phloem Metabolites of Prunus Sp. Rather than Infection with Candidatus Phytoplasma Prunorum Influence Feeding Behavior of Cacopsylla pruni Nymphs

Gallinger

Gross

2020

J Chem Ecol

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Phytoplasmas are specialized small bacteria restricted to the phloem tissue and spread by hemipterans feeding on plant sieve tube elements. As for many other plant pathogens, it is known that phytoplasmas alter the chemistry of their hosts. Most research on phytoplasma-plant interactions focused on the induction of plant volatiles and phytohormones. Little is known about the influence of phytoplasma infections on the nutritional composition of phloem and consequences on vector behavior and development. The plum psyllid Cacopsylla pruni transmits 'Candidatus Phytoplasma prunorum', the causing agent of European Stone Fruit Yellows (ESFY). While several Prunus species are susceptible for psyllid feeding, they show different responses to the pathogen. We studied the possible modulation of plant-insect interactions by bacteria-induced changes in phloem sap chemistry. Therefore, we sampled phloem sap from phytoplasma-infected and non-infected Prunus persica and Prunus insititia plants, which differ in their susceptibility to ESFY and psyllid feeding. Furthermore, the feeding behavior and development of C. pruni nymphs was compared on infected and non-infected P. persica and P. insititia plants. Phytoplasma infection did not affect phloem consumption by C. pruni nymphs nor their development time. In contrast, the study revealed significant differences between P. insititia and P. persica in terms of both phloem chemistry and feeding behavior of C. pruni nymphs. Phloem feeding phases were four times longer on P. insititia than on P. persica, resulting in a decreased development time and higher mortality of vector insects on P. persica plants. These findings explain the low infestation rates of peach cultivars with plum psyllids commonly found in field surveys.

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Section: Discussionmentioning

confidence: 99%

Phloem Metabolites of Prunus Sp. Rather than Infection with Candidatus Phytoplasma Prunorum Influence Feeding Behavior of Cacopsylla pruni Nymphs

Gallinger

Gross

2020

J Chem Ecol

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“…The third category shows clear genotypic differences in the phenolic profiles that suggest either treatment-induced or constitutive resistance difference between LA3952, and the susceptible CM. Variation of metabolite levels with respect to genotype and treatment were observed among studied nine phenolic metabolites, and p-coumaric acid may confer the resistance in RIL LA3952 by associated plant defense mechanism [ 30 , 31 , 32 ].…”

Section: Discussionmentioning

confidence: 99%

Tomato Metabolic Changes in Response to Tomato-Potato Psyllid (Bactericera cockerelli) and Its Vectored Pathogen Candidatus Liberibacter solanacearum

Lee

Awika²,

Jayaprakasha

et al. 2020

Plants

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The bacterial pathogen ‘Candidatus Liberibacter solanacearum’ (Lso) is transmitted by the tomato potato psyllid (TPP), Bactericera cockerelli, to solanaceous crops. In the present study, the changes in metabolic profiles of insect-susceptible (cv CastleMart) and resistant (RIL LA3952) tomato plants in response to TPP vectoring Lso or not, were examined after 48 h post infestation. Non-volatile and volatile metabolites were identified and quantified using headspace solid-phase microextraction equipped with a gas chromatograph-mass spectrometry (HS-SPME/GC-MS) and ultra-high pressure liquid chromatography coupled to electrospray quadrupole time-of-flight mass spectrometry (UPLC/ESI-HR-QTOFMS), respectively. Partial least squares-discriminant analysis (PLS-DA) was used to define the major uncorrelated metabolite components assuming the treatments as the correlated predictors. Metabolic changes in various classes of metabolites, including volatiles, hormones, and phenolics, were observed in resistant and susceptible plants in response to the insects carrying the pathogen or not. The results suggest the involvement of differentially regulated and, in some cases, implicates antagonistic metabolites in plant defensive signaling. Upon validation, the identified metabolites could be used as markers to screen and select breeding lines with enhanced resistance to reduce economic losses due to the TPP-Lso vector-pathogen complex in Solanaceous crops.

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“…Otro compuesto que se observó fue la himecromona un tipo de cumarina. Las cumarinas son compuestos fenólicos que se han relacionado en la defensa contra el ataque de insectos y hongos en las plantas (Zobel y Brown, 1995;Hoult y Payá, 1996;Rehman et al, 2012). Por otro lado, no se han encontrado reportes de la producción de imidas como la alfa-metil-alfa fenilsuccinimida en plantas.…”

Section: Variación Estacional En La Composición De Resinas Y Aceites unclassified

Variación estacional en la composición química de resinas y aceites esenciales de Liquidambar styraciflua de Hidalgo, México

et al. 2016

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ResumenLa resina de Liquidambar styraciflua (Altingiaceae) fue colectada en temporada de sequía y lluvia durante 2013, en las comunidades Santa Lucía, Tianguistengo, Xochimilco y Xalapa en el estado de Hidalgo, México. El aceite esencial de la resina se obtuvo por hidrodestilación. Xalapa obtuvo el mejor rendimiento de aceite esencial con 9.3 %, en época de sequía. La resina y el aceite se analizaron por cromatografía en capa fina y cromatografía de gases acoplada a espectrometría de masas, respectivamente. El análisis por cromatografía en capa fina mostró mayor número de compuestos en época de sequía. Se calculó la relación de frentes en ambas temporadas, algunos valores coincidieron con los valores reportados para los ácidos cinámico y benzoico, así como del cinamato de cinamilo. Un total de 52 compuestos fueron encontrados por cromatografía de gases acoplada a espectrometría de masas, los cuales variaron en cada temporada. Los compuestos mayoritarios correspondieron al alcohol dihidro cinámico, estireno, cardeno, alcohol de cinamilo y alfa-pineno. Tres de los compuestos encontrados han sido reportados en el aceite esencial de hojas y tallos de L. styraciflua, estos son el beta-mirceno, allo-aromadendreno y gama-cadineno. Los compuestos principales encontrados en los aceites esenciales coinciden entre las diferentes procedencias, por lo que el aprovechamiento comercial del styrax mexicano debe ser viable desde el punto de vista de su composición. Palabras clave: cromatografía de gases-espectrometría de masas, cromatografía en capa fina, temporada de lluvia, temporada de sequía, Liquidambar. Seasonal Variation in the Chemical Composition of Resins and Essentials Oils of Liquidambar styraciflua from Hidalgo, Mexico AbstractThe resin of Liquidambar styraciflua (Altingiaceae) was collected during the dry and rainy season of 2013, in the communities of Santa Lucia, Tianguistengo, Xochimilco and Xalapa in Hidalgo, Mexico. The essential oil from the resin was obtained by hydro-distillation. Resin samples from Xalapa during the dry season produced the highest amount of essential oil (9.3 %). Resin and oils were analyzed through thin layer chromatography and gas chromatography-mass spectrometry, respectively. The thin layer chromatography analysis showed a higher number of compounds during the dry season. The retardation factors were calculated for both seasons some values agreed with reports for cinnamic and benzoic acids, also for cinnamyl cinnamate. A total of 52 compounds were found by the gas chromatography-mass spectrometry and varied with the season. The major compounds were dihydro cinnamic alcohol, styrene, cardene, cinnamyl alcohol and alpha-pinene. Three of the compounds, namely beta-myrcene, allo-aromadendrene and gamma-cadinene, had been reported only for essential oil from leaves and stem of L. styraciflua. The main essential oils coincide between the different sources, so the commercial use of Mexican styrax should be viable from the standpoint of its composition.

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Role of Phenolics in Plant Defense Against Insect Herbivory

Abstract: Several secondary metabolites synthesized in plants have significant

Cited by 47 publications

References 25 publications

Phloem Metabolites of Prunus Sp. Rather than Infection with Candidatus Phytoplasma Prunorum Influence Feeding Behavior of Cacopsylla pruni Nymphs

Phloem Metabolites of Prunus Sp. Rather than Infection with Candidatus Phytoplasma Prunorum Influence Feeding Behavior of Cacopsylla pruni Nymphs

Tomato Metabolic Changes in Response to Tomato-Potato Psyllid (Bactericera cockerelli) and Its Vectored Pathogen Candidatus Liberibacter solanacearum

Variación estacional en la composición química de resinas y aceites esenciales de Liquidambar styraciflua de Hidalgo, México

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