Correlation of Phenylalanine ammonia lyase (PAL) and Tyrosine ammonia lyase (TAL) activities to phenolics and curcuminoid content in ginger and its wild congener, Zingiber zerumbet following Pythium myriotylum infection

Ganapathy, Gopinath; Keerthi, D.; Nair, R. Aswati; Pillai, Padmesh P.

doi:10.1007/s10658-016-0865-2

Cited by 30 publications

(15 citation statements)

References 59 publications

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“…The branches downstream of phenylalanine metabolism mainly include the lignin synthesis and flavonoid synthesis pathways, which produce phenylpropanoid derivatives such as coumarin, flavonol, and lignin. These phenylpropanoid metabolites act as plant antitoxins, cell wall structural elements, and signal transduction molecules and play important roles in plant disease resistance (Ganapathy et al 2016; Lozoya-Saldana et al 2007; Jubault et al 2013). In addition, the metabolism of alpha-linolenic acid, which is associated with the processing of jasmonic acid (JA), showed a significant accumulation in TeQing at 24 h. This finding suggests that primary metabolism is involved in the resistance process at the beginning of AG1 IA infection and that JA plays an important role at 24 h and thereafter.…”

Section: Discussionmentioning

confidence: 99%

Comparison of gene co-networks reveals the molecular mechanisms of the rice (Oryza sativa L.) response to Rhizoctonia solani AG1 IA infection

Zhang

Zhao

et al. 2018

Funct Integr Genomics

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Rhizoctonia solani causes rice sheath blight, an important disease affecting the growth of rice (Oryza sativa L.). Attempts to control the disease have met with little success. Based on transcriptional profiling, we previously identified more than 11,947 common differentially expressed genes (TPM > 10) between the rice genotypes TeQing and Lemont. In the current study, we extended these findings by focusing on an analysis of gene co-expression in response to R. solani AG1 IA and identified gene modules within the networks through weighted gene co-expression network analysis (WGCNA). We compared the different genes assigned to each module and the biological interpretations of gene co-expression networks at early and later modules in the two rice genotypes to reveal differential responses to AG1 IA. Our results show that different changes occurred in the two rice genotypes and that the modules in the two groups contain a number of candidate genes possibly involved in pathogenesis, such as the VQ protein. Furthermore, these gene co-expression networks provide comprehensive transcriptional information regarding gene expression in rice in response to AG1 IA. The co-expression networks derived from our data offer ideas for follow-up experimentation that will help advance our understanding of the translational regulation of rice gene expression changes in response to AG1 IA.Electronic supplementary materialThe online version of this article (10.1007/s10142-018-0607-y) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Comparison of gene co-networks reveals the molecular mechanisms of the rice (Oryza sativa L.) response to Rhizoctonia solani AG1 IA infection

Zhang

Zhao

et al. 2018

Funct Integr Genomics

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“…13 PAL has been proven to be the first critical enzyme of the phenolic metabolism, it catalyzes phenylalanine to cinnamic acid which can then be transferred into phenolic compounds by subsequent metabolism. 8 Variations of PAL activities in both treatments are shown in Fig. 6.…”

Section: Ppo Pod and Pal Activitiesmentioning

confidence: 95%

“…These operations could cause the physiological and biochemical changes of lily bulbs such as ethylene production and nutrient loss . Minimally processed lily bulbs were more vulnerable to surface browning due to destructive regionalization of many enzymes and phenolic compounds . Also, microbial contamination including fungal and bacterial diseases could cause the quality reduction of lily bulbs …”

Section: Introductionmentioning

confidence: 99%

“…7 Minimally processed lily bulbs were more vulnerable to surface browning due to destructive regionalization of many enzymes and phenolic compounds. 8,9 Also, microbial contamination including fungal and bacterial diseases could cause the quality reduction of lily bulbs. 10 To delay the quality deterioration of fruits and vegetables, the technologies including physical, chemical and biopreservation methods have been studied.…”

Section: Introductionmentioning

confidence: 99%

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Orthogonal array design for optimization of phenyllactic acid–sodium alginate blend coating and its effect on the browning and quality of minimally processed lily bulbs

et al. 2019

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BACKGROUND In order to develop active packaging of lily products, we for the first time investigated the effects of phenyllactic acid (PLA) incorporated into a sodium alginate (SA)‐based coating on the quality of minimally processed lily bulbs stored at 4 °C for 15 days. RESULTS L9 (34) orthogonal array design showed that the optimal concentrations of PLA, SA and glycerinum were 0.03, 0.03 and 0.05 mol L−1, respectively, to prepare a blend coating. It was noticed that a PLA–SA blend coating treatment could inhibit browning and maintain the firmness and ascorbic acid of minimally processed lily bulbs. Compared with the control, polyphenol oxidase (PPO), peroxidase (POD) and phenylalanine ammonia‐lyase (PAL) activities of PLA–SA blend coating treated minimally processed lily bulbs reduced by about 31%, 21% and 29% on the 15th day, respectively. Total phenolic and quinone contents decreased, respectively, by 16% and 55% at the same time. Moreover, PLA–SA blend coating treatment eliminated the accumulation of malonaldehyde (MDA) while inhibiting microbial growth of minimally processed lily bulbs. CONCLUSIONS These results showed PLA–SA blend coating could effectively maintain quality of minimally processed lily bulbs stored at 4 °C, and it might be a prospective technology. © 2018 Society of Chemical Industry

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“…Previously, constitutive expression of heterologous PAL transgenes in tobacco (Nicotiana tabacum) and A. thaliana resulted in plants resistant to multiple pathogens (Kim and Hwang 2014;Way et al 2011). PAL is well-known to be associated with resistance to pathogens (Ganapathy et al 2016;Wojtasik et al 2016). 4CL has also been associated with defense responses to pathogens (Reinold and Hahlbrock 1996), whereas C3H has been shown to be involved in responses during colonization by beneficial microorganisms (Battini et al 2016).…”

Section: Construct Linementioning

confidence: 99%

Response of Sorghum Enhanced in Monolignol Biosynthesis to Stalk Rot Pathogens

et al. 2019

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To increase phenylpropanoid constituents and energy content in the versatile C4 grass sorghum (Sorghum bicolor [L.] Moench), sorghum genes for proteins related to monolignol biosynthesis were overexpressed: SbMyb60 (transcriptional activator), SbPAL (phenylalanine ammonia lyase), SbCCoAOMT (caffeoyl coenzyme A [CoA] 3-O-methyltransferase), Bmr2 (4-coumarate:CoA ligase), and SbC3H (coumaroyl shikimate 3-hydroxylase). Overexpression lines were evaluated for responses to stalk pathogens under greenhouse and field conditions. Greenhouse-grown plants were inoculated with Fusarium thapsinum (Fusarium stalk rot) and Macrophomina phaseolina (charcoal rot), which cause yield-reducing diseases. F. thapsinum-inoculated overexpression plants had mean lesion lengths not significantly different than wild-type, except for significantly smaller lesions on two of three SbMyb60 and one of two SbCCoAOMT lines. M. phaseolina-inoculated overexpression lines had lesions not significantly different from wild-type except one SbPAL line (of two lines studied) with mean lesion lengths significantly larger. Field-grown SbMyb60 and SbCCoAOMT overexpression plants were inoculated with F. thapsinum. Mean lesions of SbMyb60 lines were similar to wild-type, but one SbCCoAOMT had larger lesions, whereas the other line was not significantly different than wild-type. Because overexpression of SbMyb60, Bmr2, or SbC3H may not render sorghum more susceptible to stalk rots, these lines may provide sources for development of sorghum with increased phenylpropanoid concentrations.

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Correlation of Phenylalanine ammonia lyase (PAL) and Tyrosine ammonia lyase (TAL) activities to phenolics and curcuminoid content in ginger and its wild congener, Zingiber zerumbet following Pythium myriotylum infection

Cited by 30 publications

References 59 publications

Comparison of gene co-networks reveals the molecular mechanisms of the rice (Oryza sativa L.) response to Rhizoctonia solani AG1 IA infection

Comparison of gene co-networks reveals the molecular mechanisms of the rice (Oryza sativa L.) response to Rhizoctonia solani AG1 IA infection

Orthogonal array design for optimization of phenyllactic acid–sodium alginate blend coating and its effect on the browning and quality of minimally processed lily bulbs

Response of Sorghum Enhanced in Monolignol Biosynthesis to Stalk Rot Pathogens

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