Enrichment of carbon dioxide in the atmosphere increases the capsaicinoids content in Habanero peppers (<i>Capsicum chinense</i> Jacq.)

Garruña-Hernández, René; Monforte‐González, Miriam; Canto-Aguilar, Azucena; Vázquez‐Flota, Felipe; Orellana, Roger

doi:10.1002/jsfa.5904

Cited by 19 publications

(8 citation statements)

References 22 publications

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“…The average night temperature was 24±1°C. The latter were measured using data loggers (HOBO H08–004–02; Onset Computer Corp., Bourne, MA, USA) and Quantum sensors (LI–190SB; LI–COR, Lincoln, NE, USA) placed on top and inside of each chamber, as described previously [13].…”

Section: Methodsmentioning

confidence: 99%

Understanding the Physiological Responses of a Tropical Crop (Capsicum chinense Jacq.) at High Temperature

et al. 2014

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Temperature is one of the main environmental factors involved in global warming and has been found to have a direct effect on plants. However, few studies have investigated the effect of higher temperature on tropical crops. We therefore performed an experiment with a tropical crop of Habanero pepper (Capsicum Chinense Jacq.). Three growth chambers were used, each with 30 Habanero pepper plants. Chambers were maintained at a diurnal maximum air temperature (DMT) of 30 (chamber 1), 35 (chamber 2) and 40°C (chamber 3). Each contained plants from seedling to fruiting stage. Physiological response to variation in DMT was evaluated for each stage over the course of five months. The results showed that both leaf area and dry mass of Habanero pepper plants did not exhibit significant differences in juvenile and flowering phenophases. However, in the fruiting stage, the leaf area and dry mass of plants grown at 40°C DMT were 51 and 58% lower than plants at 30°C DMT respectively. Meanwhile, an increase in diurnal air temperature raised both stomatal conductance and transpiration rate, causing an increase in temperature deficit (air temperature – leaf temperature). Thus, leaf temperature decreased by 5°C, allowing a higher CO2 assimilation rate in plants at diurnal maximum air temperature (40°C). However, in CO2 measurements when leaf temperature was set at 40°C, physiological parameters decreased due to an increase in stomatal limitation. We conclude that the thermal optimum range in a tropical crop such as Habanero pepper is between 30 and 35°C (leaf temperature, not air temperature). In this range, gas exchange through stomata is probably optimal. Also, the air temperature–leaf temperature relationship helps to explain how temperature keeps the major physiological processes of Habanero pepper healthy under experimental conditions.

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Section: Methodsmentioning

confidence: 99%

Understanding the Physiological Responses of a Tropical Crop (Capsicum chinense Jacq.) at High Temperature

et al. 2014

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“…Meanwhile, light exposure using blue LEDs increased the capsaicinoid contents in C. annuum 'Cheonyang' (Gangadhar et al, 2012). In addition to the above effects, nitrogen and potassium fertilization and the atmospheric CO 2 concentration were also reported to cause changes in the pungency level of fruits (Garruña-Hernández et al, 2013;Medina-Lara et al, 2008). Therefore, the amount of capsaicinoid contents in chili pepper changes depending on various environmental conditions during cultivation.…”

Section: Introductionmentioning

confidence: 99%

Parthenocarpy Induced Fluctuations in Pungency and Expression of Capsaicinoid Biosynthesis Genes in a Japanese Pungency-variable Sweet Chili Pepper ‘Shishito’ (<i>Capsicum annuum</i>)

et al. 2021

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“…The most important components of CAPs are capsaicin (CaP) and dihydrocapsaicin (DhCaP), and these represent approximately 90% of the total content of CAPs. The accumulation of CAPs is affected by many factors, including endogenous (for example, variety and developmental stage of the fruit) and exogenous factors (for example, light, temperature, water conditions, and biological stress; Phimchan and Techawongstien, 2012 ; Garruña-Hernández et al, 2013 ). Genotype is the most important determinant of CAPs content ( Bosland et al, 2012 ; Liu et al, 2017 ); among the five domesticated species of Capsicum , Capsicum chinense , and Capsicum frutescens accumulate significantly higher contents of CAPs ( Deng et al, 2009 ; Bosland et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Ethylene-Inducible AP2/ERF Transcription Factor Involved in the Capsaicinoid Biosynthesis in Capsicum

Wen

Zhao

et al. 2022

Front. Plant Sci.

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Ethylene is very important in the process of plant development and regulates the biosynthesis of many secondary metabolites. In these regulatory mechanisms, transcription factors (TFs) that mediate ethylene signals play a very important role. Capsaicinoids (CAPs) are only synthesized and accumulated in Capsicum species, causing their fruit to have a special pungent taste, which can protect against attack from herbivores and pathogens. In this study, we identified the TF CcERF2, which is induced by ethylene, and demonstrated its regulatory effect on CAPs biosynthesis. Transcriptome sequencing analysis revealed that the expression patterns of CcERF2 and multiple genes associated with CAPs biosynthesis were basically the same. The spatiotemporal expression results showed CcERF2 was preferentially expressed in the placenta of the spicy fruit. Ethylene can induce the expression of CcERF2 and CAPs biosynthesis genes (CBGs). CcERF2 gene silencing and 1-methylcyclopropene (1-MCP) and pyrazinamide (PZA) treatments caused a decrease in expression of CBGs and a sharp decrease in content of CAPs. The results indicated that CcERF2 was indeed involved in the regulation of structural genes of the CAPs biosynthetic pathway.

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Enrichment of carbon dioxide in the atmosphere increases the capsaicinoids content in Habanero peppers (Capsicum chinense Jacq.)

Abstract: These data suggest that the increase of atmospheric CO2 could modify specific routes of secondary metabolism as well as others desirable traits, thus affecting the quality of Capsicum pepper products.

Cited by 19 publications

References 22 publications

Understanding the Physiological Responses of a Tropical Crop (Capsicum chinense Jacq.) at High Temperature

Understanding the Physiological Responses of a Tropical Crop (Capsicum chinense Jacq.) at High Temperature

Parthenocarpy Induced Fluctuations in Pungency and Expression of Capsaicinoid Biosynthesis Genes in a Japanese Pungency-variable Sweet Chili Pepper ‘Shishito’ (<i>Capsicum annuum</i>)

Ethylene-Inducible AP2/ERF Transcription Factor Involved in the Capsaicinoid Biosynthesis in Capsicum

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