Coffee tree growth and environmental acclimation

DaMatta, Fábio M.

doi:10.19103/as.2017.0022.02

Cited by 10 publications

(18 citation statements)

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“…The Catuai 62 and IPR 100 cultivars showed higher sensitivity to drought when parasitized, since the plants of these cultivars exhibited photochemical sensitivity (i.e., a reduction in qP). It is noteworthy that IPR 100 showed no increase in qN or NPQ and therefore a potential loss of PSII photochemical efficiency, which may have been caused by oxidative stress (DaMatta, 2018). These results corroborate those of Silva et al (2015), as they indicate that the use of chlorophyll a fluorescence is efficient for the discrimination of the variability between genotypes in response to M. paranaensis .…”

Section: Discussionmentioning

confidence: 99%

Root morphology, gas exchange and chlorophyll fluorescence of coffee cultivars and progenies are altered by Meloidogyne paranaensis infestation and water deficit

Pasqualotto

Salgado

Terra

et al. 2020

Journal of Phytopathology

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Climate change greatly influences coffee production, especially in areas infested with plant‐parasitic nematodes. In this study, coffee genotypes showed differences in their morphological and physiological characteristics when subjected to a water deficit and parasitism by Meloidogyne paranaensis. The cultivar IPR 100 had the largest superficial and volumetric root system area, even when parasitized. The two progenies (MG 0179‐1 and MG 0179‐3) and the cultivar Catuaí IAC 62 had a similar surface area (p < .05) when parasitized. However, the root surface area and volume of MG 0179‐3 increased by 96% and 400%, respectively, when parasitized by M. paranaensis. On the other hand, Catuaí IAC 62 had a 31% reduction in root surface area. Catuai 62 and IPR 100 showed higher sensitivity to drought when parasitized because of the increased photochemical sensitivity and reduction in photochemical quenching. In MG 0179‐1 and MG 0179‐3, an increase in non‐photochemical quenching occurred in response to stress, indicating that these progenies use a photochemical response to protect photosystem II. In this work, MG 0179‐3, which is resistant to M. paranaensis, was remarkable because, interestingly, the infestation caused an increase in its root surface area. In addition, MG 0179‐3 had relatively good photochemical performance under water deficit and M. paranaensis parasitism.

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Section: Discussionmentioning

confidence: 99%

Root morphology, gas exchange and chlorophyll fluorescence of coffee cultivars and progenies are altered by Meloidogyne paranaensis infestation and water deficit

Pasqualotto

Salgado

Terra

et al. 2020

Journal of Phytopathology

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“…C. arabica L. is a tropical tree responsible for the major worldwide production of coffee ( ICO, 2019 ) and its optimal growth temperature is considered between 18 and 23°C ( Camargo, 1985 ; Teketay, 1999 ). The coffee tree has a periodicity growth habit that closely follows rainfall patterns and, historically, it is considered highly sensitive to climatic changes, especially temperature and drought ( DaMatta and Ramalho, 2006 ; Camargo, 2010 ; DaMatta, 2018 ). Mean temperatures are projected to increase by 2.6–4.8°C ( IPCC, 2013 ; IPCC, 2014 ), which may have serious repercussions on coffee production.…”

Section: Introductionmentioning

confidence: 99%

“…Considering these changing temperatures, select genotypes were identified that outperformed others when exposed to higher annual mean temperatures ( Damatta et al, 2018 ; Marie et al, 2020 ). This suggests there is potentially useful intraspecific variability of thermotolerance in some genotypes and investigation into the molecular mechanisms underlying this variability is warranted ( DaMatta, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Elevated Temperatures Impose Transcriptional Constraints and Elicit Intraspecific Differences Between Coffee Genotypes

et al. 2020

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The projected impact of global warming on coffee production may require the heatadapted genotypes in the next decades. To identify cellular strategies in response to warmer temperatures, we compared the effect of elevated temperature on two commercial Coffea arabica L. genotypes exploring leaf physiology, transcriptome, and carbohydrate/protein composition. Growth temperatures were 23/19°C (day/night), as optimal condition (OpT), and 30/26°C (day/night) as a possible warmer scenario (WaT). The cv. Acauã showed lower levels of leaf temperature (Tleaf) under both conditions compared to cv. Catuaı, whereas slightly or no differences for other leaf physiological parameters. Therefore, to explore temperature responsive pathways the leaf transcriptome was examined using RNAseq. Genotypes showed a marked number of differentially-expressed genes (DEGs) under OpT, however DEGs strongly decrease in both at WaT condition indicating a transcriptional constraint. DEGs responsive to WaT revealed shared and genotype-specific genes mostly related to carbohydrate metabolism. Under OpT, leaf starch content was greater in cv. Acauã and, as WaT temperature was imposed, the leaf soluble sugar did not change in contrast to cv. Catuaı, although the levels of leaf starch, sucrose, and leaf protein decreased in both genotypes. These findings revealed intraspecific differences in the underlying transcriptional and metabolic interconnected pathways responsive to warmer temperatures, which is potentially linked to thermotolerance, and thus may be useful as biomarkers in breeding for a changing climate.

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“…The marginal impact of elevated [CO 2 ] on coffee bean quality contrasted with the enhancement of crop yields provided that adequate water supply is available ( DaMatta, 2018 ). Moreover, enhanced [CO 2 ] was found to impair the quality of food harvestable products of several crops, such as wheat, rice, barley, potato (by decreasing protein concentration), and potato (by reducing minerals content) ( Taub, 2010 ; Dietterich et al, 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Can Elevated Air [CO2] Conditions Mitigate the Predicted Warming Impact on the Quality of Coffee Bean?

et al. 2018

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Climate changes, mostly related to high temperature, are predicted to have major negative impacts on coffee crop yield and bean quality. Recent studies revealed that elevated air [CO2] mitigates the impact of heat on leaf physiology. However, the extent of the interaction between elevated air [CO2] and heat on coffee bean quality was never addressed. In this study, the single and combined impacts of enhanced [CO2] and temperature in beans of Coffea arabica cv. Icatu were evaluated. Plants were grown at 380 or 700 μL CO2 L-1 air, and then submitted to a gradual temperature rise from 25°C up to 40°C during ca. 4 months. Fruits were harvested at 25°C, and in the ranges of 30–35 or 36–40°C, and bean physical and chemical attributes with potential implications on quality were then examined. These included: color, phenolic content, soluble solids, chlorogenic, caffeic and p-coumaric acids, caffeine, trigonelline, lipids, and minerals. Most of these parameters were mainly affected by temperature (although without a strong negative impact on bean quality), and only marginally, if at all, by elevated [CO2]. However, the [CO2] vs. temperature interaction strongly attenuated some of the negative impacts promoted by heat (e.g., total chlorogenic acids), thus maintaining the bean characteristics closer to those obtained under adequate temperature conditions (e.g., soluble solids, caffeic and p-coumaric acids, trigonelline, chroma, Hue angle, and color index), and increasing desirable features (acidity). Fatty acid and mineral pools remained quite stable, with only few modifications due to elevated air [CO2] (e.g., phosphorous) and/or heat. In conclusion, exposure to high temperature in the last stages of fruit maturation did not strongly depreciate bean quality, under the conditions of unrestricted water supply and moderate irradiance. Furthermore, the superimposition of elevated air [CO2] contributed to preserve bean quality by modifying and mitigating the heat impact on physical and chemical traits of coffee beans, which is clearly relevant in a context of predicted climate change and global warming scenarios.

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Coffee tree growth and environmental acclimation

Cited by 10 publications

References 0 publications

Root morphology, gas exchange and chlorophyll fluorescence of coffee cultivars and progenies are altered by Meloidogyne paranaensis infestation and water deficit

Root morphology, gas exchange and chlorophyll fluorescence of coffee cultivars and progenies are altered by Meloidogyne paranaensis infestation and water deficit

Elevated Temperatures Impose Transcriptional Constraints and Elicit Intraspecific Differences Between Coffee Genotypes

Can Elevated Air [CO2] Conditions Mitigate the Predicted Warming Impact on the Quality of Coffee Bean?

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