Lipid profile adjustments may contribute to warming acclimation and to heat impact mitigation by elevated [CO2] in Coffea spp

Campos, Paula Scotti; Pais, Isabel P.; Ribeiro‐Barros, Ana I.; Martins, Lima Deleon; Tomaz, Marcelo Antônio; Rodrigues, Weverton Pereira; Campostrini, Eliemar; Semedo, José N.; Fortunato, Ana S.; Martins, Madlles Queiroz; Partelli, Fábio Luiz; Lidon, Fernando C.; DaMatta, Fábio M.; Ramalho, José C.

doi:10.1016/j.envexpbot.2019.103856

Cited by 40 publications

(37 citation statements)

References 47 publications

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“…At 37/ 28°C this was accompanied by higher values of PGR5 and two NDH (Cc04_g05100 and Cc06_g22890), always greater in Icatu, whereas RuBisCO and Ru5PK showed maximal activities (both genotypes). This suggests a global investment in photosynthetic/ chloroplast structures, in line with the strong lipid synthesis observed until 37/30°C, particularly in Icatu (Scotti-Campos et al, 2019). Such reinforcement of electron carriers, PGR5 and two NDH proteins, further highlights the presence of photoprotective CEF at PSI (Yamori et al, 2016;Sun et al, 2018) and PSII (Miyake and Okamura, 2003;Chu and Chiu, 2016) levels until 37/28°C, similarly to what was observed for drought conditions in Icatu.…”

Section: Impact Of Increasing Temperatures At Physiological and Biochsupporting

confidence: 67%

“…Regarding heat stress, recent studies showed that coffee can maintain photosynthetic performance up to 37°C, well above what was traditionally assumed (DaMatta et al, 2018). Such tolerance has been shown to be supported by the reinforcement of the antioxidant system (Martins et al, 2016;Rodrigues et al, 2016), and adjustments in the lipid profile of chloroplast membranes (Scotti-Campos et al, 2019). However, the predicted scenarios of climate changes point to future greater exposure to the combination of heat and drought stresses.…”

Section: Introductionmentioning

confidence: 99%

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Resilient and Sensitive Key Points of the Photosynthetic Machinery of Coffea spp. to the Single and Superimposed Exposure to Severe Drought and Heat Stresses

et al. 2020

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This study unveils the single and combined drought and heat impacts on the photosynthetic performance of Coffea arabica cv. Icatu and C. canephora cv. Conilon Clone 153 (CL153). Well-watered (WW) potted plants were gradually submitted to severe water deficit (SWD) along 20 days under adequate temperature (25/20°C, day/night), and thereafter exposed to a gradual temperature rise up to 42/30°C, followed by a 14-day water and temperature recovery. Single drought affected all gas exchanges (including A max) and most fluorescence parameters in both genotypes. However, Icatu maintained F v /F m and RuBisCO activity, and reinforced electron transport rates, carrier contents, and proton gradient regulation (PGR5) and chloroplast NADH dehydrogenase-like (NDH) complex proteins abundance. This suggested negligible non-stomatal limitations of photosynthesis that were accompanied by a triggering of protective cyclic electron transport (CEF) involving both photosystems (PSs). These findings contrasted with declines in RuBisCO and PSs activities, and cytochromes (b 559 , f, b 563) contents in CL153. Remarkable heat tolerance in potential photosynthetic functioning was detected in WW plants of both genotypes (up to 37/28°C or 39/30°C), likely associated with CEF in Icatu. Yet, at 42/30°C the tolerance limit was exceeded. Reduced A max and increased C i

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Section: Impact Of Increasing Temperatures At Physiological and Biochsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Resilient and Sensitive Key Points of the Photosynthetic Machinery of Coffea spp. to the Single and Superimposed Exposure to Severe Drought and Heat Stresses

et al. 2020

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“…Within group I, the genotype ID 31 concentrated 20.35% of total root length density (Figure 3B), 23.28% of root volume ( Figure 3D) and 22.11% of root superficial ( Figure 3F) area in the 50-60 cm soil depth. Group II was composed of genotypes ID 3,4,8,13,15,19,24,30,35,38,40,41,and 43. Group III was composed only of genotype ID 32, which had the highest root volume ( Figure 3C), mainly concentrated in the topsoil ( Figure 3D).…”

Section: Cluster Analysesmentioning

confidence: 99%

“…According to Rao et al [49], crop adaptation for infertile soils may be achieved from two options: either the growing medium may be changed or the plant genotype may be bred. Considering the current concerns about climate change and soil degradation, both options should be integrated [19].…”

Section: Root Length Density Volume Superficial Area and Root Diammentioning

confidence: 99%

“…In perennial crops, such as C. canephora, the root systems are important not only for nutrient and water uptake, but also for ecosystem services such as carbon sequestration, improving soil structure and genetic conservation [18]. Regarding the mechanisms related to coffee adaptation in adverse environments, studies about root performance in coffee during its productive stage are still scarce [19]. Such scarcity is related to the long crop cycle, as coffee is a permanent crop, along with the lack of proper methods for assessing and monitoring coffee roots.…”

Section: Introductionmentioning

confidence: 99%

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Root Trait Variability in Coffea canephora Genotypes and Its Relation to Plant Height and Crop Yield

et al. 2020

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Coffee breeding based on root traits is important to identify productive genotypes under adverse environmental conditions. This study assessed the diversity of root traits in Coffea canephora and its correlation with plant height and crop yield. Undisturbed soil samples were collected down to 60 cm from 43 coffee genotypes, in which one of them was propagated by seed and all others by stem cutting. The roots were washed, scanned, and processed to quantify root length density, root volume, root superficial area, and root diameter. Additionally, plant height and crop yield were also assessed. Root length density ranged from 40 to 1411 mm cm−3, root volume from 6 to 443 mm3 cm−3, root superficial area from 61 to 1880 mm2 cm−3, and root diameter from 0.6 to 1.1 mm. Roots were concentrated in the topsoil (0–20 cm) for most genotypes. In deeper depths (30–60 cm), root length density, root volume, and root superficial area were higher in genotypes 14, 25, 31, and 32. Positive correlations were found between root traits and both plant height and crop yield. The results of this work may contribute to the overall cultivation of C. canephora, specially for crop breeding in adverse environmental conditions.

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Gene Expression in Coffee

Marraccini

2020

Progress in Botany

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Lipid profile adjustments may contribute to warming acclimation and to heat impact mitigation by elevated [CO2] in Coffea spp

Cited by 40 publications

References 47 publications

Resilient and Sensitive Key Points of the Photosynthetic Machinery of Coffea spp. to the Single and Superimposed Exposure to Severe Drought and Heat Stresses

Resilient and Sensitive Key Points of the Photosynthetic Machinery of Coffea spp. to the Single and Superimposed Exposure to Severe Drought and Heat Stresses

Root Trait Variability in Coffea canephora Genotypes and Its Relation to Plant Height and Crop Yield

Gene Expression in Coffee

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