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José J.N. Macedo; Alex G. Sanches; Marcela C. Rabelo; Mônica M.A. Lopes; Valdinéia S. Freitas; Amanda G. Silveira; Carlos F.H. Moura; Ebenezer O. Silva; Maria Izabel Gallão; Enéas Gomes-Filho; Elenilson G. Alves-Filho; Maria Raquel A. Miranda
... This study investigated how pulsed light (PL) postharvest treatment influences acerola ripening physiology and quality, thus physiologically mature acerola ‘Okinawa’ were treated with PL (0.6 J.cm⁻²) and stored for 16 days at 10 °C. Compared to untreated, PL-treated acerola showed a 5% reduction in climacteric respiration with 78.65 mol CO₂ kg⁻¹ h⁻¹ and a one-day delay in ethylene peak of 2.65 µL ...
... Drought is a major abiotic factor that adversely affects plant growth and crop productivity. Abscisic acid (ABA) and melatonin (MT) are two commonly used hormones, whose exogenous application has been shown to improve crop drought tolerance under water deficiency, when used separately; however, studies on the effects of their combined application on crops are scarce. To amend this, pot studies wer ...
... ‘Starkrimson’ pears are susceptible to soft scald disorder after long-term cold storage. In the present study, the role of putrescine (PUT) and 1-methylcyclopropene (1-MCP) in the development of scald disorder, fruit softening, and ripening behaviors were initially investigated in ‘Starkrimson’ pear during 9 d of shelf life at 20 °C after 90 d storage at 1 °C. PUT (1 mM) reduced scald incidence to ...
... Microalgae have been highlighted as one of the promising feedstocks for renewable fuel production owing to their high growth rate, ability to grow on wastewater, and to convert CO₂ into lipids, the main source of biodiesel. However, lipid extraction from microalgal cells is cumbersome due to its thick cell wall which precludes commercial biodiesel production from microalgae, and to improve the lip ...
... Climate change may lead to severe losses in agriculture, including wood production. To understand the effects of climate change on physiology and molecular aspects of wood formation, we grew plants of Eucalyptus grandis and E. globulus for 35 days under three temperatures (10–12 °C, 20–22 °C, and 33–35 °C) combined with two CO₂ concentrations (390 and 700 ppm). Biochemical analyses and RNAseq in s ...
... Inspired by the structure and good thermal resistance of cell walls in plants, we herein develop a life-cycle safe multifunctional nanocomposite of a polycarbonate/black phosphorus–boron nanohybrid (PC/BP–B) with properties of photothermal-healing, thermal stability and fire safety. In the first place, the photothermal conversion capability of PC/BP–B₁.₀, evidently increases with the irradiation p ...
... Wood is widely used in the field of building materials as a green and renewable natural porous material. With the continuous increase of global carbon dioxide emissions and increasingly serious environmental problems, improving the energy storage performance of wood is conducive to reduce carbon dioxide and regulate the temperature of the living environment. In this work, a composite phase change ...
... Stropharia rugosoannulata uses straw as a growth substrate during artificial cultivation and has been widely promoted in China. However, its fruiting body formation and development processes have not been elucidated. In this study, the developmental transcriptomes were analyzed at three stages: the mycelium (G-S), primordium (P-S) and fruiting body (M-F) stages. A total of 9690 differentially expr ...
... Mesophyll conductance (gₘ), a key limitation to photosynthesis, is strongly driven by leaf anatomy, which is in turn influenced by environmental growth conditions and ontogeny. However, studies examining the combined environment × age effect on both leaf anatomy and photosynthesis are scarce, and none have been carried out in short‐lived plants. Here, we studied the variation of photosynthesis and ...
... Plant Pectin acetylesterase (PAE) belongs to family CE13 of carbohydrate esterases in the CAZy database. The ability of PAE to regulate the degree of acetylation of pectin, an important polysaccharide in the cell wall, affects the structure of plant cell wall. In this study, ten PtPAE genes were identified and characterized in Populus trichocarpa genome using bioinformatics methods, and the physio ...
Eliza Louback; Diego Silva Batista; Tiago Augusto Rodrigues Pereira; Talita Cristina Mamedes-Rodrigues; Tatiane Dulcineia Silva; Sérgio Heitor Sousa Felipe; Diego Ismael Rocha; Douglas André Steinmacher; Wagner Campos Otoni
... Pfaffia glomerata, popularly known as Brazilian-ginseng, stands out as a species of medicinal interest that has a high photoautotrophic potential for in vitro cultivation. This study aimed to analyze cell wall components of P. glomerata during in vitro cultivation in a CO₂-enriched atmosphere. For this, P. glomerata plants were grown in MS medium without sucrose, in acrylic chambers with continuou ...
... The efficient conversion of bamboo biomass into biofuel and biomaterials as well as other chemical treatments are strongly related to the porosity of its cell wall. The present work characterizes the micropore and mesopore structure in the cell walls of six bamboo species using both CO₂ and N₂ adsorption methods. For comparison, two plantation wood species were also tested. As a whole, the tested ...
Emanuelle Neiverth de Freitas; José Carlos Santos Salgado; Robson Carlos Alnoch; Alex Graça Contato; Eduardo Habermann; Michele Michelin; Carlos Alberto Martínez; Maria de Lourdes T. M. Polizeli
... The climate changes expected for the next decades will expose plants to increasing occurrences of combined abiotic stresses, including drought, higher temperatures, and elevated CO₂ atmospheric concentrations. These abiotic stresses have significant consequences on photosynthesis and other plants’ physiological processes and can lead to tolerance mechanisms that impact metabolism dynamics and limi ...
... Mosses have been found outliers of the trade‐off between photosynthesis and bulk elastic modulus described for vascular plants. Hence, potential trade‐offs among physical features of cell walls and desiccation tolerance, water relations, and photosynthesis were assessed in bryophytes and other poikilohydric species. Long‐term desiccation tolerance was quantified after variable periods of desiccati ...
beta-fructofuranosidase; biomass; carbon dioxide; cell walls; electron transfer; fertilizer application; fruit weight; fruit yield; fruiting; fruits; nutrient use efficiency; peaches; photosynthesis; ribulose-bisphosphate carboxylase; sucrose; sucrose-phosphate synthase; total soluble solids; urea; urea fertilizers
Abstract:
... The unreasonable use of urea and its low nitrogen use efficiency limit peach fruit yield and quality. In this study, six different fertilization treatments—no nitrogen fertilizer, urea (T1), glycine (T2), glycine:urea (1:1) (T3), glycine:urea (3:7) (T4), and glycine:urea (7:3) (T5)—were used to explore the effects of glycine and urea on the growth, photosynthesis, sucrose metabolism, and fruit dev ...
... Photosynthetic microalgae not only perform fixation of carbon dioxide but also produce valuable byproducts such as lipids and pigments. However, due to the lack of effective tools for rapid and noninvasive analysis of microalgal cellular contents, the efficiency of strain screening and culture optimizing is usually quite low. This study applied single-cell electrorotation on Scenedesmus abundans t ...
... Modified atmosphere packaging (MAP) has been widely known to delay the postharvest fruit senescence; nevertheless, its effect on antioxidant activity and cell wall metabolism of wolfberry fruit is largely unknown. The present study investigated the impact of elevated CO₂ on the quality attributes and cell wall degradation of wolfberry fruit during storage. The results showed that 10% CO₂ better ma ...
... This study was conducted to understand the mechanism of wheat yield decrease under drought stress and the role of CO₂ in modulating physiological and metabolic drought effects. Wheat was grown under ambient and elevated CO₂ (400 and 800 ppm, respectively), and plants were subjected to drought stress prior to anthesis. Photosynthetic rate (An), stomatal conductance (Gs), transpiration rate (E) and ...
... In most terrestrial plants, large quantities of water inevitably are diffused into the air via open stomata for CO₂ absorption during photosynthesis. It is difficult to reduce such an intrinsic demand of water for transpiration but still maintain photosynthesis. Interestingly, the xerophyte Zygophyllum xanthoxylum evolves an outstanding ability to resolve this dilemma by accumulating Na⁺ to stimul ...
... Opportunistic pathogens of the anamorphic genus Cryptococcus are unique considering their virulence factors that in the context of pathogenesis allowed them to achieve evolutionary success. Morphological transformation into giant (Titan) cells is one of the factors contributing to cryptococcosis. Recently established in vitro protocols demonstrate that 5 or 10% fetal bovine serum (FBS) combined wi ...