Morpho-anatomical changes and antioxidant enzyme activity during the acclimatization of Genipa americana

Souza, Rafaela Ribeiro de; Paiva, Patrícia Duarte de Oliveira; Souza, Afonso Ricardo de; Silva, Raphael Reis da; Silva, Diogo Pedrosa Corrêa da; Reis, Michele Valquíria dos; Paiva, Renato

doi:10.1007/s11738-021-03263-9

Cited by 14 publications

(12 citation statements)

References 33 publications

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“…The cultivars also showed significant differences in the chlorophyll index (Table 3), where it was observed that the ornamental sunflowers 'Girassol F1 Vincents Choice' and 'Sol Vermelho' presented significantly higher values for Chl a, Chl b, and Chl total compared to the other cultivars studied (Figure 2B). Chlorophyll concentration is a variable that usually has a direct relationship to photosynthetic efficiency and is strongly influenced by environmental and genetic conditions (Souza et al, 2021). Therefore, increasing or maintaining the chlorophyll concentration allows plants to achieve photosynthetic efficiency, high growth rates, and productivity under different environmental conditions.…”

Section: Resultsmentioning

confidence: 99%

Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

Silva

Souza

Chaves

et al. 2022

Rev. bras. eng. agríc. ambient.

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Knowledge of how climatic conditions affect plant morphophysiology is essential for understanding how to manage the growth cycles of different crops. The aim of this study was to evaluate the effects of the growing seasons in a semi-arid area on the morphophysiological variables of ornamental sunflower plants. The experiment was carried out in a randomized block design in a split-plot arrangement with four replicates. Six cultivars (‘Bonito de Outono Sortido’, ‘Sol Noturno’, ‘Sol Vermelho’, ‘Jardim Amarelo Alto’, ‘Girassol F1 Sunbright Supreme’ and ‘Girassol F1 Vincents Choice’) were evaluated in the main plots and two different growing seasons (GS) in the subplots (GS1 - warm climate and GS2 - mild climate). Evaluations of gas exchange, chlorophyll indices, and leaf surface area were carried out at the reproductive stage (R5.5). The cultivation of ornamental sunflowers in semi-arid regions was significantly affected by the growing season. Changes in gas exchange variables and the morphophysiology of ornamental sunflower plants in the two growing seasons reflected the high phenotypic plasticity characteristic of this species. The cultivation of ornamental sunflowers under semi-arid conditions in the growing season, when air temperature and solar radiation are high, could be limited due to elevated transpiration rates. Therefore, it is recommended that they are grown mainly during the moderate climatic season in semi-arid regions.

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Section: Resultsmentioning

confidence: 99%

Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

Silva

Souza

Chaves

et al. 2022

Rev. bras. eng. agríc. ambient.

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“…This result indicates that plants of H. rauliniana and H. bihai genotype exhibit high plasticity for the accumulation of chlorophylls, investing more energy for the synthesis and accumulation of these pigments that may contribute to optimize the use of incident light and enable greater photosynthetic efficiency under shade conditions (Souza et al, 2021).…”

Section: Methodsmentioning

confidence: 95%

“…Studies of anatomy and physiology are extremely important and make it possible to understand adaptive tendencies and also the functioning of the plant in various environments (Souza et al, 2021). However, there is a lack of studies on the behavior of heliconias, in semiarid regions, especially in sub-medium of the São Francisco Valley, wich is characterized by high incidence of solar radiation.…”

Section: Introductionmentioning

confidence: 99%

Leaf anatomy and morpho-physiological mechanisms of acclimation to high irradiance in heliconia genotypes

Leite

Souza

et al. 2023

Ciênc. agrotec.

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The amount of solar irradiation available in the growing environment can cause significant changes in physiology and leaf anatomy that enable crops to acclimate to different light conditions. In this sense, the objective was to characterize the leaf anatomy and to elucidate the morpho-physiological mechanisms of acclimation to high solar irradiance of heliconia genotypes during the initial stage of development under semiarid conditions. The experiment was conducted in the municipality of Petrolina, Pernambuco state, Brazil (09° 19’ 14” S, 40° 32’ 40” W, and 387 m of altitude) and the behavior of three heliconia genotypes (Heliconia rauliniana; H. bihai cv. Lobster Claw Two, and H. rostrata) grown in full sun and shading (50%) environments were evaluated. At 30 days after the implementation of the experiment, leaf anatomy, chlorophyll index, plant height, number of leaves, and number of tillers were analyzed. Heliconia leaves are characterized as amphistomatous with tetracytic stomata. In its main vein there are aerenchyma structures and hypodermis on the abaxial and adaxial sides. The responses to different light conditions in plants of H. bihai, H. rauliniana, and H. rostrata are genotype-specific. Furthermore, the anatomical structures and physiological changes observed in H. bihai and H. rauliniana plants demonstrate that these genotypes present greater plasticity and consequently greater potential for acclimation to high solar irradiation conditions. Thus, the genotypes H. rauliniana and H. bihai emerge as a potential alternative for cultivation in gardens or in open areas and for exploration as cut flower in regions with high solar irradiation availability.

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“…This study showed that the carp were in a relatively poor survival state when fed with a 340 g/kg protein diet. SOD and CAT can inhibit inflammatory factors [ 39 ], scavenge free radicals [ 40 ], improve immune function [ 41 ], and perform detoxification [ 42 ] in fish. Furthermore, MDA is a typical parameter that is used to reflect the oxidative damage of the body [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Different Dietary Protein Levels on the Growth Performance, Physicochemical Indexes, Quality, and Molecular Expression of Yellow River Carp (Cyprinus carpio haematopterus)

Wang

Tian

Jiang

et al. 2023

Animals

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A 12-week rearing trial was carried out to estimate effects on the growth performance, physicochemical indexes, quality, and the molecular expression of Yellow River Carp (Cyprinus carpio haematopterus) using five practical diets, including dietary protein levels of 220, 250, 280, 310, and 340 g/kg. The results illustrated that the fish’s weight gain (WG) and specific growth rate (SGR) were significantly influenced, with an ascending dietary protein level of up to 250 g/kg (p < 0.05). The carp muscle contents of total saturated fatty acids (∑SFA), monounsaturated fatty acids (∑MUFA), polyunsaturated fatty acids (∑PUFA), and fatty acids (∑FA) decreased significantly with the ascending dietary protein levels, except for the 250 g/kg protein diet (p < 0.05). Only the glutamic acid and total essential amino acid (∑EAA) contents were significantly influenced by the ascending dietary protein levels (p < 0.05). The relative GH expression of the carp muscle significantly decreased with the increase in the dietary protein level up to 310 g/kg, and then it significantly increased (p < 0.05). In the intestines, the peak relative TOR expression was observed on the 220 g/kg protein diet, while the relative 4EBP1 expression was significantly influenced by the dietary protein level up to 250 g/kg (p < 0.05). In the muscle, the peak relative TOR and 4EBP1 expression levels were observed on the 250 g/kg protein diet. In gills, the lowest relative Rhag, Rhbg, and Rhcg1 expression levels were observed on the 250 g/kg protein diet. Based on all of the aforementioned results, the optimal dietary protein level for Cyprinus carpio haematopterus (160.24 ± 15.56 g) is 250–280 g/kg.

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Morpho-anatomical changes and antioxidant enzyme activity during the acclimatization of Genipa americana

Cited by 14 publications

References 33 publications

Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

Leaf anatomy and morpho-physiological mechanisms of acclimation to high irradiance in heliconia genotypes

Effects of Different Dietary Protein Levels on the Growth Performance, Physicochemical Indexes, Quality, and Molecular Expression of Yellow River Carp (Cyprinus carpio haematopterus)

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