Nitrogen dependent changes in antioxidant system and in fatty acid composition of chloroplast membranes from Coffea arabica L. plants submitted to high irradiance

Ramalho, José C.; Campos, Paula Scotti; Teixeira, Miguel; Nunes, M. A.

doi:10.1016/s0168-9452(98)00073-9

Cited by 95 publications

(86 citation statements)

References 37 publications

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“…First, it should be noted that higher N availability promoted a better general status of the plant before exposure to high PPFD. Support for this conclusion was obtained through the higher values of some gas exchange (e.g., A max , F) and fluorescence (e.g., F v '/F m ', f e ) parameters, levels of photosynthetic pigments (both chlorophylls and carotenoids) and protein and TFA (Ramalho et al, 1998(Ramalho et al, , 2000 associated with changes in leaf morphological features and chloroplast ultrastructure (Fahl et al, 1994).…”

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 91%

“…In fact, nitrogen fertilization, applied in a broad range of doses, has positive effects on growth and may improve plant performance in conditions such as marginal temperature (Lawlor et al, 1987), high light (Osmond, 1987;Ferrar and Osmond, 1986;Algarra and Rudiger, 1993) and shortage of water (Shimshi 1970, Bennett et al, 1986. Under stress conditions, higher N availability was observed to trigger photoprotective mechanisms in C. arabica (Fahl et al, 1994;Ramalho et al, 1998Ramalho et al, , 1999Ramalho et al, , 2000 and to promote osmotic adjustment and an increase in the long term water use efficiency due to improved carbon assimilation in C. canephora (Da Matta et al, 2002).…”

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 98%

“…Since N availability is particularly important for protein synthesis, the level of N nutrition will determine photosynthetic shade to sun acclimation as well as sensitivity to and recovery from photoinhibition (Ferrar and Osmond, 1986;Ramalho et al, 1998Ramalho et al, , 2000.…”

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 99%

“…1.5 years old) Coffea arabica plants, emphasize an interesting ability to acclimate M.L.C. CARELLI et al to high irradiance, both on a short-term (Ramalho et al, 1997) and a long-term basis (Fahl et al, 1994;Ramalho et al, 1998;Ramalho et al, 1999), if appropriate N nutrition were provided. The observed N-dependent photosynthetic performance and acclimation was a consequence of several processes with their own characteristic time responses.…”

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 99%

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Aspects of nitrogen metabolism in coffee plants

Carelli

Fahl

Ramalho

2006

Braz. J. Plant Physiol.

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Coffee plants are highly N-demanding plants. Despite the importance of N nutrition for the development, acclimation and yield of coffee plants, there are few reports concerning N metabolism in this species. In this review, our intention is to summarize the information available in the literature and to point out the influence of environmental conditions on N assimilation, as well as comment and discuss some apparently contradictory results and raise and enlighten queries about N assimilation in coffee plants. Key words: Coffea, irradiance level, nitrate reductase, nitrogen fertilization, oxidative stress, photoinhbition, photoprotection, photosynthesis.Aspectos do metabolismo de nitrogênio em plantas de café: Plantas de cafédemandam grandes quantidades de N. Apesar da importância da nutrição nitrogenada para o desenvolvimento, aclimatação e produtividade de plantas de café, são poucos os trabalhos sobre o metabolismo de N nesta espécie. A intensão desta revisão é sumarizar a informação disponível na literatura e discutir a influência das condições ambientais na assimilação de N, assim como comentar e discutir alguns resultados aparentemente contraditórios e levantar e destacar perguntas sobre a assimilação de N em plantas de café. Palavras-chave: Coffea, estresse oxidativo, fertilização nitrogenada, fotoinibição, fotoproteção, fotossíntese, nível de irradiância, redutase do nitrato.Abbreviations -A, net photosynthetic rate; A max , photosynthetic capacity at CO 2 and light saturating conditions; C16:0, palmitic acid; C18:3, linolenic acid; 3 Car triplet state of β-carotene; chl, chlorophyll; 1 chl, singlet state of chl; 3 chl*, triplet state of chl; cyt, cytochrome; DEPS, de-epoxidation state; F o , minimal fluorescence of antennae in dark-adapted leaves; F v /F m and F v´/ F m´, photochemical efficiency of PSII in dark-adapted leaves and under photosynthetic steadystate conditions, respectively; H 2 O 2 , hydrogen peroxide; LHC, light harvesting complexes associated with photosystems; J max , electron transport capacity; NR, nitrate reductase; NRA, nitrate reductase activity; O 2•-, superoxide anion radical; 1 O 2 , singlet state of oxygen; OEC, oxygen-evolving complex from PSII; • OH, hydroxyl radical; P 680 , PSII reaction centre; PPFD, photosynthetic photon flux density; PSI and II, photosystem I and II, respectively; Q A , quinone A; q E , "high-energy" quenching; q NP , non-photochemical quenching; q P , photochemical quenching; TFA, total fatty acids; V cmax , maximum carboxylation activity; Φ, quantum yield of photosynthesis; φ e , estimation of the quantum yield of photosynthetic electron transport.

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Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 91%

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 98%

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 99%

Section: Photoprotective Role Of Nitrogen Under Photoinhibitory Condimentioning

confidence: 99%

See 2 more Smart Citations

Aspects of nitrogen metabolism in coffee plants

Carelli

Fahl

Ramalho

2006

Braz. J. Plant Physiol.

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“…According to previous studies, additional nitrogen can also induce a great deal of physiological alterations, such as reducing accumulation of active oxygen species (AOS) and MDA (malondialdehyde), increasing foliar proline content, and affecting photosynthesis (Ramalho et al 1998;Nakaji et al 2001;Yao and Liu 2006). Similar to nitrogen, temperature also is one of the most important factors controlling the physiological activity and growth of plants.…”

Section: Introductionmentioning

confidence: 99%

Growth and physiological responses of Picea asperata seedlings to elevated temperature and to nitrogen fertilization

Zhao

Liu

2008

Acta Physiol Plant

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Picea asperata is a dominant species in the subalpine coniferous forests distributed in eastern edges of Tibetan Plateau and upper reaches of the Yangtze River. The paper mainly identified the short-term influences of experimental warming, nitrogen fertilization, and their combination on growth and physiological performances of Picea asperata seedlings. These seedlings were subjected to two levels of temperature (ambient; infrared heater warming) and two nitrogen levels (0; 25 g m -2 a -1 N) for 6 months. We used a free air temperature increase of overhead infrared heater to raise both air and soil temperature by 2.1 and 2.6°C, respectively. The temperature increment induced an obvious enhancement in biomass accumulation and the maximum net photosynthetic rate, and decreased AOS and MDA level under ambient nitrogen conditions. Whereas, negative effects of experimental warming on growth and physiology was observed under nitrogen fertilization condition. On the other hand, nitrogen fertilization significantly improved plant growth in unwarmed plots, by stimulating total biomass, maximum net photosynthetic rate (A max ), antioxidant compounds, as well as reducing the content of AOS and MDA. However, in warmed plots, nitrogen addition clearly decreased A max , antioxidant compounds, and induced higher accumulation of AOS and MDA. Obviously, the beneficial effects of sole nitrogen on growth and physiology of Picea asperata seedlings could not be magnified by artificial warming.

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Toxic Effects of Some Herbicides on the Fatty Acid Profile of Wheat Varieties

Karabulut

Çanakcı-Gülengül

2022

Core Microbiome

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Nitrogen dependent changes in antioxidant system and in fatty acid composition of chloroplast membranes from Coffea arabica L. plants submitted to high irradiance

Cited by 95 publications

References 37 publications

Aspects of nitrogen metabolism in coffee plants

Aspects of nitrogen metabolism in coffee plants

Growth and physiological responses of Picea asperata seedlings to elevated temperature and to nitrogen fertilization

Toxic Effects of Some Herbicides on the Fatty Acid Profile of Wheat Varieties

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