Death mechanisms caused by carotenoid biosynthesis inhibitors in green and in undeveloped plant tissues

Kim, Jin-Seog; Yun, Byung‐Wook; Choi, Jung Sup; Kim, Tae‐Joon; Kwak, Sang‐Soo; Cho, Kwang-Yun

doi:10.1016/j.pestbp.2003.12.001

Cited by 24 publications

(17 citation statements)

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“…In addition to its effect on photosynthesis, carotenoids exert an antioxidant function in chloroplasts due to the ability to extinguish the ROS that are naturally formed during this process (Kim et al, 2004). The reduction of the carotenoid contents can cause oxidative stress due to the oxidative degradation of chlorophylls and rapid destruction of thylakoid membranes by excessive ROS generated, resulting in tissue discoloration, necrosis, desiccation and death (Kim et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

Changes in Photosynthesis and Oxidative Stress in Wheat Plants Submmited to Herbicides Application

et al. 2016

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-The use of herbicides, even in tolerant crops, can cause stress evidenced by increase phytotoxicity affecting growth and development. The objectives of this study were to evaluate herbicides effect from different mechanisms of action in photosynthetic and oxidative stress parameters, as well visual phytotoxicity and wild radish control in wheat crop, cultivar Quartzo. Two trials were conducted where the first one evaluated the photosynthetic parameters on wheat plants in two seasons collection, following the application of herbicides bentazon, clodinafop, iodosulfuron, metribuzin, metsulfuron and 2,4-D; and the second one evaluated wild radish (Raphanus sativus) control, wheat phytotoxicity and yield due to bentazon, iodosulfuron, metribuzin, metsulfuron and 2,4-D herbicides application. Photosynthetic rate, stomatal conductance and transpiration were negatively affected by metribuzin, metsulfuron and 2,4-D herbicides at 24 and 120 HAS (hours after spraying) compared to control. Oxidative stress was similar or lower to control, when herbicide was applied and, in general, there was no difference between application times. Lipid peroxidation, catalase activity and phenols were higher in the first collection time. The application of herbicides iodosulfuron and 2,4-D reduces chlorophylls and carotenoids in wheat. Herbicides bentazon, iodosulfuron, metribuzin, metsulfuron and 2,4-D are selective to wheat, cultivar Quartzo and do not affect wheat yield. 2,4-D, metribuzin and iodosulfuron are more efficient for wild radish control. Keywords

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Section: Resultsmentioning

confidence: 99%

Changes in Photosynthesis and Oxidative Stress in Wheat Plants Submmited to Herbicides Application

et al. 2016

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“…Anthocyanin Biosynthesis in Non-Chlorophyllous Corn Leaf 17 perature for 1 d. They were then sown in pots (350 cm 2) and grown in a greenhouse (30 to 35~ to 25~ day/night; 14-h photoperiod) for 3 d. Afterward, the pots were transferred to a growth chamber (29 _ I~ light, 70 ___ 5 Mmol m -2 s-l; 12-h photoperiod) and incubated for 4 d (Kim et al, 2003(Kim et al, , 2004. The second leaves of the resultant white seedlings were cut into 5-ram segments after their mid-ribs were removed.…”

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confidence: 99%

Responses to environmental and chemical signals for anthocyanin biosynthesis in non-chlorophyllous corn (Zea mays L.) leaf

et al. 2006

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The effects of environmental and chemical signals on anthocyanin biosynthesis in non-chlorophyllous (white) corn leaves were investigated. Carbohydrates that caused the greatest stimulation of anthocyanin formation included fructose, glucose, and sucrose, followed by maltose, raffinose, trehalose, cellobiose, melibiose, galactose, and lactose. Sucrose enhanced the expression of anthocyanin biosynthesis genes on a transcriptional level. Carbohydrate concentration, duration of light exposure, and incubation temperature also had quantitative effects, low temperatures stimulated anthocyanin biosynthesis whereas water stress had no effect. Abscisic acid, jasmonic acid, and ethephon also enhanced anthocyanin accumulation, although the degree of its accumulation depended on co.supplied sucrose concentrations, and was relatively lower in white tissue than in green tissue. Gibberellic acids and 6-benzylaminopurine were significantly inhibitory at the nanomolar level. Indole 3-acetic acid and salicylic acid did not influence anthocyanin synthesis in the white tissue system. Diuron inhibited its formation only in green tissue. These results indicate that the white leaf segments of corn would be good systems for research on the signal networks related to chloroplast functioning in anthocyanin biosynthesis. Additionally, this experimental system could be practical for identifying hormone-like substances, especially gibberellic acids and benzylaminopurine.Keywords: anthocyanin biosynthesis, carbohydrates, environmental factors, non-chlorophyllous tissue, plant hormones, signal network Anthocyanins are the red, purple, and blue flavonoid pigments produced mainly in plant epidermal cells, where they accumulate in vacuoles, causing the tissue to become colored. The biochemical and genetic basis for anthocyanin production is relevant to both the development of neutroceutica[s, because of its antioxidant activity and resistance to environmental stress, and to its modification of flower colors (Mol et al., 1996;Chalker-Scott, 1999; WinkeI-Shirley, 2001;Kong et al., 2003). The anthocyanin biosynthetic pathway has been studied intensively. Expression of the genes involved is regulated by a complex array of environmental and developmental signals, such as light quality, temperature, plant hormones, and sugars (Mo Chalker-Scott, 1999; WinkeI-Shirley, 2001). Some of these signals promote the activity of master transcription regulators that control various secondary metabolic pathways (Endt et al., 2002). Negative regulators of anthocyanin biosynthesis also have been reported (Aharoni et al., 2001;Wade et al., 2003). Nevertheless, although the physiology and basic genetics of the anthocyanin biosynthetic pathway are well characterized, an integrated understand-*Corresponding author; fax +82-42-861-4913 e-mail jskim@krict.re.kr ing of the regulatory network is still elementary. Park et al. (1998) have reported that anthocyanin formation is accelerated by sucrose supplementation to a greater extent in non-chlorophyllous (white) leaf segment...

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“…Esses herbicidas podem afetar a formação de outros pigmentos, como xantofilas (VÁRADI et al, 2000) e carotenoides (KIM et al, 2004), causando interferência no fluxo de elétrons (WAKABAYASHI;BöGER, 2004). E outros, como sulfentrazone, podem modificar a síntese de intermediários utilizados no processo fotossintético, em virtude de a produção de clorofila ser inibida pelo bloqueio da rota (DUKE et al, 1991).…”

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Eficiência quântica do fotossistema II de mudas de abacaxizeiro 'imperial' em resposta a associação com Piriformospora indica e herbicidas

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Ferreira

et al. 2014

Rev. Bras. Frutic.

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resumo -O objetivo foi avaliar o efeito dos herbicidas diuron, ametryn e sulfentrazone, e da associação micorrízica na eficiência quântica do fotossistema II de mudas de abacaxizeiro 'Imperial'. Foi utilizado o esquema de parcela subdividida, tendo na parcela o fatorial 2 x 4, sendo dois tipos de mudas: inoculadas com P. indica e sem inoculação, e quatro doses de herbicidas: 0; 1,5; 3,0 e 6,0 L ha -1 para o ametryn, 0; 1,6; 3,2 e 6,4 L ha -1 para o diuron e 0; 0,4; 0,8 e 1,6 L ha -1 para o sulfentrazone, e na subparcela as épocas de avaliação, distribuídos no delineamento inteiramente casualizado, com três repetições. Os herbicidas foram aplicados ao substrato antes do plantio das mudas. A inoculação com o fungo P. indica foi feita no momento do plantio. A avaliação da eficiência quântica foi feita por meio da razão de fluorescência da clorofila a (Fv/Fm), determinada aos 60; 90 e 120 dias após o plantio das mudas, obtendo-se a fluorescência inicial, máxima, e variável. Os dados obtidos foram submetidos à análise de variância e regressão polinomial. O herbicida ametryn não comprometeu a eficiência do fotossistema II das mudas de abacaxizeiro inoculadas com o fungo P. indica. A inoculação com fungo P. indica aumentou a eficiência do fotossistema II das mudas. A aplicação dos herbicidas diuron e sulfentrazone em doses elevadas reduziu a eficiência do fotossistema II de mudas de abacaxizeiro 'Imperial' não inoculadas com o fungo P. indica. termos para indexação: Ananas comosus, associação micorrízica, fluorescência da clorofila. quantum efficiencY of photosYstem ii of 'IMPERIAL' pineapple nurserY in response to association with the Piriformospora indica and herBicide aBstract -The aim to evaluate the effect of diuron, sulfentrazone in ametryn herbicides and mycorrhizal association in quantum efficiency of photosystem II of 'Imperial' pineapple nursery. The split-split plot scheme was used, taking in plot the 2 x 4 factorial, being the factors two types of nursery pineapple: inoculated with P. indica and without inoculation and four doses of herbicides: 0, 1.5, 3.0 and 6.0 L ha -1 for ametryn, 0, 1.6, 3.2, 6.4 L ha -1 for diuron and 0, 0.4, 0.8 and 1.6 L ha -1 for sulfametrazone and the sub-plot evaluation times, distributed in a completely randomized design with three replications. Herbicides were applied to the substrate before planting of pineapple nursery. Inoculation with the fungus P. indica it was made at the time of planting. The evaluation of quantum efficiency was taken as the ratio chlorophyll a fluorescence (Fv/Fm), determined at 60, 90 and 120 days after planting of the nursery pineapple, determining the initial fluorescence, maximal and variable. Data were submitted to analysis of variance and regression. Herbicide ametryn did not affect the photosystem II efficiency of pineapple nursery associated with the fungus P. indica. Inoculation with the fungus P. indica increased the photosystem II efficiency. The diuron and sulfentrazone herbicides application at high doses decreased in photosystem II efficie...

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Death mechanisms caused by carotenoid biosynthesis inhibitors in green and in undeveloped plant tissues

Cited by 24 publications

References 47 publications

Changes in Photosynthesis and Oxidative Stress in Wheat Plants Submmited to Herbicides Application

Changes in Photosynthesis and Oxidative Stress in Wheat Plants Submmited to Herbicides Application

Responses to environmental and chemical signals for anthocyanin biosynthesis in non-chlorophyllous corn (Zea mays L.) leaf

Eficiência quântica do fotossistema II de mudas de abacaxizeiro 'imperial' em resposta a associação com Piriformospora indica e herbicidas

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