Flooding-induced changes in photosynthesis and oxidative status in maize plants

Yordanova, Rusina; Попова, Л. Л.

doi:10.1007/s11738-007-0064-z

Cited by 122 publications

(100 citation statements)

References 34 publications

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“…The decrease in carboxylation efficiency may occur due to lower carboxylase RuBisCO activity in plants under flood conditions (YORDANOVA;POPOVA, 2007). In addition, the accumulation of photoassimilates in the leaves caused by the reduction in the phloem sap flow in flooded castor bean plants (PEUKE et al, 2014) can result in the feedback inhibition of photosynthesis (STITT, 1986).…”

Section: Discussionmentioning

confidence: 99%

Photosynthetic activity of young Ricinus communis L. plants under conditions of flooded soil

Dalberto

Martinazzo

Hüther

et al. 2017

SCA

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Soil flooding is a stress condition that causes changes in hydric relationships and in the metabolism of crops, thereby affecting their productivity. To evaluate the effects of soil flooding on the chlorophyll a fluorescence transient, as well as gas exchange and Ricinus communis growth, young plants of the ‘AL Guarany 2002’ and ‘IAC Guarani’ cultivars, grown in a greenhouse, were subjected to flood conditions by maintaining a layer of water 2-3 cm above the soil. The stressed plants showed drastic reduction in net CO2 assimilation and growth variables. There was, however, an increase in performance index (PIABS e PITOTAL) at different moments of stress between the two cultivars. In general, R. communis plants possess mechanisms to protect the electron transport chain during a period of stress, without causing damage and reducing functionality. However, this is not enough to maintain photosynthetic activity owing to the decrease in stomatal conductance and intrinsic carboxylation efficiency, which affects biomass accumulation in stressed plants. In summary, this study found that the ‘AL Guarany 2002’ was found to be more sensitive to stress than the ‘IAC Guarani’ was.

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Section: Discussionmentioning

confidence: 99%

Photosynthetic activity of young Ricinus communis L. plants under conditions of flooded soil

Dalberto

Martinazzo

Hüther

et al. 2017

SCA

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“…The relationship between the concentrations of hydrogen peroxide and MDA in roots and leaves of various plants exposed to soil flooding was repeatedly demonstrated (Asada, 2006) and the existence of a direct relationship between stress sensitivity and the early accumulation of MDA was shown (Arbona et al, 2008). Usually soil hypoxia increased the MDA concentration, especially in intolerant species (Chen and Qualls, 2003;Yordanova and Popova, 2007). In our experiments the TBARs concentration increased and then remained at a high level in roots of flooded spring rape but in the leaves an initial increase in the TBARs concentration changed to a decrease at the end of the experiment.…”

Section: Fig 1 Alcohol Dehydrogenase (Adh) Activity In Roots Ofmentioning

confidence: 97%

“…According to different authors the proline accumulation in plant should be considered as one of the links of the common chain of biochemical adaptation mechanisms functioning in stressed plants (Radyukina et al, 2008;Shevyakova et al, 2009). Some reports showed an increase in proline concentration in plants under soil flooding (Yordanova and Popova, 2007). It was found that, under the waterlogging conditions, the number of new leaves, root length, plant height and plant biomass and content of soluble protein in roots of Malus species declined, while the content of malondialdehyde (MDA) and proline, the generation rate of superoxide radical, relative membrane permeability, and the activities of SOD and peroxidase in roots significantly increased (Bai et al,2008).…”

Section: Introductionmentioning

confidence: 99%

Stress responses of spring rape plants to soil flooding

Balakhnina¹,

Bennicelli²,

Stępniewska³

et al. 2012

International Agrophysics

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A b s t r a c t. Stress responses of spring rape to soil hypoxia were investigated during 8-days flooding. Soil air-filled porosity decreased from 25-30% to 0%, oxygen diffusion rate -from 2.6-3.5 to 0.34 µmol O 2 m -2 s -1, and redox potential -from 460 to 150 mV within few hours. Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control. Superoxide dismutase activity in roots increased by 27% during first 3 days and then dropped to 60% of control; in the leaves superoxide dismutase activity increased in average by 44%. Ascorbate peroxidase activity in leaves increased by 37% during first 3 days and then decreased to control value. Glutathione reductase activity increased by 45% in roots of flooded plants but did not change in leaves. Proline concentration in leaves increased up to 4-fold on the 3d day of flooding and then decreased to control value. Thus soil flooding induces increase of alcohol dehydrogenase activity and subsequent increase of superoxide dismutase and glutathione reductase activities in roots while the leaves display a few days increase of free proline concentration and ascorbate peroxidase activity, and a long-term increase of superoxide dismutase activity.K e y w o r d s: spring rape, flooding, oxygen diffusion rate, redox potential, enzyme activity INTRODUCTION Soil flooding changes subsurface plant gas exchange. The low diffusion rate of oxygen in water-filled pore space of the soil results in limitation of oxygen availability for plant roots and soil microorganisms and leads to a switch of aerobic metabolism of plant roots into less efficient anaerobic fermentation, causing a fast depletion of carbohydrate reserves. Hypoxic conditions in soil cause also a decrease of Eh (Balakhnina et al., 2009(Balakhnina et al., , 2010 Gliñski and Stêpniewski, 1985;Bailey-Serres and Voesenek, 2008). This, in turn, stimulates evolution of carbon dioxide, molecular hydrogen, hydrogen sulphide, ethylene, and methane and accumulation in the soil of reduced phytotoxins (Fe 2+ , Mn 2+ , sulfide and, at high concentrations, ammonium) which can have a negative impact on plants, causing, among others, growth retardation, reduction in leaf size, wilting of shoots and necrosis (Lucassen et al., 2002; Smith and Restal, 2006). Plant adaptation to soil hypoxia includes series of interconnected reactions directed to survival during the periods of hypoxic and anoxic conditions and to the homeostasis maintenance. Anatomical and morphological changes help to provide oxygen to the plant tissues (Colmer, 2003;Pederson et al., 2009;Vartapetian et al., 2003).In connection with the specificity of the effect of hypoxia on plants, of special interest are compensatory changes connected with transformations of respiration pathways. Under oxygen deficiency most plants exhibit intensification of glycolysis accompanied with accumulation of lactate and ethanol (Rocha et al., 2010). Under prolonged and deep hypoxic stress the formation of ethanol prevails. Pr...

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“…Uma das consequências do alagamento do solo é a baixa atividade fotossintética, causando diminuição da concentração de clorofila (LADYGIN, 2004;YORDANOVA;PAPOVA, 2007), resultando na formação de clorose. Trabalhando com ervilha, Ladygin (2004) constatou em plantas que passaram por períodos de hipóxia radicular, as folhas apresentaram uma coloração amarela à quase branca, resultado da pequena quantidade dos pigmentos contidos nos cloroplastos, o que acarretou uma baixa taxa fotossintética.…”

Section: Introductionunclassified

Desempenho morfofisiológico de cultivares de soja de ciclo médio em condições de alagamento do solo

Ludwig¹,

Oliveira²,

Schuch³

et al. 2017

Revista Verde

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Eng. Agr., Pesquisador, Doutor Embrapa Clima Temperado, Capão do Brasil, Eng. Agr., Mestre, Doutorando, Universidade Federal de Viçosa (UFV), 36570-000, Viçosa-MG, Brasil, rseusagro@hotmail.com.Revista Verde -ISSN 1981-8203 -(Pombal -PB) v. 12, n.3, p.385-391, jul.-set., 2017Revista Verde de Agroecologia e Desenvolvimento Sustentável V.12, Nº 3, p. 385-391, 2017 Pombal, PB, Grupo Resumo: O aumento no cultivo de soja no Brasil têm atingido áreas antes utilizadas para outros fins, como em regiões de solos de várzea, estando assim, sujeita a eventuais alagamentos do solo. Este trabalho objetivou avaliar alterações morfofisiológicas em cultivares de soja de ciclo médio, em condições de alagamento do solo, nos estádios fenológicos vegetativo e reprodutivo para recomendação de cultivares. Os experimentos foram conduzidos na Estação Experimental de Terras Baixas, da Embrapa Clima Temperado em Capão do Leão, RS. Foram aplicados três sistemas de manejo da água: condição normal de cultivo (sem alagamento), alagamento no período vegetativo (V3/V4) e alagamento no período reprodutivo (R2/R3). As avaliações realizadas durante o ciclo da cultura foram: altura de plantas, diâmetro da haste principal, índice do teor de clorofila, fenologia e número de nós nas hastes por planta. O alagamento do solo reduz o número de nós na haste principal, reduzindo a estatura das plantas, sendo os efeitos mais acentuados quando o alagamento ocorre no estádio vegetativo. Além disso, o alagamento do solo no período reprodutivo promove aumento do diâmetro da haste principal. O alagamento do solo causa retardamento de ocorrência dos estádios fenológicos, bem como do ciclo total das cultivares de soja. Palavras-chave:Glycine max; Estatura de planta; Fotossíntese; Índice do teor de clorofila. Abstract:The increase in soybean cultivation in Brazil has reached areas previously used for other purposes, such as in regions of lowland soils, thus being subject to possible soil flooding. This study aimed to evaluate morphophysiological changes in medium cycle soybean cultivars, under soil flooding conditions, in the vegetative and reproductive stages to recommend cultivars. The experiments were conducted at the Estação Experimental de Terras Baixas, EMBRAPA Clima Temperado in the Capão do Leão city, RS. Three water management systems were applied: normal cultivation condition (without flooding), flooding in the vegetative stage (V3 / V4) and flooding during the reproductive stage (R2 / R3). During the crop cycle, plant height, diameter of the main stem, chlorophyll content index, phenology and number of nodes in the stem per plant were collected. On the basis of the results this study, it can be concluded that he flooding reduces the number of nodes on the main stem, reducing plant height, with the most pronounced effects when flooding occurs in the vegetative stage. Furthermore, flooding the reproductive stage promotes increased diameter of the main stem. Flooding causes delay of occurrence of phenological stages and the total cycle of soybean cultiva...

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Flooding-induced changes in photosynthesis and oxidative status in maize plants

Cited by 122 publications

References 34 publications

Photosynthetic activity of young Ricinus communis L. plants under conditions of flooded soil

Photosynthetic activity of young Ricinus communis L. plants under conditions of flooded soil

Stress responses of spring rape plants to soil flooding

Desempenho morfofisiológico de cultivares de soja de ciclo médio em condições de alagamento do solo

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