Short term stomatal responses to light intensity changes and osmotic stress in sorghum seedlings raised with and without silicon

Hattori, Tomokazu; Sonobe, Kaori; Inanaga, Shinobu; An, Ping; Tsuji, Wataru; Araki, Hideki; Eneji, A. Egrinya; Morita, Shigenori

doi:10.1016/j.envexpbot.2006.10.004

Cited by 87 publications

(53 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A maior parte dos estudos que comprovam os benefícios do Si na agricultura foi realizada com espécies herbáceas de rápido crescimento (Goto et al, 2003;RomeroAranda et al, 2006;Hattori et al, 2007;Côté-Beaulieu et al, 2009;Savvas et al, 2009;Hashemi et al, 2010;Zanão Júnior et al, 2010). O hábito de crescimentolento em espécies arbóreas, como o cafeeiro, ou rápido em espécies herbáceas, como o arroz -parece ser um fator adicional que altera a resposta ao Si, sendo o benefício mais evidente nas espécies anuais.…”

Section: Discussionunclassified

“…O Si é um elemento que confere às plantas maior resistência a estresses bióticos e abióticos (Goto et al, 2003;Romero-Aranda et al, 2006;Hattori et al, 2007;Côté-Beaulieu et al, 2009;Savvas et al, 2009;Hashemi et al, 2010), assim como melhora o manejo fitossanitário de cafeeiros (Reis et al, 2008) e plantas de trigo (Zanão Júnior et al, 2010).…”

Section: Introductionunclassified

See 1 more Smart Citation

O alto teor de silício no solo inibe o crescimento radicular de cafeeiros sem afetar as trocas gasosas foliares

Ribeiro

Silva²,

Ramos³

et al. 2011

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

RESUMOO benefício do silício (Si) no crescimento de plantas cultivadas tem sido observado em vários trabalhos. O objetivo deste estudo foi avaliar os efeitos de Si no crescimento de mudas de cafeeiro cv. Catuaí Vermelho. O experimento foi conduzido em vasos, e as plantas crescidas em casa de vegetação, sem restrição hídrica. A partição de matéria seca entre raízes, caule e folhas, os teores de nutrientes e Si nos tecidos vegetais e no solo e as trocas gasosas foliares foram avaliados em plantas submetidas a doses de silicato de cálcio correspondentes a 0 (controle), 1,5 e 6 Mg ha -1 . O delineamento experimental foi em blocos casualizados, com três tratamentos e 3, 4 ou 18 repetições, dependendo da variável considerada. Cada parcela experimental era composta por uma planta. Em relação à altura e matéria seca total, as plantas de todos os tratamentos apresentaram desenvolvimento satisfatório, com incrementos diários compatíveis com o esperado em cafeeiros bem nutridos. Os tratamentos com silicato de cálcio causaram aumento nos teores de Ca no solo e na planta e de Si no solo. Considerando que o único nutriente alterado pelos tratamentos foi o Ca e que os teores observados na planta podem ser considerados não prejudiciais, as respostas descritas a seguir são consequência do alto teor de Si no solo. Após 130 dias do início do experimento, as plantas tratadas com 6 Mg ha -1 de silicato de cálcio apresentaram menor acúmulo de matéria seca nas raízes e aumento da relação entre a matéria seca da parte (1) Recebido para publicação em julho de 2010 e aprovado em março de 2011.

show abstract

Section: Discussionunclassified

Section: Introductionunclassified

O alto teor de silício no solo inibe o crescimento radicular de cafeeiros sem afetar as trocas gasosas foliares

Ribeiro

Silva²,

Ramos³

et al. 2011

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…In sorghum (Sorghum bicolor Moench), application of silicon increased the relative water content and dry mass of plants. It was suggested that the improvement of drought tolerance in sorghum achieved by adding silicon might be associated with enhancement of water uptake ability (Hattori et al, 2005(Hattori et al, , 2007. Addition of silicon also improved water status and increased dry mass of wheat plants in pots under drought (Gong et al,.…”

Section: Silicon Uptake and Accumulation In Plantsmentioning

confidence: 99%

Effects of silicon on plant resistance to environmental stresses: review

Balakhnina¹,

Borkowska²

2013

International Agrophysics

105

View full text Add to dashboard Cite

A b s t r a c t. The role of exogenous silicon in enhancing plant resistance to various abiotic stressors: salinity, drought, metal toxicities and ultraviolet radiation are presented. The data on possible involvement of silicon in reducing the reactive oxygen species generation, intensity of lipid peroxidation, and in some cases, increasing the activity of enzymes of the reactive oxygen species detoxificators: superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase and catalase are analyzed.K e y w o r d s: plant resistance, stress conditions, silicon, antioxidant enzymes EFFECT OF SOIL STRESSES ON PLANTSPlant growth and development is closely related to soil physical processes and properties (Gliñski, 2011;Gliñski et al., 2011). These are mass transport (water, vapour, air, and chemical flow, capillary flow, molecular diffusion, osmosis), mass absorption/desorption, energy transport (heat conduction, convection, radiation), energy adsorption/emission, phase transition (evaporation, condensation, crystallization, melting), mechanical processes (impact, compression, crushing, shearing, tension). Soil conditions based on the enumerated physical factors may create stresses for plant growth and development.Suitability of the environment for normal plant development is determined by the pool of oxygen stored in the soil and by the ability of its continuous supply from the atmosphere. After exhausting of the soil oxygen pool, and without further oxygen supply, plants start to suffer from oxygen stress; the root system perishes, and finally, the whole plant dies (Gliñski et al., 2004). Soil oxygen is one of the most important factors, which even during a short period can severely limit plant development and nutrient uptake, thereby resulting in a significant reduction of yields (Gliñski and Stêpniewski, 1985). Soil aeration is closely connected with the relations of air-water conditions in soils. Imbalance in these relations, for example, by flooding the soil, changes the chemical and physical soil properties, affects the biological activity of soil microorganisms and, consequently, leads to oxygen stress (Gliñski and Stêpniewski, 1985). These relations affect the biological activity of soil organisms, mainly microorganisms which are very sensitive to oxidation or reduction processes (Gliñski and Stêpniewski, 1985). It is expected that oxygen stress depends on various abiotic (soil flooding, drought, soil compaction, salinity, high temperature or a combination of these stresses) and biotic factors. Oxygen deficiency affects the intensity and the direction of a number of physiological and biochemical reactions and induces oxidative stress in the plant cells (Balakhnina et al., 2004). Salt stress is one of the major environmental factors that restrict plant growth and productivity worldwide. Salt causes both ionic as well as osmotic stress on plants (Hejazi Mehrizi et al., 2011;Parvaiz and Satyawati, 2008). A high concentration of Na + causes deficiency in other nutrients in the soil and in...

show abstract

“…55, No. 2 (2017) Lee et al, 2007;Hattori et al, 2007;Sabir and Yazar, 2015). Most of these studies have focused on single time point analysis, whereas very little is known about the effect of light intensity on daily gs fluctuation patterns.…”

Section: Discussionmentioning

confidence: 99%

Influences of LED Light Quality and Intensity on Stomatal Behavior of Three Petunia Cultivars Grown in a Semi-closed System

Sakhonwasee

Tummachai

Nimnoy

2017

Environmental Control in Biology

View full text Add to dashboard Cite

Understanding the effect of light on stomatal behavior is mandatory for plant cultivation under controlled environmental systems. In this study, the effects of LED light quality and intensity on daily stomatal conductance (gs), stomatal aperture movement and stomatal density were investigated in petunia (Petunia hybrida Vilm.) plants under a semi-closed system. Three petunia cultivars, namely 'Coral', 'Purple' and 'Red', were grown under different light quality and quantity for 1 month and then all the parameters were measured. Results showed that 'Coral' exhibited overall higher gs than 'Purple' and 'Red'. Light quality significantly affected gs, width of stomatal aperture and stomatal density of all cultivars. The effect of light quality on gs and width of stomata aperture was strongly depended upon cultivar and time of day and there was a two-way interaction. Light intensity did not affect daily fluctuation pattern of gs but did affect the amplitude of the fluctuation. In contrast to the effect of light quality, the effect of light intensity was independent of cultivar and time of day. There was no obvious correlation between gs and width of either adaxial or abaxial stomata apertures during photoperiod. Light intensity significantly affected stomatal density which could partially explain an increasing of gs in response to increasing light intensity.

show abstract

Short term stomatal responses to light intensity changes and osmotic stress in sorghum seedlings raised with and without silicon

Cited by 87 publications

References 17 publications

O alto teor de silício no solo inibe o crescimento radicular de cafeeiros sem afetar as trocas gasosas foliares

O alto teor de silício no solo inibe o crescimento radicular de cafeeiros sem afetar as trocas gasosas foliares

Effects of silicon on plant resistance to environmental stresses: review

Influences of LED Light Quality and Intensity on Stomatal Behavior of Three Petunia Cultivars Grown in a Semi-closed System

Contact Info

Product

Resources

About