Silicon alleviates salt stress and increases antioxidant enzymes activity in leaves of salt-stressed cucumber (Cucumis sativus L.)

Zhu, Zhujun; Wei, Guoqiang; Li, Juan; Qian, Qiongqiu; Yu, Jingquan

doi:10.1016/j.plantsci.2004.04.020

Cited by 718 publications

(359 citation statements)

References 40 publications

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“…Neither grain yield nor straw biomass were significantly increased following treatments with Si fertilizers in our experiment when compared with the NPK treatment, although it is well known that Si fertilizers can promote plant growth which has been observed in many plants, including peanut, maize, and cucumber (Zhu et al 2004;Da Cunha and Do Nascimento 2009;Shi et al 2010). This may be because not enough available Si was added to the soil to significantly influence grain yield and straw biomass or the amount of available Si in the soil is already high enough for rice growth.…”

Section: Plant Growth and Biomasscontrasting

confidence: 57%

Mitigation of cadmium and arsenic in rice grain by applying different silicon fertilizers in contaminated fields

Wang

Wen

Chen

et al. 2015

Environ Sci Pollut Res

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A field experiment was established to support the hypothesis that application of different silicon (Si) fertilizers can simultaneously reduce cadmium (Cd) and arsenic (As) concentration in rice grain. The Bsemi-finished product of Si-potash fertilizer^treatment at the high application of 9000 kg/ha (NP+S-KSi9000) significantly reduced the As concentration in rice grain by up to 20.1 %, compared with the control. Si fertilization reduces the Cd concentration in rice considerably more than the As concentration. All Si fertilizers apart from sodium metasilicate (Na 2 SiO 3 ) exhibited a high ability to reduce Cd concentration in rice grain. The Sicalcium (CaSi) fertilizer is the most effective in the mitigation of Cd concentration in rice grain. The CaSi fertilizer applied at 9000 kg/ha (NPK+CaSi9000) and 900 kg/ha (NPK+CaSi900) reduced the Cd concentration in rice grain about 71.5 and 48.0 %, respectively, while the Si-potash fertilizer at 900 kg/ ha (NP+KSi900), the semi-finished product of Si-potash fertilizer at both 900 kg/ha (NP+S-KSi900) and 9000 kg/ha (NP+S-KSi9000), and the rice straw (NPK+RS) treatments reduced the Cd concentration in rice grain about 42, 26.5, 40.7, and 23.1 %, respectively. The results of this investigation demonstrated the potential effects of Si fertilizers in reducing Cd and As concentrations in rice grain.

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Section: Plant Growth and Biomasscontrasting

confidence: 57%

Mitigation of cadmium and arsenic in rice grain by applying different silicon fertilizers in contaminated fields

Wang

Wen

Chen

et al. 2015

Environ Sci Pollut Res

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“…Increased activity of antioxidant enzymes of salt tolerant ecotypes in response to salt stress imply that ROS-scavenging might be a part of the general adaptive strategy of plants exposed to salinity (Zhu et al, 2004). In the present investigation, the activity of antioxidant enzymes (except for POD) showed a progressive increase in both ecotypes (especially the Siyah Shiraz) at all salt concentrations (Figure 3).…”

Section: Abscisic Acidsupporting

confidence: 51%

“…HEPES buffer (25 mM, pH 7.8) containing 0.2 mM EDTA, 2% PVP and 2 mM ascorbate was used for APX (EC 1.11.1.11) extraction. Enzyme activity was determined according to Zhu et al (2004) protocol. The activities of all four enzymes were expressed as U mg -1 protein.…”

Section: Activities Of Antioxidant Enzymesmentioning

confidence: 99%

Divergences in Hormonal and Enzymatic Antioxidant Responses of Two Chicory Ecotypes to Salt Stress1

Ghanaatian

Sadeghi

2016

Planta daninha

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-Salinity is among the most common and severe abiotic stresses that drastically affects crop productivity all over the world. To evaluate the effect of salt stress on seed germination, early growth, antioxidant enzyme activity and ABA content of chicory ecotypes (Cichorium intybus), a factorial experiment was conducted at College of Agriculture, Shiraz University in 2014 based on completely randomized design with four replications. The treatments comprised five salinity levels (tap water, 3, 6, 9, 12 dS m -1 ) of sodium chloride on the ecotypes of Sefid Shiraz and Siyah Shiraz. The results showed that germination characteristics and primary seedling growth decreased in both ecotypes with increasing in salinity severity. The effects of salinity on radicle and plumule length as well as seedling weight were the same as its effects on seed germination. The effect of salt stress on antioxidant enzyme activity (especially catalase) and ABA content were significant which they were enhanced with increasing salinity level; the Siyah Shiraz ecotype performs better than the Sefid Shiraz under high salinity, as indicated by lower decrease in germination characteristics and primary growth and higher antioxidant enzyme activity as well as ABA content. These facts should be taken into consideration in the economic cultivation of this valuable horticultural and medicinal plant and this data would be useful for the crop breeding projects.Keywords: salt stress, chicory ecotypes, germination characteristics, antioxidant enzyme activity. RESUMO -

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“…Lipid peroxidation was followed by the measurement of malondialdehyde (MDA) accumulation according to El-Moshaty et al (1993). The activity of the superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) enzymes was assayed according to McCord & Fridovich (1969), Aebi (1984) and the modified method of Zhu et al (2004), respectively. In all the enzyme preparations, protein was measured by the Coomassie Blue method (Bradford 1976), using BSA as a standard.…”

Section: Methodsmentioning

confidence: 99%

Attenuation of low-temperature stress in rice seedlings

Grohs

Marchesan

Roso

et al. 2016

Pesqui. Agropecu. Trop.

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Rice is a cold-sensitive crop, and its exposure to low-temperature stress, during germination and early seedling growth, can negatively affect the initial stand establishment. Substances that act as growth regulators can be used to mitigate this initial stress. Thus, the influence of gibberellic acid, thiamethoxam and a phytohormone was investigated at the growth variables and antioxidant enzyme activity of the 'Irga 424' and 'Puita Inta CL' rice cultivars, at low-temperature (17 ºC). The products act on the germination percentage of 'Puita Inta CL', but vigor is only influenced by giberellic acid. Giberellic acid influences shoot length, irrespective of cultivar, while thiamethoxam and the phytohormone only affect length in 'Puita Inta CL'. The antioxidant activity depends on the cultivar and organ tested (shoot or root). These products mitigate the effects of cold, thereby preventing the formation of reactive-oxygen species and lipid peroxidation, and positively influence the superoxide dismutase enzyme activity.

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Silicon alleviates salt stress and increases antioxidant enzymes activity in leaves of salt-stressed cucumber (Cucumis sativus L.)

Cited by 718 publications

References 40 publications

Mitigation of cadmium and arsenic in rice grain by applying different silicon fertilizers in contaminated fields

Mitigation of cadmium and arsenic in rice grain by applying different silicon fertilizers in contaminated fields

Divergences in Hormonal and Enzymatic Antioxidant Responses of Two Chicory Ecotypes to Salt Stress1

Attenuation of low-temperature stress in rice seedlings

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