Physiological Effects of 1-Methylcyclopropene on Well-Watered and Water-Stressed Cotton Plants

Kawakami, Eduardo M.; Oosterhuis, Derrick M.; Snider, John L.

doi:10.1007/s00344-009-9134-3

Cited by 52 publications

(43 citation statements)

References 46 publications

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“…For example, ethylene can reduce lodging in wheat (Triticum aestivum) and barley (Hordeum vulgare) by shortening the stem, therefore improving grain yield and quality. Studies have shown that inhibitors of ethylene biosynthesis and perception can mitigate yield loss by enhancing plant tolerance to abiotic stresses, such as drought, heat, and a combination of both (Hays et al, 2007;Kawakami et al, 2010Kawakami et al, , 2013Huberman et al, 2014). This study explores the potential to improve crop performance by modifying ethylene sensitivity.…”

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confidence: 99%

Overexpression of ARGOS Genes Modifies Plant Sensitivity to Ethylene, Leading to Improved Drought Tolerance in Both Arabidopsis and Maize

et al. 2015

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Lack of sufficient water is a major limiting factor to crop production worldwide, and the development of drought-tolerant germplasm is needed to improve crop productivity. The phytohormone ethylene modulates plant growth and development as well as plant response to abiotic stress. Recent research has shown that modifying ethylene biosynthesis and signaling can enhance plant drought tolerance. Here, we report novel negative regulators of ethylene signal transduction in Arabidopsis (Arabidopsis thaliana) and maize (Zea mays). These regulators are encoded by the ARGOS gene family. In Arabidopsis, overexpression of maize ARGOS1 (ZmARGOS1), ZmARGOS8, Arabidopsis ARGOS homolog ORGAN SIZE RELATED1 (AtOSR1), and AtOSR2 reduced plant sensitivity to ethylene, leading to enhanced drought tolerance. RNA profiling and genetic analysis suggested that the ZmARGOS1 transgene acts between an ethylene receptor and CONSTITUTIVE TRIPLE RESPONSE1 in the ethylene signaling pathway, affecting ethylene perception or the early stages of ethylene signaling. Overexpressed ZmARGOS1 is localized to the endoplasmic reticulum and Golgi membrane, where the ethylene receptors and the ethylene signaling protein ETHYLENE-INSENSITIVE2 and REVERSION-TO-ETHYLENE SENSITIVITY1 reside. In transgenic maize plants, overexpression of ARGOS genes also reduces ethylene sensitivity. Moreover, field testing showed that UBIQUITIN1:ZmARGOS8 maize events had a greater grain yield than nontransgenic controls under both drought stress and well-watered conditions.There is an increasing demand for food and feed due to global population growth, urbanization, and rapid middle-class emergence. Lack of water limits crop yields worldwide; Bot et al. (2000) estimated that 45% of agricultural lands are subject to continuous or frequent drought conditions. Drought-tolerant varieties can reduce the impact of drought on crop productivity. The phytohormone ethylene regulates many aspects of plant growth and development, from seed germination, leaf expansion, and floral transition to organ senescence, fruit ripening, and the response to abiotic stresses, such as drought, high temperature, freezing, shading, and nutrient deficiency. Ethylene is one of the most widely used hormones in agriculture to increase yield and reduce production costs. For example, ethylene can reduce lodging in wheat (Triticum aestivum) and barley (Hordeum vulgare) by shortening the stem, therefore improving grain yield and quality. Studies have shown that inhibitors of ethylene biosynthesis and perception can mitigate yield loss by enhancing plant tolerance to abiotic stresses, such as drought, heat, and a combination of both (Hays et al., 2007;Kawakami et al., 2010Kawakami et al., , 2013Huberman et al., 2014). This study explores the potential to improve crop performance by modifying ethylene sensitivity.At the molecular level, ethylene responses in Arabidopsis (Arabidopsis thaliana) are initiated by the binding of ethylene to a family of endoplasmic reticulum (ER)-and Golgi membrane-localized receptors...

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confidence: 99%

Overexpression of ARGOS Genes Modifies Plant Sensitivity to Ethylene, Leading to Improved Drought Tolerance in Both Arabidopsis and Maize

et al. 2015

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“…Water regimes of 80%, 60%, 40% and 20% of evapotranspiration replacement caused reductions of 15.2%, 24.9%, 29.2% and 28.0%, respectively. Kawakami et al (2010) also found that water-stressed cotton plants exhibited a significantly lower number of nodes than well-watered plants. This reduction was related to the decrease in height, since, according to Singh et al (2006), the number of nodes decreases with decreasing plant height.…”

Section: Resultsmentioning

confidence: 82%

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2017

Rev. ambiente água

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The Water Safety Plan (WSP) approach is an iterative method focused on analyzing the risks of water contamination in a drinking water supply system, from catchment to consumer, in order to protect human health. This approach is aimed at identifying and drastically reducing water contamination in the entire drinking water system, through the identification and mitigation or, if possible, elimination of all factors that may cause a chemical, physical, microbiological and radiological risk for water. This study developed a proposal of WSP for the drinking water supply system (DWSS) of Mortara, Italy, in order to understand which are the preliminary evaluation aspects to be considered in the elaboration of a WSP. The DWSS of Mortara (a town of 15,500 inhabitants, located in northern Italy) consists of three drinking water treatment plants (DWTPs), considering the following main contaminants: arsenic, iron, manganese and ammonia. Potential hazardous events and associated hazards were identified in each part of the water supply system. The risk assessment was carried out following the semi-quantitative approach. The WSP proposal for Mortara was very useful not only as a risk mitigation approach, but also as a cost-effective tool for water suppliers. Furthermore, this approach will reduce public health risk, ensure a better compliance of water quality parameters with regulatory requirements, increase confidence of consumers and municipal authorities, and improve resource management due to intervention planning. Further, some new control measures are proposed by the WSP team within this work.Keywords: arsenic, drinking water, risk assessment, risk management, water safety plan. desde a captação ao consumidor, visando à proteçãoda saúde humana. Objetiva-se identificar e reduzir drasticamente a contaminação da água em todo o sistema de água potável pela identificação e mitigação ou, se possível, a eliminação de todos os fatores que podem causar um risco químico, físico, microbiológico e radiológico para a água. Este estudo desenvolveu uma proposta de PSA para o sistema de abastecimento de água potável de Mortara (Itália), a fim de compreender quais são os aspectos de avaliação preliminar a serem considerados na elaboração de um PSA. O sistema de abastecimento de água potável de Mortara (uma cidade de 15.500 habitantes, localizada no norte da Itália) consiste em três estações de tratamento de água, considerando os seguintes contaminantes principais: arsênio, ferro, manganês e amônia. Eventos perigosos potenciais e riscos relacionados foram identificados em cada parte do sistema de abastecimento de água. A avaliação do risco foi realizada seguindo a abordagem semi-quantitativa. A proposta do PSA para o sistema de abastecimento de água potável de Mortara contribuirá para reduzir os riscos à saúde pública, assegurar um melhor cumprimento dos parâmetros de qualidade da água, dos requisitos regulamentares, do aumento da confiança dos consumidores e autoridades municipais, assim como melhorar a gestão de recursos devido ...

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“…There is no existing technology available for use of 1-MCP in an open environment as it is a gas at ambient conditions, although it has been shown that 1-MCP can potentially protect crops from environmental stresses such as drought to reduce yield loss (Kawakami & Oosterhuis, 2006;Kawakami et al, 2010). Our invented B-MCP complexes (Figure 2) have shown enormous potential for open field applications as they are stable under ambient conditions owing to higher boiling points than 1-MCP and capable of releasing 1-MCP for a long time period from hours to days depending on their structural differences and availability of moisture.…”

Section: Resultsmentioning

confidence: 99%

“…By this mechanism, extreme weather, such as drought, can cause yield losses of grain crops, such as corn, wheat, and rice, etc. In this case, application of 1-MCP in fields is expected to play a role in yield protection as a pre-harvest treatment (Kawakami, Oosterhuis & Snider, 2010). The use of 1-MCP in an open field indicates a huge potential, since about 45% of the total world's agricultural lands are subjected to continuous or frequent drought conditions (Bot, Nachtergaele & Young, 2000).…”

Section: Introductionmentioning

confidence: 99%

Impact of Different Environmental Stimuli on the Release of 1-MCP from Boron-MCP Complexes

Shahrin

Sarker

Zhang³

et al. 2016

JPS

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In our previous report, boron derivatives of methylene cyclopropane complexes (B-MCP) were developed to stabilize the gaseous 1-MCP (1-methylcyclopropene), a commercial plant growth regulator, for eventual release in open crop fields when under humid conditions or in contact with water. To meet the requirements of various end-use applications, B-MCP compounds that can release 1-MCP at different rates for different time periods are demanded. In this paper, we examined the impact of different environmental stimuli such as humidity, surface area, water pH and water volume on the release kinetics of 1-MCP from B-MCP compounds of various chemical structures. The results showed that the release of 1-MCP from B-MCP compounds can be tailored by altering the architectures and chemical natures of the two short-chain moieties attached to the boron atom and thus either the electronic affinity or the hydrophobic or hydrophilic properties or both.

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Physiological Effects of 1-Methylcyclopropene on Well-Watered and Water-Stressed Cotton Plants

Cited by 52 publications

References 46 publications

Overexpression of ARGOS Genes Modifies Plant Sensitivity to Ethylene, Leading to Improved Drought Tolerance in Both Arabidopsis and Maize

Overexpression of ARGOS Genes Modifies Plant Sensitivity to Ethylene, Leading to Improved Drought Tolerance in Both Arabidopsis and Maize

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Impact of Different Environmental Stimuli on the Release of 1-MCP from Boron-MCP Complexes

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