Research progress on electrical signals in higher plants

Yan, Xiaofei; Wang, Zhongyi; Huang, Lan; Wang, Cheng; Hou, Ruifeng; Zhang, Xu; Qiao, Xuejun

doi:10.1016/j.pnsc.2008.08.009

Cited by 109 publications

(77 citation statements)

References 80 publications

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“…Although most studies focus on signals of chemical or hydraulic nature, electrical signaling has received increasing attention in recent years. Although the first extracellular electrical measurements in plants date from the 19th century [190], Fromm and Eschrich [191] were among the first to hypothesize that changes in the electrical signals might be a mechanism of communication between roots and leaves. Since then, an increasing amount of evidence suggests that the bioelectric potential in plants is affected by a variety of environmental changes, including soil water availability.…”

Section: Electrical Potentialmentioning

confidence: 99%

Plant-Based Methods for Irrigation Scheduling of Woody Crops

Fernández

2017

Horticulturae

139

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Abstract:The increasing world population and expected climate scenarios impel the agricultural sector towards a more efficient use of water. The scientific community is responding to that challenge by developing a variety of methods and technologies to increase crop water productivity. Precision irrigation is intended to achieve that purpose, through the wise choice of the irrigation system, the irrigation strategy, the method to schedule irrigation, and the production target. In this review, the relevance of precision irrigation for a rational use of water in agriculture, and methods related to the use of plant-based measurements for both the assessment of plant water stress and irrigation scheduling, are considered. These include non-automated, conventional methods based on manual records of plant water status and gas exchange, and automated methods where the related variable is recorded continuously and automatically. Thus, the use of methodologies based on the Scholander chamber and portable gas analysers, as well as those of systems for measuring sap flow, stem diameter variation and leaf turgor pressure, are reviewed. Other methods less used but with a potential to improve irrigation are also considered. These include those based on measurements related to the stem and leaf water content, and to changes in electrical potential within the plant. The use of measurements related to canopy temperature, both for direct assessment of water stress and for defining zones with different irrigation requirements, is also addressed. Finally, the importance of choosing the production target wisely, and the need for economic analyses to obtain maximum benefit of the technology related to precision irrigation, are outlined.

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Section: Electrical Potentialmentioning

confidence: 99%

Plant-Based Methods for Irrigation Scheduling of Woody Crops

Fernández

2017

Horticulturae

139

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“…11 The best studied, the most effective and fastest cell-to-cell communication in plants is electrical signalling, in vascular plants, via vascular tissue. [12][13][14] This ] c due to the abundance of depolarisation-activated cation channels.…”

Section: Introductionmentioning

confidence: 99%

Signal percolation through plants and the shape of the calcium signature

Plieth

2010

Plant Signaling & Behavior

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“…The consistency of the change of PSE, SEF and SCF indicates that the changes of SEF, SCF and PSE are adaptive responses of plants to injury. Because the changes in plant electrical signal are earlier than the various physiological changes and the morphological changes [2,[33][34]. Thus, responses of plant to stress can quickly and accurately judge according to signal changes.…”

Section: Discussionmentioning

confidence: 99%