Roles of Memory and Circadian Clock in the Ecophysiological Performance of Plants

Lüttge, Ulrich; Thellier, Michel

doi:10.1007/978-3-319-25688-7_2

Cited by 5 publications

(3 citation statements)

References 153 publications

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“…Although drought can be considered a multidimensional type of stress resulting in physiological, morphological, biochemical and molecular changes, the major drought-related plant responses are controlled at the molecular level, and certain signaling pathways play a central role in the coordination and communication of plant responses to water deficit 38 . One possible response of plants to stress is that they become more resistant to future exposure through the acquisition of memory that induces effects on plant development, leaving epigenetic marks in the genome; these tags will encode memories ( i .…”

Section: Discussionmentioning

confidence: 99%

Recurrent water deficit causes epigenetic and hormonal changes in citrus plants

Neves

Almeida²,

Santana-Vieira

et al. 2017

Sci Rep

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The present study evaluated the physiological, molecular and hormonal parameters from scion/rootstock interaction of citrus plants during recurrent water deficit. Responses of the Valencia (VO) scion variety grafted on two rootstocks with different soil water extraction capacities, Rangpur Lime (RL) and Sunki Maravilha (SM), during three successive periods of water deficit: plants exposed to a single episode of water deficit (WD1) and plants exposed to two (WD2) and three (WD3) recurrent periods of WD were compared. The combinations VO/RL and VO/SM presented polymorphic alterations of epigenetic marks and hormonal (i.e. abscisic acid, auxins and salicylicacid) profiles, which were particularly prominent when VO/SM plantswere exposed toWD3 treatment. Upon successive drought events, the VO/SM combination presented acclimatization characteristics that enable higher tolerance to water deficit by increasing transpiration (E), stomatal conductance (g s) and photosynthetic rate (A), which in turn may have facilitated the whole plant survival. Besides providing comprehensive data on the scion/rootstock interactions upon successive stress events, this study brings the first dataset suggesting that epigenetic alterations in citrus plants triggered by recurrent water deficit lead to improved drought tolerance in this crop species.

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Section: Discussionmentioning

confidence: 99%

Recurrent water deficit causes epigenetic and hormonal changes in citrus plants

Neves

Almeida²,

Santana-Vieira

et al. 2017

Sci Rep

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“…In Higher Plants we distinguish memories with capacities of -Habituation, learning or priming, -Store (STO) and recall (RCL) functions, and -Epigenetic modifications (Thellier et al 1982(Thellier et al , 2011(Thellier et al , 2015(Thellier et al , 2017a(Thellier et al , b, 2004(Thellier et al , 2013Thellier and Lüttge 2013;Hütt et al 2015;Lüttge and Thellier 2016).…”

Section: Can Memory Affect or Even Determine What Emerges From Integrmentioning

confidence: 99%

“…The STO/RCL-memory is more complex with the involvement of STO and RCL genes. External stimuli and environmental cues elicit various signals which release effectors and may also involve the biological clock in some cases (Hütt et al 2015;Lüttge and Thellier 2016). These effectors unlock and activate STO and RCL genes, the products of which cause the emergence of processes of life (Fig.…”

Section: Can Memory Affect or Even Determine What Emerges From Integrmentioning

confidence: 99%

Integrative emergence in contrast to separating modularity in plant biology: views on systems biology with information, signals and memory at scalar levels from molecules to the biosphere

Lüttge

2021

Theor. Exp. Plant Physiol.

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Modularity is reductionism and materialism, where modules are considered as building blocks per se. By contrast self-organization of modules in living organisms, like plants, generates the emergence of integrated systems with new properties not predicted by the properties of the modules. This can occur at the hierarchy of a series of scalar levels, where emergent systems become modules for emergence of new systems on the next higher scalar level akin to a hierarchy of networks from molecules, cells and individuals up to the levels of ecosystems, biomes and the entire biosphere or Gaia. The systems on these levels are holobiont-like systems, i.e., central organisms in interaction with all their associated organisms as a unit for selection in evolution. Systems biology, now a modern aspect of plant biology, has started with the advancement of whole-plant physiology in the early 1970s unraveling the roles of signaling for integration and cooperation of parts or modules in the performance of entire plants. Fixation of information in plant memory and emergence from such storage rules the timing of events of emergence. With the enthusiasm promoted by the creative self-organization of modules into the emergence of exciting new systems, biology diverts from the reductionism and materialism of bare modularity. Understanding emergence helps to advance on the rocky paths towards understanding the complexity of life.

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Discovery of the Existence of Memory in Bidens Seedlings

Thellier

2017

Plant Responses to Environmental Stimuli

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Roles of Memory and Circadian Clock in the Ecophysiological Performance of Plants

Cited by 5 publications

References 153 publications

Recurrent water deficit causes epigenetic and hormonal changes in citrus plants

Recurrent water deficit causes epigenetic and hormonal changes in citrus plants

Integrative emergence in contrast to separating modularity in plant biology: views on systems biology with information, signals and memory at scalar levels from molecules to the biosphere

Discovery of the Existence of Memory in Bidens Seedlings

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