A roadmap towards a functional paradigm for learning &amp; memory in plants

Michmizos, Dimitrios; Hilioti, Zoe

doi:10.1016/j.jplph.2018.11.002

Cited by 16 publications

(9 citation statements)

References 115 publications

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“…As we have shown, the best expression of these cognitive skills and of the richness and complexity of the plant life (or of tree interactions in the forest) can be obtained by continuous in situ electrophytographic (EPG) recordings in natural conditions (rather than in laboratories). They lead to the observation of complex emerging behaviors, according to the establishment of exhaustive criteria such as those previously described or still recently shown by Michmizos & Hilioti (2018) about learning capacities and plant memory [85]. These authors discuss in particular the presence or not of internal representations of the outside world and of encoding in the form of engrams that may involve actin networks and feedback of the information learned, qualified as intelligent, but who are undoubtedly endowed with sensitivity and a cognitive aptitude which does not call upon any intentionality or subjectivity.…”

Section: Learning and Complex Behaviorsmentioning

confidence: 96%

Electrome & Cognition Modes in Plants: A Transdisciplinary Approach to the Eco-Sensitiveness of the World

Debono¹

2020

tjes

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Recent studies on plant-environment and plant-human relationships reveal the need to reassess thescales of perception, sensitiveness and cognition of living systems. The complexity of plant's emergingbehaviors in interaction with the environment is supported by the signature of the electrome and theplant sensorium, a strong argument to establish the singularity of the living and weights its consequencesin evolutionary, ecological or socioeconomic terms. This paper highlights the cognitive value of access tothe experience of plants and its fundamentally mesological or ecoplastic nature, that is to say in directconnection with a singular milieu. This dynamic coupling makes it possible to explain the co-construction ofan intelligible and sensible world without the use of a brain, principle that reframes the concept of intelligentbehavior while revealing both the frontiers in cognition and the strong transdisciplinary challenges of anacute awareness of the man's fragility as of the planetary ecosystem at the era of the Antropocene.

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Section: Learning and Complex Behaviorsmentioning

confidence: 96%

Electrome & Cognition Modes in Plants: A Transdisciplinary Approach to the Eco-Sensitiveness of the World

Debono¹

2020

tjes

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“…Further research then showed the same mechanism was also present outside of mammals, in sea slugs. More recently, molecular and other subcellular aspects of LTP have been identified that appear to subserve memory not only in animals, but also (homologously) in plants, although more research is needed (Michmizos and Hilioti 2019).…”

Section: The Garage Doors Of Cognitionmentioning

confidence: 99%

Zoocentrism in the weeds? Cultivating plant models for cognitive yield

Linson

Calvo

2020

Biol Philos

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It remains at best controversial to claim, non-figuratively, that plants are cognitive agents. At the same time, it is taken as trivially true that many (if not all) animals are cognitive agents, arguably through an implicit or explicit appeal to natural science. Yet, any given definition of cognition implicates at least some further processes, such as perception, action, memory, and learning, which must be observed either behaviorally, psychologically, neuronally, or otherwise physiologically. Crucially, however, for such observations to be intelligible, they must be counted as evidence for some model. These models in turn point to homologies of physiology and behavior that facilitate the attribution of cognition to some non-human animals. But, if one is dealing with a model of animal cognition, it is tautological that only animals can provide evidence, and absurd to claim that plants can. The more substantive claim that, given a general model of cognition, only animals but not plants can provide evidence, must be evaluated on its merits. As evidence mounts that plants meet established criteria of cognition, from physiology to behavior, they continue to be denied entry into the cognitive club. We trace this exclusionary tendency back to Aristotle, and attempt to counter it by drawing on the philosophy of modelling and a range of findings from plant science. Our argument illustrates how a difference in degree between plant and animals is typically mistaken for a difference in kind.

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“…The responses to a given external stimulus are dependent on several factors, among which stand out the plant genotype, the developmental phase, and the intensity and number of exposures to the likely stressful conditions. Early exposure (priming) to an external stimulus can prepare a plant against possible future stress and often improve the future responses by promoting a state of acclimatisation that may persist until a subsequent similar stimulus (Thellier and Lüttge 2013, Crisp et al 2016, Michmizos and Hilioti 2019).…”

Section: Introductionmentioning

confidence: 99%

Metabolism of abscisic acid in two contrasting rice genotypes submitted to recurrent water deficit

Auler

Amaral

Rossatto

et al. 2020

Physiologia Plantarum

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Drought is the main constrain for crops worldwide, however, the effects of recurrent water deficit remain still hidden. We analysed two rice genotypes, 'BRS-Querência' (lowlands) and 'AN-Cambará' (uplands), after 7 days of recurrent drought followed by 24 h of rehydration, hypothesising that genotypes grown in regions with different water availabilities respond differently to water deficits, and that a previous exposure to stress could alter abscisic acid (ABA) metabolism. The results showed that both genotypes reduced stomatal conductance and increased ABA concentration. After rehydration, the ABA levels decreased, mainly in the plants of BRS-Querência subjected to recurrent stress. However, the levels of ABA were higher in plants in recurrent water deficit compared to non-recurrent stress plants in both genotypes. Remarkably in the lowland genotype, the ABA glucosyl-ester (ABA-GE) concentration increased after recovery in the plants under recurrent stress. Regarding of gene expression, the genes associated in ABA biosynthesis with the highest expression levels were NCED2, NCED3, NCED4 and AAO2. However, 'AN-Cambará' showed less transcriptional activation. Taking into account the genes involved in ABA catabolism, ABAH1 appears to play an important role related to the recurrent stress in upland plants. These results indicate that one of the factors that can promote greater tolerance for the upland genotype is the tradeoff between ABA and ABA-GE when plants are subjected to water deficits. In addition, they indicate that abscisic acid metabolism is altered due to the genotype (upland or lowland) and pre-exposure to stress can also modify adaptive responses in rice varieties (recurrent stress).

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A roadmap towards a functional paradigm for learning & memory in plants

Cited by 16 publications

References 115 publications

Electrome & Cognition Modes in Plants: A Transdisciplinary Approach to the Eco-Sensitiveness of the World

Electrome & Cognition Modes in Plants: A Transdisciplinary Approach to the Eco-Sensitiveness of the World

Zoocentrism in the weeds? Cultivating plant models for cognitive yield

Metabolism of abscisic acid in two contrasting rice genotypes submitted to recurrent water deficit

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