The Arabidopsis thaliana natriuretic peptide AtPNP-A is a systemic regulator of leaf dark respiration and signals via the phloem

Ruzvidzo, Oziniel; Donaldson, Lara; Valentine, Alex J.; Gehring, Chris

doi:10.1016/j.jplph.2011.03.011

Cited by 24 publications

(17 citation statements)

References 39 publications

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“…11 This means that artIcLe addendum but given the velocity, we have hypothesized that it could be electrical. 5 Long distance electrical signaling can invoke action potentials or variation potentials. 22 Action potentials are phloem transmitted rapid self-propagating waves of membrane depolarization with constant velocity and amplitude.…”

Section: Feedback-regulation Of Pnp Productionmentioning

confidence: 99%

“…The "electrical signal" hypothesis is supported by the previous findings that PNPs can cause rapid and significant membrane depolarization, 23 induce rapid ion fluxes 24,25 as well as promote the movement of water out of the xylem. 26 In conclusion, since local increases of PNP can have marked influences on plant function distantly, 5 it therefore becomes evident that for the plant it is highly important to maintain levels of PNP within a defined range at the local level where it is produced. Hence rapid responses in the leaves to abiotic or biotic stresses will increase transcription and production of PNP at the local level.…”

Section: Feedback-regulation Of Pnp Productionmentioning

confidence: 99%

“…Hence rapid responses in the leaves to abiotic or biotic stresses will increase transcription and production of PNP at the local level. 6 This in turn will result in "electrical" signals altering distant plant homeostasis events such as dark respiration and photosynthetic rates 5 so that plant homeostasis is modulated to respond the stress. dynamic equilibrium of the total PNP pool in circulation.…”

Section: Feedback-regulation Of Pnp Productionmentioning

confidence: 99%

“…This response pattern is indicative of a signal with phloem mobility that rapidly influences plant homeostasis in distal parts. 5 The exact nature of the long distance signal is still under investigation, turning on transcription regulators and turning off negative controllers can happen at the same time, and vice versa. Perhaps, this is a universal rule in the plant hormone regulation.…”

Section: Pnp As a Systemic Signal For Plant Homeostasismentioning

confidence: 99%

“…1,2 In addition, PNP affects plant biological activities such as photosynthesis and respiration both locally and at long distances. [3][4][5] Moreover, we recently demonstrated that PNPs were secreted into the apoplast and their expression was upregulated under several stress conditions and importantly PNP was able to modulate its own expression. 6 Therefore, here we attempt to further address the control mechanisms of PNP production in planta and the relationship between PNP and plant homeostasis.…”

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Plant natriuretic peptides

Wang

Donaldson

Gehring

et al. 2011

Plant Signaling & Behavior

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Plant natriuretic peptides (PNPs) are immunological analogs of mammalian atrial natriuretic peptides that have homeostatic roles in plants. We have previously demonstrated that PNPs and PNP analogs have an emerging role in the regulation of ion fluxes, stomatal movement and fluid circulation in plants. 1,2 In addition, PNP affects plant biological activities such as photosynthesis and respiration both locally and at long distances. 3-5Moreover, we recently demonstrated that PNPs were secreted into the apoplast and their expression was upregulated under several stress conditions and importantly PNP was able to modulate its own expression.6 Therefore, here we attempt to further address the control mechanisms of PNP production in planta and the relationship between PNP and plant homeostasis.

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Section: Feedback-regulation Of Pnp Productionmentioning

confidence: 99%

Section: Feedback-regulation Of Pnp Productionmentioning

confidence: 99%

Section: Feedback-regulation Of Pnp Productionmentioning

confidence: 99%

Section: Pnp As a Systemic Signal For Plant Homeostasismentioning

confidence: 99%

mentioning

confidence: 99%

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Plant natriuretic peptides

Wang

Donaldson

Gehring

et al. 2011

Plant Signaling & Behavior

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Plant Natriuretic Peptides

Gehring¹

2019

Encyclopedia of Life Sciences

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Plant natriuretic peptides (PNPs) belong to a growing number of plant peptide hormones. PNPs were first immuno‐affinity purified from ivy with an antibody against the vertebrate atrial natriuretic peptide (ANP) and were shown to affect a number of physiological responses, including stomatal movements and abiotic and biotic stress responses. PNPs are secreted into the apoplastic space and are systemically mobile. They act at nanomolar concentrations and in a 3′,5′‐cyclic guanosine monophosphate (cGMP)‐dependent manner. The Arabidopsis thaliana PNP (AtPNP‐A) is distantly related to expansins, but it does not contain a wall‐binding domain consistent with its systemic mode of action. The first AtPNP‐A receptor (AtPNP‐R1) is a novel leucine‐rich repeat receptor kinase located in the cell membrane and harbours a functional guanylyl cyclase in the cytosolic part essential for cGMP‐dependent responses. Finally, PNPs have also been acquired by several plant pathogens through ancient horizontal gene transfer and interfere with host defences to the detriment of their hosts. Key Concepts Most currently established plant hormones are small molecules that can act on the site of synthesis or at a distance from their site of synthesis, within or between plants. Plant peptide hormones are a new and rapidly expanding class of plant hormones that have important roles in growth, development and responses to the environment and in particular the defence against pathogens. Plant peptide hormones, including plant natriuretic peptides (PNPs), are systemically mobile and can signal through membrane‐associated receptor kinases some of which harbour functional guanylyl cyclase catalytic centres capable of converting GTP to cGMP. cGMP, in turn, is a key messenger in plant responses to the environment that enables and modulates downstream responses including cGMP‐dependent protein phosphorylation and the activation of cyclic nucleotide‐gated channels (CNGCs). Animal natriuretic peptides (ANPs), although not orthologs of PNPs, can trigger similar responses in plants, and both can act as ligands for their membrane‐associated receptors that harbour guanylyl cyclases capable of generating cGMP from GTP. PNPs have been acquired by some plant pathogens through ancient horizontal gene transfer (HGT). These pathogens make use of the plant peptide hormones to interfere with host defences to their advantage and the detriment of the host. The use of horizontally acquired PNPs in plant pathogens can afford new insights into host‐pathogen biology and may inform novel approaches to pest control.

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Infrared Gas Analysis Technique for the Study of the Regulation of Photosynthetic Responses

Valentine

Ruzvidzo

Kleinert

et al. 2013

Cyclic Nucleotide Signaling in Plants

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Homeostatic maintenance of physiological and biochemical processes is a key requirement for survival and adaptive responses of multicellular organisms such as plants. These important processes are in part mediated by various plant enzymes and hormones, many of which are in part, controlled by cyclic nucleotides and/or other signalling molecules. Infrared gas analysis (IRGA) technique is one of the modern methods which allows for rapid and accurate measurements of cyclic nucleotide mediated photosynthetic responses to plant hormones, and thus makes it a powerful and useful tool to study aspects of downstream cell signalling events in plants. In this chapter the basic protocols enabling the use of the IRGA technique to study signalling molecules, such as cyclic nucleotides on photosynthetic responses, are outlined.

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The Arabidopsis thaliana natriuretic peptide AtPNP-A is a systemic regulator of leaf dark respiration and signals via the phloem

Cited by 24 publications

References 39 publications

Plant natriuretic peptides

Plant natriuretic peptides

Plant Natriuretic Peptides

Infrared Gas Analysis Technique for the Study of the Regulation of Photosynthetic Responses

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