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Thiol reduction systems: linking stress signalling to plant development

100%

Reichheld J.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2013

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tom 94

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nr 2

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Relationship between jasmonates and ethylene in regulation of some physiological processes in plants under stress conditions

80%

Saniewski M., Ueda J., Miyamoto K., Urbanek H.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2002

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tom 481

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nr 1

A relationship between jasmonates and ethylene in regulation of some physiological processes in plants under stress conditions is presented. Jasmonates are naturally occurring plant hormones showing various important biological activities in the regulation of plant growth development and in defense responses against a wide variety of abiotic and biotic agents. Jasmonates have been reported to control ethylene biosynthesis in intact plants and their organs. Mechanical wounding and other abiotic (osmotic stress, water deficit, dessication stress, heavy metals, touch, ozone) and biotic stresses (pathogen infection and insect invasion) are well known to be common factors inducing ethylene and jasmonates biosynthesis, and reactive oxygen species generation (ROS). Jasmonates have been well known to interact with ethylene in regulation of different processes; various kinds of interactions were documented: 1) synergistic interaction (i.e gene expression of proteinase inhibitors, osmotin, defensin), 2) ethylene suppresses processes induced by jasmonates (i.e. biosynthesis of nicotine, vegetative storage proteins and lectins), 3) jasmonates suppress processes induced by ethylene (i.e. ethylene-induced apical hook). Jasmonic acid carboxyl methyltransfe- rase (JMT) is a key enzyme for jasmonate-regulated plant responses. Activation of JMT expression leads to production of methyl jasmonate (JA-Me). JA-Me can act as an intracellular regulator, a diffusible intercellular signal transducer, or an airborne signal mediating intra- and interplant communications. Jasmonates represent an integral part of the signal transduction chain between stress signals) and stress responses(s), in most cases of the induction of gene expression and the accumulation of defense specific proteins and secondary metabolites.

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Could volatile plant aromatic aldehydes be an airborne stress signal?

80%

Godon K., Malinowski J., Podstolski A.

Biological Letters

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2005

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tom 42

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nr 2 Spec.Vol.

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Role of conducting systems in the transduction of long-distance stress signals

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Starck Z.

Acta Physiologiae Plantarum

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2006

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tom 28

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nr 3

This review presents recent knowledge concerning integration between the reception of signals about abiotic or biotic stress conditions and the delivery of information to individual, even remote organs. In further consequence - physiological processes are affected e.g. pattern of biomass partitioning and growth. Strategy of optimal distribution of photosynthates increases the acclimation to stresses. Special attention is paid to the role of phloem and xylem as a superhighway, rapidly transmitting signals as well as products of stress gene expression: RNAs, proteins, transcription factors. The regulation of plant responses to adverse conditions is carried from the molecular to the whole organism level, not only by the modulation of gene expression, their stimulation and silencing, but also by a post-transcriptional control. Various signalling molecules including hormones, salicylic acid and systemin, play a pivotal role in the regulation of plant response to stresses. They are trafficking into conducting bundles. Some physical factors such as hydraulic pressure and electrical signals, with a much higher transmission velocity than chemical signalling molecules, also regufate the responses of plants to stresses. Both kinds of signals are propagated systemically through the plant body in a controlled way, in many cases by phloem or xylem. Several recent papers present the hypothesis of selective phloem loading and unloading especially of some macromolecular substances and viruses. Their transport may be surveillance also inside the sieve tubes.

Ograniczanie wyników

1 Acta Physiologiae Plantarum

1 BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

1 Biological Letters

1 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Godon K.

1 Malinowski J.

1 Miyamoto K.

1 Podstolski A.

1 Reichheld J.

1 Saniewski M.

1 Starck Z.

1 Ueda J.

1 Urbanek H.

1 2013

1 2006

1 2005

1 2002

Thiol reduction systems: linking stress signalling to plant development

Relationship between jasmonates and ethylene in regulation of some physiological processes in plants under stress conditions

Could volatile plant aromatic aldehydes be an airborne stress signal?

Role of conducting systems in the transduction of long-distance stress signals