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      The role of volatiles in plant communication

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          Summary

          Volatiles mediate the interaction of plants with pollinators, herbivores and their natural enemies, other plants and micro‐organisms. With increasing knowledge about these interactions the underlying mechanisms turn out to be increasingly complex. The mechanisms of biosynthesis and perception of volatiles are slowly being uncovered. The increasing scientific knowledge can be used to design and apply volatile‐based agricultural strategies.

          Significance Statement

          Volatiles mediate the interaction of plants with pollinators, micro‐organisms, other plants and herbivores and their natural enemies. The increasing knowledge about the role of volatiles in these interactions, the underlying mechanisms, the biosynthesis and perception of volatiles are reviewed and the perspective for volatile‐based agricultural control strategies discussed.

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          Most cited references130

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          Specific effects of microRNAs on the plant transcriptome.

          Most plant microRNAs (miRNAs) have perfect or near-perfect complementarity with their targets. This is consistent with their primary mode of action being cleavage of target mRNAs, similar to that induced by perfectly complementary small interfering RNAs (siRNAs). However, there are natural targets with up to five mismatches. Furthermore, artificial siRNAs can have substantial effects on so-called off-targets, to which they have only limited complementarity. By analyzing the transcriptome of plants overexpressing different miRNAs, we have deduced a set of empirical parameters for target recognition. Compared to artificial siRNAs, authentic plant miRNAs appear to have much higher specificity, which may reflect their coevolution with the remainder of the transcriptome. We also demonstrate that miR172, previously thought to act primarily by translational repression, can efficiently guide mRNA cleavage, although the effects on steady-state levels of target transcripts are obscured by strong feedback regulation. This finding unifies the view of plant miRNA action.
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            NINJA connects the co-repressor TOPLESS to jasmonate signalling

            Jasmonoyl-isoleucine (JA-Ile) is a plant hormone that regulates a broad array of plant defence and developmental processes1–5. JA-Ile-responsive gene expression is regulated by the transcriptional activator MYC2 that interacts physically with the jasmonate ZIM-domain (JAZ) repressor proteins. Upon JA-Ile perception, JAZ proteins are degraded and JA-Ile-dependent gene expression is activated6,7. The molecular mechanisms by which JAZ proteins repress gene expression remain unknown. Here we show that the JAZ proteins recruit the Groucho/Tup1-type co-repressor TOPLESS (TPL)8 and TPL-related proteins (TPRs) through a previously uncharacterized adaptor protein, designated Novel INteractor of JAZ (NINJA). NINJA acts as a transcriptional repressor of which the activity is mediated by a functional TPL-binding EAR repression motif. Accordingly, both NINJA and TPL proteins function as negative regulators of jasmonate responses. Our results point to TPL proteins as general co-repressors that affect multiple signalling pathways through the interaction with specific adaptor proteins. This new insight reveals how stress- and growth-related signalling cascades use common molecular mechanisms to regulate gene expression in plants.
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              Multiple stress factors and the emission of plant VOCs.

              Individual biotic and abiotic stresses, such as high temperature, high light and herbivore attack, are well known to increase the emission of volatile organic compounds from plants. Much less is known about the effect of multiple, co-occurring stress factors, despite the fact that multiple stresses are probably the rule under natural conditions. Here, after briefly summarizing the basic effects of single stress factors on the volatile emission of plants, we survey the influence of multiple stresses. When two or more stresses co-occur their effects are sometimes additive, while in other cases the influence of one stress has priority. Further investigations on the effects of multiple stress factors will improve our understanding of the patterns and functions of plant volatile emission. Copyright 2010 Elsevier Ltd. All rights reserved.
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                Author and article information

                Contributors
                h.j.bouwmeester@uva.nl
                Journal
                Plant J
                Plant J
                10.1111/(ISSN)1365-313X
                TPJ
                The Plant Journal
                John Wiley and Sons Inc. (Hoboken )
                0960-7412
                1365-313X
                19 September 2019
                December 2019
                : 100
                : 5 ( doiID: 10.1111/tpj.v100.5 )
                : 892-907
                Affiliations
                [ 1 ] University of Amsterdam Swammerdam Institute for Life Sciences Green Life Science research cluster Science Park 904 1098 XH Amsterdam The Netherlands
                [ 2 ] Department of Systematic and Evolutionary Botany University of Zürich Zollikerstrasse 107 CH‐8008 Zürich Switzerland
                Author notes
                [*] [* ]For correspondence (e‐mail h.j.bouwmeester@ 123456uva.nl ).
                Author information
                https://orcid.org/0000-0003-0907-2732
                Article
                TPJ14496
                10.1111/tpj.14496
                6899487
                31410886
                212874df-8057-4b67-8910-6c5aff7c44f4
                © 2019 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd.

                This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

                History
                : 03 March 2019
                : 31 May 2019
                : 17 June 2019
                Page count
                Figures: 2, Tables: 0, Pages: 16, Words: 14112
                Funding
                Funded by: European Research Council , open-funder-registry 10.13039/100010663;
                Award ID: 670211
                Categories
                Focused Review
                Focused Review
                Custom metadata
                2.0
                December 2019
                Converter:WILEY_ML3GV2_TO_JATSPMC version:5.7.2 mode:remove_FC converted:05.12.2019

                Plant science & Botany
                terpenoids,phenylpropanoids,volatiles,plant−insect/microbe/plant interactions,pollination,biosynthesis,regulation,agriculture

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