Induction of priming by salt stress in neighboring plants

Caparrotta, Stefania; Boni, Sara; Taiti, Cosimo; Palm, Emily; Mancuso, Stefano; Pandolfi, Camilla

doi:10.1016/j.envexpbot.2017.12.017

Cited by 36 publications

(39 citation statements)

References 72 publications

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“…77 Relative growth rate, stomatal conductance, and photosynthetic rate were significantly higher in exposed plants, making them better prepared for upcoming salt stress. 78…”

Section: Stress-induced Plant Volatilesmentioning

confidence: 99%

Who is my neighbor? Volatile cues in plant interactions

Ninkovic

Rensing

Dahlin

et al. 2019

Plant Signaling & Behavior

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One of the most important challenges for individual plants is coexistence with their neighbors. To compensate for their sessile lifestyle, plants developed complex and sophisticated chemical systems of communication among each other. Site-specific biotic and abiotic factors constantly alter the physiological activity of plants, which causes them to release various secondary metabolites in their environments. Volatile organic compounds (VOCs) are the most common cues that reflect a plant's current physiological status. In this sense, the identity of its immediate neighbors may have the greatest impact for a plant, as they share the same available resources. Plants constantly monitor and respond to these cues with great sensitivity and discrimination, resulting in specific changes in their growth pattern and adjusting their physiology, morphology, and phenotype accordingly. Those typical competition responses in receivers may increase their fitness as they can be elicited even before the competition takes place. Plant-plant interactions are dynamic and complex as they can include many different and important surrounding cues. A major challenge for all individual plants is detecting and actively responding only to "true" cues that point to real upcoming threat. Such selective responses to highly specific cues embedded in volatile bouquets are of great ecological importance in understanding plant-plant interactions. We have reviewed recent research on the role of VOCs in complex plant-plant interactions in plant-cross kingdom and highlighted their influence on organisms at higher trophic levels.

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“…77 Relative growth rate, stomatal conductance, and photosynthetic rate were significantly higher in exposed plants, making them better prepared for upcoming salt stress. 78…”

Section: Stress-induced Plant Volatilesmentioning

confidence: 99%

Who is my neighbor? Volatile cues in plant interactions

Ninkovic

Rensing

Dahlin

et al. 2019

Plant Signaling & Behavior

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“…As a caveat, volatile identity, concentration, and duration may affect the reliability of a cue and therefore the costs associated with eavesdropping. Plants experiencing insect herbivory frequently generate species-specific blends of volatile compounds (Ameye et al , 2017; Holopainen and Gershenzon, 2010), which can influence fitness in neighboring plants (Caparrotta et al , 2018; Karban, 2017; Kessler et al , 2006). Plant-derived compounds associated with herbivory include GLVs (Farag et al , 2005; Frost et al , 2008c; Lu et al , 2017), phenylpropanoid derivatives (Erb et al , 2015), and terpenes (Arimura et al , 2012).…”

Section: Discussionmentioning

confidence: 99%

Dispensing a synthetic green leaf volatile to two plant species in a common garden differentially alters physiological responses and herbivory

Freundlich¹,

Shields²,

Frost³

2018

Preprint

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Highlight: Long-term exposure to a ubiquitous herbivore-associated volatile cue results in 30 species-specific fitness effects. Differential cue-mediated growth/defense tradeoffs have 31 important implications for plant-herbivore interactions. 32 33 34 35 36 2 Abstract 37 Herbivore-induced plant volatile (HIPV)-mediated eavesdropping is a well-documented, 38 inducible phenomenon that should-like any inducible phenomenon-incur fitness costs. Yet, 39 ecological costs associated with volatile exposure alone are unclear. In a common garden 40 experiment, we tested the hypothesis that exposure to a single HIPV would decrease herbivore 41 damage at the cost of reduced plant growth and reproduction. Lima bean (Phaseolus lunatus) and 42 pepper (Capsicum annuum) plants were exposed to a persistent, low-dose (~10ng/hour) of the 43 green leaf volatile cis-3-hexenyl acetate (z3HAC), a ubiquitous HIPV. z3HAC-treated pepper 44 plants were shorter, had less aboveground and belowground biomass, and produced fewer 45 flowers and fruits relative to controls while z3HAC-treated lima bean plants were taller and 46produced more leaves and flowers than did controls. Natural herbivory was reduced in z3HAC-47 exposed lima bean plants, but not in pepper. Cyanogenic potential, a putative defense 48 mechanism in lima bean, was lower in z3HAC-exposed leaves, suggesting a growth-defense 49 tradeoffs from z3HAC exposure alone. Plant species-specific responses to an identical priming 50 cue have important implications for ecological costs and benefits of volatile-mediated inter-plant 51 communication under field conditions. 52 53 Key Words -cis-3-hexenyl acetate, eavesdropping, lima bean, pepper, plant fitness, plant 54 volatiles 55 56 Abbreviations used-cis-3-hexenyl acetate (z3HAC), Herbivore-induced plant volatile (HIPV), 57 Green-leaf volatile (GLV) 58 59 60 Production and utilization of airborne chemical cues is prevalent within the plant 61 kingdom. Plants depend on airborne chemical signaling for pollination (Muhlemann et al., 62 2014), indirect defense (Mumm and Dicke, 2010), protection from pathogens (Farag et al., 632013), and herbivore resistance (Frost et al., 2008c). Volatile communication is also pivotal for 64 plant-plant signaling, and selection for such signaling depends on honest cues that reliably confer 65 ecologically relevant information. For example, herbivory is a fundamental ecological 66 interaction that impacts plant fitness, and many plants increase the production and emission of 67 volatile compounds in response to herbivore damage (Turlings et al., 1995). Such herbivore-68 induced plant volatiles (HIPVs) are potentially reliable cues around which plant-plant 69 eavesdropping could be evolutionarily adaptive(Rodriguez-Saona and Frost, 2010). Undamaged70

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“…Under salinity stress, another common problem caused by global change, [26] found that Arabidopsis receivers resulted more tolerant than emitters, as showed by higher seed germination and increased plant growth [26], suggesting that salt-promoted changes in VOCs are relevant in priming salt tolerance in neighboring [unstressed) plants. [23] observed that the receiver plants of Vicia faba maintained a higher photosynthetic rate, photosystem II efficiency, and relative growth rate than emitters when subjected to the same level of NaCl, highlighting that leaf volatiles can act as airborne signals in salt stress communication.…”

Section: Airborne Plant-plant Communication Triggered By Abiotic Factorsmentioning

confidence: 93%

“…In contrast, there is only a little information available on airborne-mediated inter-plant communication triggered by abiotic factors, and only a few investigations have been conducted [22][23][24][25][26], which contrast sharply with the necessity to understand how plants are able to build awareness of abiotic hazards, especially in the era of global change [17]. Plants are almost continuously exposed to a large variety of abiotic stress factors including the diurnal variation of temperature, irradiance, UV, drought events, flooding (caused by heavy rain), salinity, and metal toxicity, and exponential increases in their frequency and amplitude have been observed in some areas due to global change.…”

Section: Airborne Plant-plant Communication Triggered By Abiotic Factorsmentioning

confidence: 99%

Airborne signals and abiotic factors: the neglected side of the plant communication

Landi

2020

Communicative & Integrative Biology

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A relevant number of reports have examined the role of airborne signals in plant-plant communication, indicating that volatile organic compounds (VOCs) can prime neighboring plants against pathogen and/or herbivore attacks. Conversely, there is very limited information available on the possibility of the emission of VOCs by emitter plants under abiotic stress conditions, which may alert neighboring unstressed plants and prime these individuals (receivers) against the same stressors. The present opinion paper briefly reviews a few reports examining the effect of infochemicals produced by emitters on receiver plants subjected to abiotic stresses typical of global climate change. The ecological implications of these dynamics, as well as some concerns related to the potential roles of inter-plant communication in environmentally controlled experiments, have arisen. Some possible inter-plant communications applications (biomonitoring and biostimulation), mediated by airborne signals, and some directions for future studies on this topic, are also provided.

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Induction of priming by salt stress in neighboring plants

Cited by 36 publications

References 72 publications

Who is my neighbor? Volatile cues in plant interactions

Who is my neighbor? Volatile cues in plant interactions

Dispensing a synthetic green leaf volatile to two plant species in a common garden differentially alters physiological responses and herbivory

Airborne signals and abiotic factors: the neglected side of the plant communication

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