Root-mediated signal transmission of systemic acquired resistance against above-ground and below-ground pathogens

Song, Geun Cheol; Sim, Hee‐Jung; Kim, Sang-Gyu; Ryu, Choong‐Min

doi:10.1093/aob/mcw152

Cited by 37 publications

(19 citation statements)

References 54 publications

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“…Overexpression of CaSBP08 in transgenic N. benthamiana enhanced susceptibility to P. capsici infection, as demonstrated by the higher average disease area and disease index percentage compared to WT plants ( Figures 6B, E). Besides, the NbPR1a and NbPR1b genes, which are involved in the SA-induced systemic acquired resistance pathway and JAmediated disease resistance signaling pathway, respectively, were induced in the CaSBP08 transgenic and WT plants (Sohn et al, 2007;Cheol Song et al, 2016). PR1a and PR1b, two reported defense-related genes in tobacco, can be highly induced by tobacco mosaic virus (TMV) (van Huijsduijnen et al, 1985).…”

Section: Discussionmentioning

confidence: 99%

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Identification of Pepper CaSBP08 Gene in Defense Response Against Phytophthora capsici Infection

et al. 2020

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Little information is available on the role of Squamosa promoter binding protein (SBP)-box genes in pepper plants. This family of genes is known to have transcription characteristics specific to plants and to regulate plant growth, development, stress responses, and signal transduction. To investigate their specific effects in pepper (Capsicum annuum), we screened pepper SBP-box family genes (CaSBP genes) for Phytophthora capsici (P. capsici) resistance genes using virus-induced gene silencing. CaSBP08, CaSBP11, CaSBP12, and CaSBP13, which are associated with plant defense responses against P. capsici, were obtained from among fifteen identified CaSBP genes. The function of CaSBP08 was identified in pepper defense response against P. capsici infection in particular. CaSBP08 protein was localized to the nucleus. Silencing of CaSBP08 enhanced resistance to P. capsici infection. Following P. capsici inoculation, the malondialdehyde content, peroxidase activity, and disease index percentage of the CaSBP08-silenced plants decreased compared to the control. Additionally, the expression levels of other defense-related genes, especially those of CaBPR1 and CaSAR8.2, were more strongly induced in CaSBP08-silenced plants than in the control. However, CaSBP08 overexpression in Nicotiana benthamiana enhanced susceptibility to P. capsici infection. This work provides a foundation for the further research on the role of CaSBP genes in plant defense responses against P. capsici infection.

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Section: Discussionmentioning

confidence: 99%

“…The expression level of the SA signaling marker gene NbPR1a was associated with systemic acquired resistance (SAR) against Pseudomonas syringae pv. tabaci (Cheol Song et al, 2016). PR1b is a JA-responsive gene in tobacco (Sohn et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Identification of Pepper CaSBP08 Gene in Defense Response Against Phytophthora capsici Infection

et al. 2020

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“…So far, leaf-derived VOCs in interplant communication have resulted in changes to aboveground physiology. Similarly, involvement of leaf-derived VOCs in intraplant communication has shown microbiome shifts and plant defense response (Song et al, 2016). There exists a gap in our knowledge of how VOCs may modulate interplant communication by changing belowground plasticity and root–microbe interactions.…”

Section: Discussionmentioning

confidence: 99%

“…Studies have also shown that aboveground pathogen and herbivore attack shifts microbiome activity at the belowground level (Yang et al, 2011; Song et al, 2016). We have shown previously that plants under attack by pathogenic bacteria induce a shoot-to-root systemic signal, inducing roots to recruit benign, protective microbes (Rudrappa et al, 2008; Lakshmanan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Interplant Aboveground Signaling Prompts Upregulation of Auxin Promoter and Malate Transporter as Part of Defensive Response in the Neighboring Plants

2017

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When disrupted by stimuli such as herbivory, pathogenic infection, or mechanical wounding, plants secrete signals such as root exudates and volatile organic compounds (VOCs). The emission of VOCs induces a response in the neighboring plant communities and can improve plant fitness by alerting nearby plants of an impending threat and prompting them to alter their physiology for defensive purposes. In this study, we investigated the role of plant-derived signals, released as a result of mechanical wounding, that may play a role in intraspecific communication between Arabidopsis thaliana communities. Plant-derived signals released by the wounded plant resulted in more elaborate root development in the neighboring, unwounded plants. Such plant-derived signals also upregulated the Aluminum-activated malate transporter (ALMT1) responsible for the secretion of malic acid (MA) and the DR5 promoter, an auxin responsive promoter concentrated in root apex of the neighboring plants. We speculate that plant-derived signal-induced upregulation of root-specific ALMT1 in the undamaged neighboring plants sharing the environment with stressed plants may associate more with the benign microbes belowground. We also observed increased association of beneficial bacterium Bacillus subtilis UD1022 on roots of the neighboring plants sharing environment with the damaged plants. Wounding-induced plant-derived signals therefore induce defense mechanisms in the undamaged, local plants, eliciting a two-pronged preemptive response of more rapid root growth and up-regulation of ALMT1, resulting in increased association with beneficial microbiome.

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“…Above- and below-ground herbivores can induce emission of root signals that can be perceived by other plants. As a result, stimulated systemic defense response can be induced, following increased attraction of the predatory to herbivores arthropods or parasitoids (Dicke and Dijkman, 2001 ; Guerrieri et al, 2002 ; Cheol Song et al, 2016 ). Biotic stresses are not sole inducers of interplant communication, in a similar manner, it can be induced by abiotic stresses.…”

Section: Plant Communicationmentioning

confidence: 99%

Plant Science View on Biohybrid Development

Skrzypczak

Krela

Kwiatkowski

et al. 2017

Front. Bioeng. Biotechnol.

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Biohybrid consists of a living organism or cell and at least one engineered component. Designing robot–plant biohybrids is a great challenge: it requires interdisciplinary reconsideration of capabilities intimate specific to the biology of plants. Envisioned advances should improve agricultural/horticultural/social practice and could open new directions in utilization of plants by humans. Proper biohybrid cooperation depends upon effective communication. During evolution, plants developed many ways to communicate with each other, with animals, and with microorganisms. The most notable examples are: the use of phytohormones, rapid long-distance signaling, gravity, and light perception. These processes can now be intentionally re-shaped to establish plant–robot communication. In this article, we focus on plants physiological and molecular processes that could be used in bio-hybrids. We show phototropism and biomechanics as promising ways of effective communication, resulting in an alteration in plant architecture, and discuss the specifics of plants anatomy, physiology and development with regards to the bio-hybrids. Moreover, we discuss ways how robots could influence plants growth and development and present aims, ideas, and realized projects of plant–robot biohybrids.

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Root-mediated signal transmission of systemic acquired resistance against above-ground and below-ground pathogens

Cited by 37 publications

References 54 publications

Identification of Pepper CaSBP08 Gene in Defense Response Against Phytophthora capsici Infection

Identification of Pepper CaSBP08 Gene in Defense Response Against Phytophthora capsici Infection

Interplant Aboveground Signaling Prompts Upregulation of Auxin Promoter and Malate Transporter as Part of Defensive Response in the Neighboring Plants

Plant Science View on Biohybrid Development

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