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Volatile communication in plants relies on a KAI2-mediated signaling pathway

ABSTRACT: Volatile communication in plants relies on a KAI2-mediated signaling pathway

PROVIDER: PRJNA1026911 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26351800_1.fastq.gz	Fastqsanger.gz
	SRR26351800_2.fastq.gz	Fastqsanger.gz
	SRR26351801_1.fastq.gz	Fastqsanger.gz
	SRR26351801_2.fastq.gz	Fastqsanger.gz
	SRR26351802_1.fastq.gz	Fastqsanger.gz

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Volatile communication in plants relies on a KAI2-mediated signaling pathway

Project description:Plants are targets of volatile organic compounds (VOCs) released as a part of plant-plant communication, within-plant self-signaling and plant-microbe interactions. Therefore, understanding VOC perception and downstream signaling is vital for unraveling the mechanisms behind information exchange in plants, which remain largely unexplored. Using the hormone-like function of volatile terpenoids in reproductive organ development as a system with a visual marker for communication, we demonstrated that among the four petunia karrikin-insensitive receptors, PhKAI2ia stereo-specifically perceives the (-)-germacrene D signal, triggering a karrikin-like signaling cascade. This study provides new insights into plant olfaction, uncovers the role(s) of the unique intermediate clade of KAI2 receptors, illuminates the involvement of KAI2ia-dependent signaling pathway in volatile communication and gives insight into the long-standing question about the nature of potential endogenous karrikin-like ligand(s).

2024-02-07 | GSE245080 | GEO

Volatile communication in plants relies on a KAI2-mediated signaling pathway

Project description:Detection of PhKAI2 and Germacrene interaction using LiP-MS

2024-01-06 | PXD048284 | JPOST Repository

Volatile communication in plants relies on a KAI2-mediated signaling pathway

Project description:Detection of PhKAI2 and Germacrene interaction using LiP-MS

2024-01-26 | PXD048893 | JPOST Repository

Microarray analysis of leaves of Arabidopsis thaliana Col-0 plants exposed to volatile pinenes (treatment) or hexane (control)

Project description:Volatile organic compounds (VOCs) may play a role in systemic acquired resistance (SAR), a salicylic acid (SA)-associated, broad-spectrum immune response in systemic, healthy tissues of locally infected plants. Four-to-five-week-old plants were exposed for three days to a mixture of volatile pinenes to investigate genome-wide transcriptional responses relative to hexane-treated control plants.

2017-06-01 | E-MTAB-5475 | biostudies-arrayexpress

Immature leaves are the dominant volatile sensing organs of maize

Project description:Plants perceive herbivory induced volatiles and respond to them by upregulating their defenses. So far, the organs responsible for volatile perception remain poorly described. Here, we show that responsiveness to the herbivory induced green leaf volatile (Z)-3-hexenyl acetate (HAC) in terms of volatile emission, transcriptional regulation and jasmonate defense hormone activation is largely constrained to younger maize leaves. Older leaves are much less sensitive to HAC. In a given leaf, responsiveness to HAC is high at immature developmental stages and drops off rapidly during maturation. Responsiveness to the non-volatile elicitor ZmPep3 shows an opposite pattern, demonstrating that this form of hyposmia (i.e. decreased sense of smell) is not due to a general defect in jasmonate defense signaling in mature leaves. Neither stomatal conductance nor leaf cuticle composition explain the unresponsiveness of older leaves to HAC, suggesting perception mechanisms upstream of jasmonate signaling as driving factors. Finally, we show that hyposmia in older leaves is not restricted to HAC, and extends to the full blend of herbivory induced volatiles. In conclusion, our work identifies immature maize leaves as dominant stress volatile sensing organs. The tight spatiotemporal control of volatile perception may facilitate within-plant defense signaling to protect young leaves, and may allow plants with complex architectures to explore the dynamic odor landscapes at the outer periphery of their shoots

2023-07-10 | GSE236332 | GEO

Scentmarking communication in the female rat_C4PR_LIV

Project description:Chemical communication in mammals is in part mediated through the deposition of scent marks in the environment. Volatile and non-volatile moleculesin the scent marksconvey important information about the donor animal, such as sex, social and reproductive status,and stimulatea response in the receptor animal. In rodents, most of the work about deciphering the molecular composition of scent markshas been focused on mice. In rats, by contrast, knowledge is limitedand the molecular complexity of scent marks is not as well described as in mice. In particular, the sources and roles of proteins in scent marks are largely undefined, with even less knowledge when we consider female rats. We therefore conducted a global proteomic analysis of scent marks from femalerats (Rattus norvegicus)to define the protein composition and then we investigated the role of scent marks in sexual communication. Our study revealed that protein pattern inscent marks greatly differsfrom that in naturally voided urine, indicatinga different tissue of41origin. In particular, female scent marks are dominated by lipocalins, notablymajor urinary proteins, whereas urinary output of these proteins is almost imperceptible.Further analysis revealed that the most plausible source of the components in scent marks are the clitoral glands,implying a critical role of theseaccessory glands in sexual communication in the rat.

2023-05-29 | PXD039325 | Pride

Volatile metabolome and floral transcriptome analyses reveal the volatile components of strongly fragrant progeny of Malus robusta Rehder

Project description:To study the floral volatile compounds of standard Malus robusta flowers (Mr), and its progeny with strongly and weakly fragrant flowers

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Comparative expression analysis of the Arabidopsis karrikin (KAR)-receptor mutant, kai2-2, and wild type (WT) plants (Col-0) under dehydration conditions

Project description:To understand the role of KAR-signaling components in water stress response, we have carried out comparative expression analysis of the KAR-receptor kai2-2 mutant and WT plants under dehydration and well-watered (control) conditions. Aligent’s whole Arabidopsis Gene Expression Microarray (G2519F-021169, V4, 4x44K) was used.

2017-10-15 | GSE90622 | GEO

Volatile compounds emitted by Plant Growth Promoting Fungi Tolypocladium inflatum GT22 alleviates copper and pathogen stress

Project description:The intricate interactions between plants and microorganisms have garnered substantial scientific interest. While previous studies have highlighted the potential influence of various fungal volatile compounds(VCs) on plant growth and development, the precise mechanisms underlying this modulation still need to be discovered. In this study, we discovered that fungal volatile organic compounds from the soil-borne fungus Tolypocladium inflatum GT22 enhance the growth of Arabidopsis. Remarkably, following the priming of Arabidopsis with GT22 VC, it displayed an enhanced immune response, thereby mitigating the detrimental effects caused by both pathogenic infections and copper stress. Transcriptomic analyses of Arabidopsis seedlings treated with GT22 VCs revealed the differential expression of 90, 83, and 137 genes after 3, 24, and 48 hours of volatile exposure, respectively. These responsive genes are involved in growth, hormone regulation, defense mechanisms, and signaling pathways. Notably, the induction of genes related to innate immunity, hypoxia, salicylic acid (SA) biosynthesis and camalexin biosynthesis by GT22 VCs were reported. Among the VCs emitted by GT22, limonene is particularly noteworthy. Arabidopsis seedlings exposed to limonene exhibited not only growth promotion effects but also alleviation of copper stress, indicating that limonene may play a role in the interaction between GT22 and plants. Overall, the findings of this study provide evidence supporting that fungal VCs can promote plant growth and enhance both biotic and abiotic tolerance. Furthermore, our results suggest that seedlings exposed to T. inflatum GT22 VCs holds promising potential for harnessing beneficial effects to improve crop productivity.

2024-02-29 | GSE239841 | GEO

Volatile Markers in Digestive Cancer

Project description:The study is aimed to determine the potential of volatile marker testing for identification of gastrointestinal cancers (in particular - colorectal and gastric cancers), the related precancerous lesions in the stomach and colon. The study will be addressing the role of confounding factors, including lifestyle factors, diet, smoking as well as addressing the potential role of microbiota in the composition of exhaled volatile markers.

| 2181444 | ecrin-mdr-crc

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