Dissecting the pine tree green chemical factory

Bouwmeester, Harro J.

doi:10.1093/jxb/ery407

Cited by 6 publications

(3 citation statements)

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“…We observed specific expression of the TcEbFS gene promoter and slightly higher EBF accumulation in the ray florets, which contrasts with the high expression and accumulation in disc florets of pyrethrum (Figures 1, 4D) (Li et al, 2021). This finding likely constrains the EBF accumulation and emphasizes the significance of the spatial distribution, translocation, and storage of specific volatiles in different organs and tissues, which are crucial for their release from floral organs at specific stages of flower development, from specific cells, and at specific times of the day (Tissier et al, 2017;Turner et al, 2018;Bouwmeester, 2019). Therefore, in future studies, it is important to consider the dedicated organs or tissues where many of these metabolites are synthesized and accumulated, such as specialized structures located on the surface (glandular trichomes) or internally (secretory ducts/cavities) in the flower, as well as the ratio of ray and disc florets when genetically engineering specialized metabolites in other related chrysanthemum species.…”

Section: Discussionmentioning

confidence: 88%

“…More recently, researchers have increasingly emphasized the specific localization and regulation of terpene release in plants. Typically, plants restrict the formation and storage of defensive terpenes to specialized structures, such as epidermal glandular trichomes or internal secretory cavities/ducts, to prevent toxicity and fulfill specific ecological functions ( Bouwmeester, 2019 ; Li et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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Aphid alarm pheromone mimicry in transgenic Chrysanthemum morifolium: insights into the potential of (E)-β-farnesene for aphid resistance

Li,

Hu,

Ren

et al. 2024

Front. Plant Sci.

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(E)-β-Farnesene (EBF) serves as the primary component of the alarm pheromone used by most aphid pest species. Pyrethrum (Tanacetum cinerariifolium) exhibits tissue-specific regulation of EBF accumulation and release, effectively mimicking the aphid alarm signal, deterring aphid attacks while attracting aphid predators. However, cultivated chrysanthemum (Chrysanthemum morifolium), a popular and economically significant flower, is highly vulnerable to aphid infestations. In this study, we investigated the high expression of the pyrethrum EBF synthase (TcEbFS) gene promoter in the flower head and stem, particularly in the parenchyma cells. Subsequently, we introduced the TcEbFS gene, under the control of its native promoter, into cultivated chrysanthemum. This genetic modification led to increased EBF accumulation in the flower stem and young flower bud, which are the most susceptible tissues to aphid attacks. Analysis revealed that aphids feeding on transgenic chrysanthemum exhibited prolonged probing times and extended salivation durations during the phloem phase, indicating that EBF in the cortex cells hindered their host-location behavior. Interestingly, the heightened emission of EBF was only observed in transgenic chrysanthemum flowers after mechanical damage. Furthermore, we explored the potential of this transgenic chrysanthemum for aphid resistance by comparing the spatial distribution and storage of terpene volatiles in different organs and tissues of pyrethrum and chrysanthemum. This study provides valuable insights into future trials aiming for a more accurate replication of alarm pheromone release in plants. It highlights the complexities of utilizing EBF for aphid resistance in cultivated chrysanthemum and calls for further investigations to enhance our understanding of this defense mechanism.

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Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Aphid alarm pheromone mimicry in transgenic Chrysanthemum morifolium: insights into the potential of (E)-β-farnesene for aphid resistance

Li,

Hu,

Ren

et al. 2024

Front. Plant Sci.

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“…To produce a variety of products, pine trees are planted all over the world. For building materials, there are wood and cellulose [ 93 ]. Pine produces phenolic chemicals and oleoresin, the latter of which contains a variety of terpenoids.…”

Section: Plant Species and Their Potential Therapeutic Interestsmentioning

confidence: 99%

The Therapeutic Wound Healing Bioactivities of Various Medicinal Plants

Albahri¹,

Badran

Hijazi³

et al. 2023

Life

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The skin serves as the body’s first line of defense, guarding against mechanical, chemical, and thermal damage to the interior organs. It includes a highly developed immune response that serves as a barrier against pathogenic infections. Wound healing is a dynamic process underpinned by numerous cellular activities, including homeostasis, inflammation, proliferation, and remodeling, that require proper harmonious integration to effectively repair the damaged tissue. Following cutaneous damage, microorganisms can quickly enter the tissues beneath the skin, which can result in chronic wounds and fatal infections. Natural phytomedicines that possess considerable pharmacological properties have been widely and effectively employed forwound treatment and infection prevention. Since ancient times, phytotherapy has been able to efficiently treat cutaneous wounds, reduce the onset of infections, and minimize the usage of antibiotics that cause critical antibiotic resistance. There are a remarkable number of wound-healing botanicals that have been widely used in the Northern Hemisphere, including Achiella millefolium, Aloe vera, Althaea officinalis, Calendula officinalis, Matricaria chamomilla, Curcuma longa, Eucalyptus, Jojoba, plantain, pine, green tea, pomegranate, and Inula. This review addresses the most often used medicinal plants from the Northern Hemisphere that facilitate the treatment of wounds, and also suggests viable natural alternatives that can be used in the field of wound care.

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Monitoring Ethylene in Plants: Genetically Encoded Reporters and Biosensors

Fernandez‐Moreno

Stepanova

2019

Small Methods

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Phytohormone ethylene regulates numerous aspects of plant physiology, from fruit ripening to pathogen responses. The molecular basis of ethylene biosynthesis and action has been investigated for over 40 years, and a combination of biochemistry, genetics, cell, and molecular biology have proven successful at uncovering the core machinery of the ethylene pathway. A number of molecular tools have been developed over the years that enable visualization of the sites of ethylene production and response in the plant. Genetically encoded biosensors take advantage of reporter proteins, i.e., fluorescent, luminescent, or colorimetric markers, to highlight the tissues that make, perceive, or respond to the This article is protected by copyright. All rights reserved. 2 hormone. This review describes the different types of biosensors currently available to the ethylene community and discusses potential new strategies for developing the next generation of genetically encoded ethylene reporters.

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Dissecting the pine tree green chemical factory

Abstract: This article comments on: Turner GW, Parrish AN, Zager JJ, Fischedick JT, Lange BM. 2018. Assessment of flux through oleoresin biosynthesis in epithelial cells of loblolly pine resin ducts. .

Cited by 6 publications

References 11 publications

Aphid alarm pheromone mimicry in transgenic Chrysanthemum morifolium: insights into the potential of (E)-β-farnesene for aphid resistance

Aphid alarm pheromone mimicry in transgenic Chrysanthemum morifolium: insights into the potential of (E)-β-farnesene for aphid resistance

The Therapeutic Wound Healing Bioactivities of Various Medicinal Plants

Monitoring Ethylene in Plants: Genetically Encoded Reporters and Biosensors

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