Essential oil of Actinidia macrosperma, a catnip response kiwi endemic to China

Zhao, Yun; Wang, Xiao yun; Wang, Zhi can; Lu, Yin; Fu, Cheng; Chen, Shao Yuan

doi:10.1631/jzus.2006.b0708

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…In animal cells, oxidized carotenoid derivatives have been reported to have a multitude of effects, including cytotoxicity (Lakshminarayana et al, 2010), induction of aptotosis (Janakiram et al, 2008;Kalariya et al, 2008;Liu et al, 2008), enzyme inactivation and inhibition of mitochondrial respiration (Siems et al, 2000(Siems et al, , 2002Hurst et al, 2005), induction of P450 cytochrome (Jeong et al, 1998), damage to DNA (Yeh and Wu, 2006;Kalariya et al, 2009) and retinoid signaling antagonism or promotion (Kuntz et al, 2006;Eroglu et al, 2012). In addition, carotenoid oxidation products, such as dihydroactinidiolide (Figure 1), are active components of pheromones in several insects (Rocca et al, 1983), and act as cat attractants in some plant species (Zhao et al, 2006). Photosynthesis can be inhibited by high concentrations of carotenoid RES in cyanobacteria (Shao et al, 2011).…”

Section: Carotenoid Oxidation Products Are Bioactivementioning

confidence: 99%

Carotenoid oxidation products as stress signals in plants

2013

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SUMMARYCarotenoids are known to play important roles in plants as antioxidants, accessory light-harvesting pigments, and attractants for pollinators and seed dispersers. A new function for carotenoids has recently emerged, which relates to the response of plants to environmental stresses. Reactive oxygen species, especially singlet oxygen, produced in the chloroplasts under stress conditions, can oxidize carotenoids leading to a variety of oxidized products, including aldehydes, ketones, endoperoxides and lactones. Some of those carotenoid derivatives, such as volatile b-cyclocitral, derived from the oxidation of b-carotene, are reactive electrophile species that are bioactive and can induce changes in gene expression leading to acclimation to stress conditions. This review summarizes the current knowledge on the non-enzymatic oxidation of carotenoids, the bioactivity of the resulting cleavage compounds and their functions as stress signals in plants.

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Section: Carotenoid Oxidation Products Are Bioactivementioning

confidence: 99%

Carotenoid oxidation products as stress signals in plants

2013

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“…[5][6][7][8] Some of them act as pheromones and catnip response factors and are also known as ginseng of the cat. 9 The essential oil composition and antimicrobial activity of various Nepeta species were previously reported. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] In earlier communications, some Himalayan Nepeta species were screened for their terpenoid constituents.…”

Section: Introductionmentioning

confidence: 99%

Constituents and antimicrobial activity of the essential oils of six Himalayan Nepeta species

Bisht¹,

Padalia²,

Singh³

et al. 2010

J Serb Chem Soc

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The essential oils from six Himalayan Nepeta species, viz. Nepeta leucophylla Benth., Nepeta discolor Royle ex Benth., Nepeta govaniana Benth., Nepeta clarkei Hook. f., Nepeta elliptica Royle ex Benth. and Nepeta erecta Benth., were tested for their in vitro antimicrobial activity against six pathogenic bacterial and two fungal strains. The results showed that Pseudomonas aeruginosa was the most sensitive strain tested to the essential oils of Nepeta species. The essential oils of N. elliptica and N. erecta exhibited the highest activity against P. aeruginosa, followed by the essential oils of N. leucophylla and N. clarkei. The essential oils from N. elliptica and N. erecta were also found to be very effective against Serratia marcescens; while the essential oil from N. leucophylla displayed significant activity against Proteus vulgaris and Staphylococcus aureus. Other bacterial strains displayed variable degree of susceptibility against one or more of the tested essential oils. The essential oil from N. leucophylla also showed the highest antifungal activity against both tested fungal strains, viz. Candida albicans and Trichophyton rubrum, followed by the essential oils from N. clarkei, N. govaniana and N. erecta. Iridodial derivatives, viz. iridodial β-monoenol acetate (25.4 %), dihydroiridodial diacetate (18.2 %) and iridodial dienol diacetate (7.8 %) were identified as the major constituents of N. leucophylla, while the essential oils from N. elliptica and N. erecta were dominated by (7R)-trans,trans nepetalactone (83.4 %) and isoiridomyrmecin (66.7 %), respectively. The essential oil of N. discolor was characterized by 1,8-cineole (25.5 %) and β-caryophyllene (18.6 %), while N. clarkei was dominated by β-sesquiphellandrene (22.0 %) and germacrene D (13.0 %). Isoiridomyrmecin (35.2 %) and pregeijerene (20.7 %) were identified as the major constituents of N. govaniana. In general the Nepeta species containing constituents with an iridoid or lactone skeleton were found to have the 740 BISHT et al. greater antagonistic activity against most of the microbial strains as compared to those containing regular terpene constituents.

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“…The response to catnip and similar plants will vary due to genetic differences. 35,36 Cat cages in the veterinary practice If possible, provide cat-only rooms. The optimal cat cage has the following attributes: ✜ Is large enough to accommodate the client's carrier, and for the litter box to be away from food, bedding and water.…”

Section: Preparing the Practice Environmentmentioning

confidence: 99%

AAFP and ISFM Feline-Friendly Handling Guidelines

Rodan¹,

Sundahl²,

Carney³

et al. 2011

Journal of Feline Medicine and Surgery

216

186

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Background The number of pet cats is increasing in most countries, often outnumbering pet dogs, yet cats receive less veterinary care than their canine counterparts.1 Clients state the difficulty of getting the cat into a carrier at home, driving to the clinic, and dealing with the fearful cat at the veterinary clinic as reasons for fewer visits.2 Educating and preparing the client and the veterinary team with regard to respectful feline handling is necessary in order to avoid stress and accomplish the goal of good health care. Without such preparation, feline stress may escalate into fear or fear-associated aggression. The resulting stress may alter results of the physical examination and laboratory tests, leading to incorrect diagnoses (eg, diabetes mellitus) and unnecessary treatments.

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Essential oil of Actinidia macrosperma, a catnip response kiwi endemic to China

Abstract: Dihydronepetalactone, iridomyrmecin, and dihydroactinidiolide are responsible for the catnip response of A. macrosperma.

Cited by 13 publications

References 4 publications

Carotenoid oxidation products as stress signals in plants

Carotenoid oxidation products as stress signals in plants

Constituents and antimicrobial activity of the essential oils of six Himalayan Nepeta species

AAFP and ISFM Feline-Friendly Handling Guidelines

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