Sujiol, a new potent insect growth regulator from <i>Juniperus communis</i> L. against last instar larvae of <i>Spodoptera litura</i>

Vardhini, D.; Raja, S.; Varalakshmi, K.; Quddus, K. M. A.

doi:10.1046/j.1439-0418.2001.00556.x

Cited by 3 publications

(2 citation statements)

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“…suis (Mägi et al . 2006), interfering with the development of the tobacco caterpillar Spodoptera litura (Vardhini et al . 2001) and as antifungal and antibacterial agents (Filipowicz et al .…”

Section: Structure and Physiologymentioning

confidence: 99%

“…Oils from juniper have proved useful for controlling pig sarcoptic mange mites Sarcoptes scabiei var. suis (Mägi et al 2006), interfering with the development of the tobacco caterpillar Spodoptera litura (Vardhini et al 2001) and as antifungal and antibacterial agents (Filipowicz et al 2003;Jimenez-Arellanes et al 2003) although not reliably against bacteria such as Staphylococcus aureus, Escherichia coli or Pseudomonas aeruginosa nor the yeast Candida albicans (Angioni et al 2003).…”

Section: (Iv) Nutritionmentioning

confidence: 99%

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Biological Flora of the British Isles: Juniperus communis L.

2007

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Summary1. This account reviews information on all aspects of the biology of Juniperus communis that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles : distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history and conservation. 2. Juniperus communis (juniper) is an evergreen dioecious gymnosperm shrub with two main population centres in Britain, one on chalk downlands of southern England and the other in northern England and Scotland. British populations are divided into two main subspecies although there is overlap in genetic and morphological features. Subspecies communis varies from a spreading shrub to an erect tree characteristic of calcareous soils in southern England, various soils in the Scottish highlands, while ssp. nana is a small procumbent shrub, restricted to well-drained bogs and, more usually, rocky outcrops, generally as a minor component of upland heaths and montane scrub. Both subspecies are drought and frost tolerant, although sensitive to fire. A third subspecies, hemisphaerica , primarily found in mountains of southern Europe has two small populations on maritime cliffs in the UK. 3. Although not very palatable, J. communis is grazed by small and large mammals when food is short, particularly in winter. Its low palatability is derived from oils found in the needles, cones and wood, dominated by monoterpenes. These have been extensively used in folklore medicine and to flavour alcoholic drinks, and are being investigated for new medicinal uses. 4. Juniperus communis ssp. communis is a characteristic light-demanding invader of pasture but has declined due to agricultural expansion, erosion, overgrazing, fire and poor regeneration, such that it is now rare and threatened across lowland/southern Europe. Although susceptible to overgrazing, some grazing can be beneficial to create the open sward necessary for seedling establishment. Other limits to regeneration are: progressively ageing stands in which male plants predominate; increasing fragmentation of stands that reduces pollination efficacy; and high seed dormancy with consequent variable germinability.Key-words : climatic limitation, communities, conservation, ecophysiology, geographical and altitudinal distribution, germination, herbivory, mycorrhiza, parasites and diseases, reproductive biology, soilsJournal of Ecology (2007) 95 , 1404-1440 doi: 10.1111/j.1365-2745.2007.01308.x *Abbreviated references are used for many standard works: see Journal of Ecology (1975), 63 , 335 -344. Nomenclature of vascular plants follows Flora Europaea and, where different, Stace (1997). †Author to whom correspondence should be addressed: P. A. Thomas. E-mail: p.a.thomas@biol.keele.ac.uk. Pinopsida (Coniferae), Cupressaceae. The junipers are a taxonomically difficult group, composed of about 68-80 s...

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Section: Structure and Physiologymentioning

confidence: 99%