As often reminded to the readers in articles or reviews which deal with plant adaptation to their environment, higher plants are sessile organisms, a life habit which does not allow them to escape danger or to move to avoid adverse conditions. This environmental pressure has led to a myriad of adaptations, which are reflected in the vast diversity of plant habitats, morphologies, life cycles an...

In this study, the main features of trichomes, nutlet, and pollen A. orientalis, which growing in four different provinces Turkey, were examined as detail results illustrated. orientalis carries both peltate capitate well non-glandular ones. However, subtypes glandular trichomes recognized. The shape nutlets is obovate, oblong-obovate nutlet surface sculpturing alveolate. grains euprolate (P/E ...

The trichomes and chemical composition of three species the genus Salvia wild-grown (Salvia lanigera, spinosa) cultured officinalis) were studied in Anbar governate, components stem leaves by Gas chromatography–mass spectrometry(GC-MS), addition to studying epidermis (upper lower epidermis) Light microscope. Important differences appeared us study, where it was found that some compounds without...

The xeromorphic adaptation of epidermal cells of Lamiaceae plant leaves, the conse­ quence of their adaptation to an arid habitat, was investigated. These xerophytic species inhibit transpiration in different ways, depending on the number, the form and the position of trichomes, whether they are dead hairs or live glandular structures. The Salvia genus is characterized on one hand by multicellu...

Cotton fibres are unicellular seed trichomes. Our previous study suggested that the cotton R2R3 MYB transcript factor GaMYB2 is a functional homologue of the Arabidopsis trichome regulator GLABRA1 (GL1). Here, the GaMYB2 promoter activity is reported in cotton (Gossypium hirsutum), tobacco (Nicotiana tabacum), and Arabidopsis plants. A 2062 bp promoter of GaMYB2 was isolated from G. arboreum, a...

This paper presents an analysis of the morphological and anatomical characteristics aboveground parts (herba) clary sage (Salvia sclarea L.), with emphasis on investigation its surface structures. After procedure primary processing drying plant material, it was determined that composition crushed herbal drug Salviae sclareae herba showed presence leaves, bracts, flowers axis inflorescence, stem...

Trichoderma species are usually considered soil organisms that colonize plant roots, sometimes forming a symbiotic relationship. Recent studies demonstrate that Trichoderma species are also capable of colonizing the above ground tissues of Theobroma cacao (cacao) in what has been characterized as an endophytic relationship. Trichoderma species can be re-isolated from surface sterilized cacao st...

Glandular trichomes are remarkable biochemical factories that produce a wealth of secondary metabolites important for plant defenses against herbivores. However, little is known about their developmental biology. Studying the tomato hairless mutant, which develops distorted glandular trichomes and has compromised metabolic and defense capacity, Kang et al. (pages 5313–5324 in this issue) showed...

Trichogonia cinerea is endemic to Brazil and occurs in areas of cerrado and campo rupestre. In this study, we characterized the glandular and non-glandular trichomes on the aerial parts of this species, determined the principal events in the development of the former, and identified the main constituents of the volatile oil produced in its aerial organs. Fully expanded leaves, internodes, flore...

Helianthus annuus, the common sunflower, produces a complex array of secondary compounds that are secreted into glandular trichomes, specialized structures found on leaf surfaces and anther appendages of flowers. The primary components of these trichome secretions are sesquiterpene lactones (STL), a diverse class of compounds produced abundantly by the plant family Compositae and believed to co...