the influence of leaf pubescence of three wheat cultivars (pishtaz, ghuds and falat) on preference and biological parameters of sipha maydis (passerini) was investigated under greenhouse conditions (25 ± 2 °c, 70 ± 10% rh and 14: 10 h (l: d) photoperiod). the results showed that pishtaz had a greater density of trichomes compared to the other cultivars. in the preference test with whole plant, ...

Plant hormones can adjust the physiology and development of plants to enhance their adaptation biotic abiotic challenges. Jasmonic acid (JA), one immunity in plants, triggers genome-wide transcriptional changes response insect attack wounding. Although JA is known affect trichomes, epidermal appendages that form a protective barrier against various stresses, it remains unclear how interacts wit...

Cells in the Drosophila wing are polarised to produce a single distally pointing trichome. Recent studies show that this requires the recruitment of the Dishevelled protein to the distal cell edge, and the correct levels of Rho-associated kinase activity.

Tribe Stachydeae with 12 genera were divided into two major clades: Melitis and Eurystachys clades consisting of all attributed to except Melittis. Recently, a broadly defined clade falling well-supported have been formally named in phylogenetic nomenclature. In the present study, trichomes 70 spp. from nine pollens 53 six investigated using scanning electron microscopy (SEM) order draw taxonom...

Acyl sugars containing branched-chain fatty acids (BCFAs) are exuded by glandular trichomes of many species in Solanaceae, having an important defensive role against insects. From isotope-feeding studies, two modes of BCFA elongation have been proposed: (1) fatty acid synthase-mediated two-carbon elongation in the high acyl sugar-producing tomato species Solanum pennellii and Datura metel; and ...

We recently reported that three genes involved in the biosynthesis of monoterpenes in trichomes, a cis-prenyltransferase named neryl diphosphate synthase 1 (NDPS1) and two terpene synthases (TPS19 and TPS20), are present in close proximity to each other at the tip of chromosome 8 in the genome of the cultivated tomato (Solanum lycopersicum). This terpene gene "cluster" also contains a second ci...

Endoreplication, also called endoreduplication, is a modified cell cycle in which DNA is repeatedly replicated without subsequent cell division. Endoreplication is often associated with increased cell size and specialized cell shapes, but the mechanism coordinating DNA content with shape and size remains obscure. Here we identify the product of the BRANCHLESS TRICHOMES (BLT) gene, a protein of ...