Another mechanism that retards dispersal is a collar of trichomes
in the interior of the calyx tube.
The cotyledonary petiole (Figure 3B) has uniseriate epidermis with unicellular non-glandular trichomes
, collenchymatous and parenchymatous cortex and three collateral vascular bundles.
Functional interaction between leaf trichomes
, leaf wettability and the optical properties of water droplets.
Role of trichomes
in soybean resistance to cabbage looper, Trichoplusia ni.
So, this weak rate of the herbivors attack on the culture supposrts the hypothesis that the foliar trichomes
are the source of the limitation of the insects attack in the intercropping plots, thereby limiting the progress of cryptogamic deseases generally conveyed by these latters[43, 44, 60, 61,15].
Mite feeding induces the formation of erinosis, which according to Westphal (1977), are trichomes
abnormally developed due to the injection of toxic substances by A.
2008) who reported that trichome
density has negative correlation with the population of leafhopper (Amrasca biguttula biguttula) on the brinjal crop.
Non-glandular, unicellular, simple, slim and straight to slightly curved trichomes
featuring a papilous cuticle were observed mainly in the leaf midrib and secondary veins.
Both species have bitegmic and anatropous ovule, obturator, trichomes
and a resinuous gland, which is composed of flange-like structures that are modified bractlets (Webster and Webster, 1972).
, macro-hairs and silica bodies were absent.
A dense area of glandular trichomes
is located in a central depression of the inner tepals, and the style is slender below, with branches well developed, compressed, usually divided above into prominent acute crests and with a transverse stigmatic surface on the abaxial surface at the base of the crests (Ravenna, 2003; Goldblatt & Manning, 2008; Ravenna, 2009; Deble et al.
Stomatal index, stomatal density, and trichomes
density were analyzed for adaxial and abaxial surfaces of each biotype.