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Sticky trichomes of a carnivorous plant, Drosera capensis with a trapped insect, contain proteolytic enzymes Glandular trichomes on Cannabis, rich in cannabinoids Trichomes on the surface of a Solanum scabrum leaf Trichomes on the petiole of a Solanum quitoense leaf Antirrhinum majus buds with glandular hairs Scanning electron micrograph of a trichome on a leaf of Arabidopsis thaliana; the ...
Although trichomes are used for protection, they can be disadvantageous for plants at times because trichomes may reflect light away from the plant that can be used to photosynthesize. [2] The cuticle is a layered structure of waxes and hydrocarbons located on the outer layer of the epidermis which also helps protect the plant from stress. [2]
Trichomes usually reverse their polarity randomly with an average period on the order of minutes to hours. [100] [101] Many species also form a semi-rigid sheath that is left behind as a hollow tube as the trichome moves forward. When the trichome reverses direction, it can move back into the sheath or break out. [102] [3]
Bacteria of the genus Oscillatoria occur in rows of cells of similar size. They form filaments called trichomes. Many trichomes are enveloped in a firm casing, but in this genus the casing is almost non-existent. This gives the filaments easier mobility in all directions.
Trichoderma infections have caused major crop losses and widespread epidemics in mushroom growing regions, with estimates of damages caused by infections totaling to tens of millions of dollars. Infected substrate leads to lower yields due to competition, and also causes mushrooms to be malformed, discolored, lesioned, and of lower mass than is ...
Plant pathogens, organisms that cause infectious plant diseases, include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. [2] In most plant pathosystems, virulence depends on hydrolases and enzymes that degrade the cell wall.
Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Organisms that cause infectious disease include fungi , oomycetes , bacteria , viruses , viroids , virus -like organisms, phytoplasmas , protozoa , nematodes and parasitic plants . [ 2 ]
The trichomes serve the purpose of nitrogen fixation as well as nutrient exchange with host diatoms. [2] The location of Richelia within their various diatom symbionts is not fully known, though it is commonly assumed to be within the diatom's periplasmic space between the plasmalemma and the frustule .