Search results
Results from the WOW.Com Content Network
Shortly after the fungus enters an orchid, the fungus produces intracellular hyphal coils called pelotons in the embryos of developing seedlings and the roots of adult plants. [4] The formation of pelotons in root cortical cells is a defining anatomical structure in orchid mycorrhiza that differentiate it from other forms of fungi. [ 17 ]
Acibenzolar-S-methyl is the ISO common name [3] for an organic compound that is used as a fungicide. Unusually, it is not directly toxic to fungi but works by inducing systemic acquired resistance, the natural defence system of plants. [4] [5] [6]
Epoxiconazole is a fungicide active ingredient from the class of azoles developed to protect crops. In particular, the substance inhibits the metabolism of fungi cells infesting useful plants, and thereby prevents the growth of the mycelia (fungal cells). Epoxiconazole also limits the production of conidia (mitospores).
It can survive up to two years without a sugarbeet crop being planted. Once attached to the plant the fungus penetrates the tissue and begins to infect and kill nearby tissue. [161] As the disease progresses these individual rotted spots begin to come together to form massive areas of dead tissue. This causes severely infected leaves to ...
Translaminar fungicides redistribute the fungicide from the upper, sprayed leaf surface to the lower, unsprayed surface. Systemic fungicides are taken up and redistributed through the xylem vessels. Few fungicides move to all parts of a plant. Some are locally systemic, and some move upward. [3] [4]
Roots. Unlike other plants, orchid roots don't branch out in traditional ways. They also aren't brown. Healthy orchid roots are a light green color (sometimes nearly white) and firm to the touch ...
Azoxystrobin is a broad spectrum systemic fungicide widely used in agriculture to protect crops from fungal diseases. It was first marketed in 1996 using the brand name Amistar and by 1999 it had been registered in 48 countries on more than 50 crops.
The solubility of benzimidazole fungicides is low at physiological pH and becomes high at low pH. In plants, carbendazim, thiabendazole and fuberidazole are mobile, i.e. systemic, and benomyl and thiophanate-methyl are converted to carbendazim. [2] This conversion also occurs in soils and animals. [1]