Search results
Results From The WOW.Com Content Network
Once the orchids have developed roots and leaves, transplant them into small pots with well-draining orchid mix. Sunlight. Direct sunlight can scorch your new plants, but indirect sunlight is a ...
An appressorium is formed and a penetration peg penetrates the leaf surface. [1] From there, hyphae grow throughout the leaf and infects all plant tissues. [1] While this pathogen enters through the leaf, the disease is caused by root rot that causes symptoms of foliar blight. The mycelium gives rise to chlamydospores and oospores. [1]
The low light levels and cool temperatures of winter cause plants to grow slower and make it harder for cuttings to root. But with these tips, you can encourage cuttings to root faster and reduce ...
Orchid mycorrhizae are critically important during orchid germination, as an orchid seed has virtually no energy reserve and obtains its carbon from the fungal symbiont. [1] [2] The symbiosis starts with a structure called a protocorm. [3] During the symbiosis, the fungus develops structures called pelotons within the root cortex of the orchid. [4]
The diagnosis of a P. cactorum infection of trees, is based on the identification of symptoms, in particular the oozing cankers, and confirmation of symptoms in a diagnosis lab or utilization of a field ELISA detection kit. [3] P. cactorum can be a major problem in apple orchards, as it can cause crown, collar, and root rots in apple trees.
The orchid family is one of the largest flowering plant families in the world. Orchids can be found on every continent except Antarctica, from the steamy jungles of Asia to the dry deserts of ...
The bacteria need a film of water to facilitate infection. The bacteria can also be transmitted from one plant to another when beetles feed on an infected plant and the bacteria becomes attached to the beetles mouthparts. [4] The bacteria Ralstonia solanacearum and related species cause bacterial wilt of bananas and plantains. [5]
Certain soil microflora can form tight associations with the root systems, or even grow within the root. Soil particles bound to roots are difficult to remove without injury to the roots that then allows a microbial attack. These associated microflora will generally overgrow the tissue culture medium before there is significant growth of plant ...