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The rhizosphere is the thin area of soil immediately surrounding the root system. It is a densely populated area in which the roots compete with invading root systems of neighboring plant species for space, water, and mineral nutrients as well as form positive and negative relationships with soil-borne microorganisms such as bacteria, fungi and insects.
Plant seeds exudate a variety of molecules into the spermosphere, [13] and roots exudate into the rhizosphere; these exudates include acids, sugars, polysaccharides and ectoenzymes, and collectively account for 40% of root carbon. [14] Exudation of these compounds has various benefits to the plant and to the microorganisms of the rhizosphere ...
The third mummy meaning was "the body of a human being or animal embalmed (according to the ancient Egyptian or some analogous method) as a preparation for burial" (1615), and "a human or animal body desiccated by exposure to sun or air" (1727). Mummia was originally used in mummy's first meaning "a medicinal preparation…" (1486), then in the ...
Galium aparine, with common names including cleavers, clivers, catchweed, robin-run-the-hedge, goosegrass, and sticky willy, is an annual, herbaceous plant of the family Rubiaceae. Names [ edit ]
Low-phosphorus concentrations in the soil increase hyphal growth and branching as well as induce plant exudation of compounds that control hyphal branching intensity. [22] [24] The branching of AM fungal hyphae grown in phosphorus media of 1 mM is significantly reduced, but the length of the germ tube and total hyphal growth were not affected.
Plants which are heterozygous on the waxy gene (Wx:wx) can be characterised by staining the pollen with iodine. Half of the pollen will be blue and half brown whereas the kernels will stay blue (very helpful in backcrossing program). If the plant is homozygous recessive (wx:wx) the whole pollen will be brown and the kernel too.
There have been reports of 'star-jelly' for centuries. [7] John of Gaddesden (1280–1361) [8] mentions stella terrae (Latin for 'star of the earth' or 'earth-star') in his medical writings, describing it as "a certain mucilaginous substance lying upon the earth" and suggesting that it might be used to treat abscesses. [6]
Geranium viscosissimum displayed a capability to digest and absorb the 14 C-labeled algal protein placed on the sticky trichomes that the plant possesses. However, it is not known whether the digestive enzymes were produced by the plant itself or surface microbes. [ 5 ]