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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 ...
Ageratina adenophora (Nepali: कालीमुन्टे, romanized: kalimunte) plant found in Panchkhal Valley, Nepal. Ageratina adenophora (synonym Eupatorium adenophorum), commonly known as Crofton weed, is a species of flowering plant in the family Asteraceae native to Mexico and Central America.
While the human life span has increased markedly since the 19th century, new research shows that despite recent advancements in medicine, we may have reached our longevity peak—and most of today ...
Myoporum viscosum is a shrub which sometimes grows to 2 metres (7 ft) in height with young branches that are flattened and sticky. The leaves are arranged alternately and mostly 20–52 millimetres (0.8–2 in) long, 7–20 millimetres (0.3–0.8 in) wide, thick and stiff.
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.
Galls (upper left and right) formed on acorns on the branch of a pedunculate (or English) oak tree by the parthenogenetic generation Andricus quercuscalicis.. The large 2 cm gall growth appears as a mass of green to yellowish-green, ridged, and at first sticky plant tissue on the bud of the oak, that breaks out as the gall between the cup and the acorn.
A new study suggests human life expectancy is plateauing. In 2022, life expectancy in the US was 77.5 years, but values vary across states. Hawaii has the longest life expectancy, while ...