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Fungi are abundant in soil, but bacteria are more abundant. Fungi are important in the soil as food sources for other, larger organisms, pathogens, beneficial symbiotic relationships with plants or other organisms and soil health. Fungi can be split into species based primarily on the size, shape and color of their reproductive spores, which ...
A bacteriophage (/ b æ k ˈ t ɪər i oʊ f eɪ dʒ /), also known informally as a phage (/ ˈ f eɪ dʒ /), is a virus that infects and replicates within bacteria and archaea. The term is derived from Ancient Greek φαγεῖν (phagein) ' to devour ' and bacteria .
Do not grow around tomato plants, clover is a legume that makes the soil too fertile. Tomato plants need a mild nitrogen deficit to set fruit: Clover, like most legumes, hosts bacteria that fix nitrogen in the soil, helping fertilize nearby plants. Clover also provides ground cover, helping retain water in the soil as a "living mulch", and ...
Soil biology is the study of microbial and faunal activity and ecology in soil. Soil life, soil biota, soil fauna, or edaphon is a collective term that encompasses all organisms that spend a significant portion of their life cycle within a soil profile, or at the soil-litter interface.
The species was formerly named T-even bacteriophage, a name which also encompasses, among other strains (or isolates), Enterobacteria phage T2, Enterobacteria phage T4 and Enterobacteria phage T6. Use in research
In a 1945 study by Demerec and Fano, [4] T7 was used to describe one of the seven phage types (T1 to T7) that grow lytically on Escherichia coli. [5] Although all seven phages were numbered arbitrarily, phages with odd numbers, or T-odd phages, were later discovered to share morphological and biochemical features that distinguish them from T-even phages. [6]
The leaf litter and root exudates of some Eucalyptus species are allelopathic for certain soil microbes and plant species. [29] The tree of heaven, Ailanthus altissima, produces allelochemicals in its roots that inhibit the growth of many plants. Spotted knapweed (Centaurea) is considered an invasive plant that also utilizes allelopathy. [30]
Mutualism and allelopathy are also thought to cause plant–soil feedback. Studies have shown that, on average, plant–soil feedback tends to be negative; [3] however, there have been many notable exceptions, such as many invasive species. [4] Negative plant–soil feedback is thought to be an important factor in helping plants to coexist.
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