What is meant by Rhizoplane?
Definition of rhizoplane : the external surface of roots together with closely adhering soil particles and debris.
Who coined the term Rhizoplane?
In 1904 the German agronomist and plant physiologist Lorenz Hiltner first coined the term “rhizosphere” to describe the plant-root interface, a word originating in part from the Greek word “rhiza”, meaning root (Hiltner, 1904; Hartmann et al., 2008). Schematic of a root section showing the structure of the rhizosphere.
What is Rhizophore and give example?
: one of the downward-growing leafless dichotomous shoots in club mosses of the genus Selaginella that bear tufts of adventitious roots at the apex.
What is the difference between rhizosphere and Rhizoplane?
Rhizoplane is the root surface zone where microorganisms attach themselves using surface structures such as flagella, fimbriae or cell surface polysaccharides. The rhizosphere is a thin layer of soil immediately surrounding plant roots. This is an extremely important and active area for root activity and metabolism.
What is Ectorhizosphere?
… The zone of ectorhizosphere is formed from soil particles adjacent to the roots (Figure 9.1). Bulk soil is the portion of soil which is not the component of the rhizosphere (Lambers et al. 2008; Bashir et al.
What do you mean by Phyllosphere?
The phyllosphere is a term used in microbiology to refer to the total above-ground surface of a plant when viewed as a habitat for microorganisms. The phyllosphere can be further subdivided into the caulosphere (stems), phylloplane (leaves), anthosphere (flowers), and carposphere (fruits).
What is meant by Velamen?
Velamen or velamen radicum is a spongy, multiple epidermis that covers the roots of some epiphytic or semi-epiphytic plants, such as orchid and Clivia species.
What is rhizophore and its function?
function in lycophytes feature of Selaginella is the rhizophore, a proplike structure that originates at a point of branching and that forks dichotomously after making contact with the soil or a hard surface. Rhizophores are most readily seen in clambering species.
What is rhizophore pteridophyta?
ABSTRACT. RHIZOPHORE IN ANGIOSPERMS. Roots, stems and leaves are present in all vascular plants: pteridophytes, gymnosperms and angiosperms. Rhizophore are shoots that grow downwards with roots in the apex and that are recognised in living Selaginella and Carboniferous Lepidodendrales.
What is phyllosphere effect?
The phyllosphere is a term used in microbiology to refer to the total above-ground surface of a plant when viewed as a habitat for microorganisms. Some are beneficial to the plant, others function as plant pathogens and may damage the host plant or even kill it.
Who coined term phyllosphere?
The term phyllosphere was coined by Last (1955) and Ruinen (1956) to describe the plant leaf surface as an environment that is physically, chemically and biologically distinct from the plant leaf itself or the air surrounding it.
What is rhizosphere Mycoflora?
The rhizosphere, a belowground root-affected soil portion, represents a unique ecological niche for diverse range of microbiota such as nematodes, bacteria, actinobacteria, and fungi living in close proximity with the root system for essential ecosystem services.