The food of termites is mainly cellulose, which is obtained from wood, grass, leaves, humus, manure of herbivorous animals, and materials of vegetative origin (e.g., paper, cardboard, cotton).
Although belief in the reality of the canals began to fade even before the turn of the century, with the last credible sightings by Trumpler in 1924 and Fournier and Pettit in 1939, confidence in a vegetative origin for the "wave of darkening" seems to have reached its peak at the dawn of the space age.
The yebB::Tn 10dTc insertion is near the plasmid vegetative replication origin at the greatest possible distance from lac on the F′ lac plasmid.
Similarities were found among the majority of the examined leaf traits for both vegetative plant origins including leaf mass per area, stomatal conductance, net photosynthetic rate, hydraulic axial conductivity, indicators of leaf midrib vascular architecture, as well as for the majority of cell wall nanomechanical traits.
The symmetric increasing and decreasing gradients in the larger region between ori-beta and ori-alpha very well fits with in vivo evidence for clockwise and counter-clockwise modes of replication from ori-beta and ori-alpha, respectively, known for the highly replicative R-plasmid (R6K) and its derivatives in E.coli, carrying a similar arrangement of vegetative replication origins [ 48].
Briefly, the pRW plasmids contain the gene for the plasmid replication initiator protein (trfA), the origin for vegetative DNA replication (oriV), the gene encoding resistance to tetracycline (tetA), the promoter-less lacZYA operon, and an EcoRI/HindIII insert, cloned immediately downstream of five LacI operator sites, with flanking 18-bp target sites for the yeast meganuclease I-SceI.
Periphysis: Variation of growth habit of vegetative propagules due to their origin from different environments, such as shade and sun leaves on an individual tree.
Plant Genetic Resources has been defined by FAO as any material of plant origin, including reproductive and vegetative propagation material which contains functional units of heredity and which has real or potential value for food and agriculture.
This is similar to studies involving LEC1, which suggests that the identity of the embryonic foliar organs influences the identity of subsequent vegetative organs despite their different developmental origins [ 15].
Further, the clustering of accessions based on molecular information was not related to the geographic origin, indicating widespread seed or vegetative dispersion of particular genotypes.
The next conclusion derived from this classification was a fundamentally different concept of thallus organization in these algae: colonies of unicellular organisms (packets or pseudofilaments) and their vegetative cells are spores, according to their origin (Ettl, 1988 a, b; Sluiman et al., 1989).
