منابع مشابه
Prescience
Close to forty years ago, my senior colleague, Leslie Orgel, had the perspicacity to invent two novel disciplines, astrobotany and theochemistry, which he thought might be with us by the end of the century. I cannot remember what he wanted to include in these areas of research, but I want to report that one of these is flourishing now and that the other will soon appear. I only recently heard t...
متن کاملUpdate on Perennial Roots and Lifespan Perennial Roots to Immortality
Maximum lifespan greatly varies among species, and it is not strictly determined; it can change with species evolution. Clonal growth is a major factor governing maximum lifespan. In the plant kingdom, the maximum lifespans described for clonal and nonclonal plants vary by an order of magnitude, with 43,600 and 5,062 years for Lomatia tasmanica and Pinus longaeva, respectively. Nonclonal perenn...
متن کاملSimulating perennial ryegrass cutting
Perennial ryegrass is one of the most commonly cultivated forage species in Europe, where grazing and mowing (cutting) are used to manage this resource. Cutting can be characterized by its intensity (height) and its frequency. Combinations of these two factors affect mono-species grasslands productivity and could also modify the genotypic composition of heterogeneous populations. Indeed, the hi...
متن کاملPerennial allergic rhinitis and keratoconjunctivitis.
There are many studies dedicated to the allergic nose, but most of them deal with seasonal allergic rhinitis and particularly with acute experimental situations. Perennial allergic rhinitis is less well documented. When studying the allergic nose, several aspects must be taken into consideration: the genetic background of the patient, various environmental factors (antigens, air pollution, clim...
متن کاملGrowth Characteristics of Perennial Ryegrass
Mature perennial ryegrass plants in pastures persist through the asexual reproduction of the tiller. Leaves are initiated from the flanks of the tiller stem apex. Generally, two leaves arc growing on a tiller at any one time. New tiller buds may arise from the axils of mature leaves depending on environmental conditions. Flowering results from a physiological change at the stem apex, which then...
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ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2018
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fj.180901ufm