Environmental control of phytoplankton cell size
نویسندگان
چکیده
منابع مشابه
Adaptive evolution of phytoplankton cell size.
We present a simple nutrient-phytoplankton-zooplankton (NPZ) model that incorporates adaptive evolution and allometric relations to examine the patterns and consequences of adaptive changes in plankton body size. Assuming stable environmental conditions, the model makes the following predictions. First, phytoplankton should evolve toward small sizes typical of picoplankton. Second, in the absen...
متن کاملFunctional Diversity of Phytoplankton in the Mediterranean Sea: Environmental Forcing on Cell Size and Ecophysiology
Size is a crucial biological trait that determines the metabolism and energy fluxes in cells through resources requirement and acquisition, as well as the “susceptibility” of cells to environmental changes. The aim of our contribution is to do a synthesis of the relations between size – pico vs nano+microphytoplankton – and environmental forcings that have been investigated in different trophic...
متن کاملOptimal phytoplankton cell size in an allometric model
The competitive ability of phytoplankton cells is simulated in a model chemostat in which cell size is considered to be an adaptive trait. Parameters describing nutrient uptake kinetics are constrained by empirically derived allometric rules. With a steady input of a single nutrient, the evolutionarily stable cell size is selected through competition among phytoplankton. We find that large cell...
متن کاملPhytoplankton in a changing world: cell size and elemental stoichiometry
ZOE V. FINKEL1*, JOHN BEARDALL2, KEVIN J. FLYNN3, ANTONIETTA QUIGG4,5, T. ALWYN V. REES6 AND JOHN A. RAVEN7 1 ENVIRONMENTAL SCIENCE PROGRAM, MOUNT ALLISON UNIVERSITY, SACKVILLE, NEW BRUNSWICK, CANADA E4L 1G7, SCHOOL OF BIOLOGICAL SCIENCES, MONASH UNIVERSITY, PO BOX 18, CLAYTON VIC 3800, AUSTRALIA, INSTITUTE OF ENVIRONMENTAL SUSTAINABILITY, UNIVERSITY OF SWANSEA, WALLACE BUILDING, SWANSEA SA2 8P...
متن کاملCell-Size Control.
Cells of a given type maintain a characteristic cell size to function efficiently in their ecological or organismal context. They achieve this through the regulation of growth rates or by actively sensing size and coupling this signal to cell division. We focus this review on potential size-sensing mechanisms, including geometric, external cue, and titration mechanisms. Mechanisms that titrate ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 1974
ISSN: 0024-3590
DOI: 10.4319/lo.1974.19.2.0361