A patchy growth via successive and simultaneous cambia: key to success of the most widespread mangrove species Avicennia marina?
A patchy growth mechanism was proposed, with an optimal growth at distinct moments in time at different positions around the stem circumference. This strategy creates the opportunity to form several growth layers simultaneously, as observed in 14 % of the studied trees, which may optimize tree growth under favourable conditions. Strong evidence was provided for a mainly endogenous trigger controlling cambium differentiation, with an additional influence of current environmental conditions in a trade-off between hydraulic efficiency and mechanical stability.
Prostate cancer patient advocates provide a broad range of opinions on the spectrum of cancer care. Similar studies among advocates involved in other malignancies may be worthwhile.