Apical growth

TBA is readily absorbed and translocated by plants. It moves both acropetally and basipetally and causes typical auxin effects in sensitive plants. It strongly inhibits apical growth and leaf formation (Zimmermann and Hitchcock, 1951). It does not cause epinasty in the MCPA-tolerant weeds but stops their growth so that they cannot compete with the crop at the later growth stages. 

Fungi grow almost exclusively by what is known as apical growth, with synthesis of new wall material predominantly at the tips of the growing cells at the periphery of the colony and at branching locations. 

C. albicans PHRl required for morphogenesis by defining novel function for apical growth 143... 

Linear wgans of mycelial fungi, which often have a thick rind, are differentiated internally and extend by apical growth of the whole organ. 

On analysis by height class, it was found that the maximum apical growth occurs within the height class 1.2-1.8 m and falls off to 4.1 m, maintaining a low growth thereafter up to the maximum of 12 m or more. 

Kadota, A., Wada, M., and Furuya, M., Apical growth of protonemata in Adiantum capillus-veneris 3. Action spectra for the light effect on dark cessation of apical growth and the intracellular photoreceptive site. Plant ScL Lett., 15, 193, 1979. 

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