( Dinoflagelletes ( ( ( produce light ) ( when ( ( ( the deformation ) ( of ( ( the cell ) ( by ( minute forces ) ) ) ) ) ( triggers ( its luminescence ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Dinoflagelletes)) (VP (VBP produce) (NP (NN light)) (SBAR (WHADVP (WRB when)) (S (NP (NP (DT the) (NN deformation)) (PP (IN of) (NP (NP (DT the) (NN cell)) (PP (IN by) (NP (JJ minute) (NNS forces)))))) (VP (VBZ triggers) (NP (PRP$ its) (NN luminescence)))))) (. .)))
Dinoflagelletes  produce light when the deformation of the cell by minute forces triggers its luminescence.
(ROOT (S (NP (NNP Luminescence)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (NP (DT the) (NN process)) (SBAR (WHADVP (WRB where)) (S (NP (NN light)) (VP (VBZ is) (VP (VBN produced) (PP (IN without) (NP (NN heat))))))))))) (. .)))