See:
http://journal.ashspublications.org/cgi/content/abstract/134/5/491?etoc
Link: journal.ashspublications.org/cgi/content/abstract/134/5/491?etoc
See:
http://journal.ashspublications.org/cgi/content/abstract/134/5/491?etoc
Link: journal.ashspublications.org/cgi/content/abstract/134/5/491?etoc
Also see:
SURVEY OF PLANT PIGMENTS: MOLECULAR AND ENVIRONMENTAL
DETERMINANTS OF PLANT COLORS