Vol.XLVI May, 1924 Xo. 5 



BIOLOGICAL BULLETIN 



THE PHYSIOLOGICAL AND SYMBIOTIC RELATION- 



5HIPS BETWEEN Till: INTESTINAL PROTOZOA 



M| IIKMITKS AND THKIR HOST, 



\\ I I II SPECIAL REFERENCE TO 



Rkl /< L'LITERMES FLA VIPES 



KOLLAR.* 



L. R CLEVELAND. 

 (Continued.) 



CONTENTS. 



.1 to ihcir Host: 

 :m (continued) : 

 c| termites die when transferred to thi-ir normal 



! 



' I - u K.ir to ccllulottc 



. -i u I and cellulose 



use lignin a food?. 



,'. fiMl of protozoa-harboring termites 



'lulose. when fed defaunated termites, prevci- 



- cannot digest wood or cellulose 



- die because they cannot digest their food 



Mcnts 



ted with protozoa can digest wood 



!>.ir!>or protozoa to be able to digest wood 



tozoa aid their host in the digestion of \v 



I y 



.; the wood for their host 



t ing and non-wood ingesting protozoa -' i 1 



In- l>acteria and fungi of termites -M'> 



'ntiul to the life of their host -'7 



on of termites and protozoa -' 1 7 







-uinm.iry 







* From tin I > ; .irtment of Medical Zoology. - .ni'l I'ublic 



li. John< Hopkin-; I'niversity. Baltimore. Maryland. 



a series of papers on th: L Tlie rir.-t paprr i the 



n l-tween the Food and M'>rplK. !>.!;> r,t Ti-Tniti - an-1 I 

 i lntr~tiii.il I'r.tn/oa," deals with tin- moro >jfni-r.i tin- sill 



and will upiM-.ir in tin- July Uyjj) number ol tin- 1 m '.mrnul of li 



14 203 



