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Table 1.

Diuretic and antidiuretic hormones present in the MTGM of Rhodniusand their actions

Activity
HormoneRhodnius peptideSequenceCropUMTLMT
Serotonin   
CRF-like DH (Zoone-DH) TGAVPSLSIV NPLDVLRQRL LLEIARRRMR QSQDQIQANR EMLQTI–NH2 
CT-like DH Rhopr-DH31 GLDLGLSRGF SGSQAAKHLM GLAAANYAGG P–NH2 0/+ 
Kinin (Leuma-KI) DPAFNSWG–NH2 
CAP2b Rhopr-CAPA-2 EGGFISFPRV–NH2 – – 
Activity
HormoneRhodnius peptideSequenceCropUMTLMT
Serotonin   
CRF-like DH (Zoone-DH) TGAVPSLSIV NPLDVLRQRL LLEIARRRMR QSQDQIQANR EMLQTI–NH2 
CT-like DH Rhopr-DH31 GLDLGLSRGF SGSQAAKHLM GLAAANYAGG P–NH2 0/+ 
Kinin (Leuma-KI) DPAFNSWG–NH2 
CAP2b Rhopr-CAPA-2 EGGFISFPRV–NH2 – – 

Table shows the effect of hormones on transport across the crop and upper(UMT) and lower (LMT) Malpighian tubule segments. Where the native hormone has not been identified, the sequence given is that of a peptide from the same family that has been tested for activity in Rhodnius

Activity symbols: stimulate, +; inhibit, –; no effect, 0. MTGM,mesothoracic ganglion mass (MTGM)

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