Abstracts of the 1st Latin American Meeting of ... - ALAEQ

Abstracts of the 1st Latin American Meeting of

Chemical Ecology

Colonia del Sacramento, Uruguay October 17-20, 2010

Organized by: Latin American Association of Chemical Ecology Laboratory of Chemical Ecology, Facultad de Qu?mica,

Universidad de la Rep?blica, Uruguay

Organizing Committee

Andr?s Gonz?lez (Uruguay, President) Pablo Guerenstein (Argentina, Vice-president)

Carmen Rossini (Uruguay) Jan Bergmann (Chile) Paulo H. Zarbin (Brazil) Mauricio Bento (Brazil) Walter Leal (USA) Eraldo Lima (Brazil)

Local Organizing Committee

Laboratory of Chemical Ecology, Facultad de Qu?mica, Universidad de la Rep?blica: Martina D?az Luc?a Castillo Carolina Sellanes Paula Altesor Mar?a Laura Umpi?rrez Manuel Minteguiaga Estela Santos Florencia Do?o Ver?nica Rivero Soledad Camarano Valeria Cal Carmen Rossini Andr?s Gonz?lez

Scientific Committee

Martin Aluja (Mexico) Klaus Jaffe (Venezuela) Clara Beatriz Hoffmann-Campos (Brazil) Andres Quiroz (Chile) Nancy Barreto (Colombia) Maria Carolina Blassioli Moraes (Brazil) Iris B. Scatoni (Uruguay)

Dear Colleagues,

Welcome to Uruguay and to the 1st Meeting of the Latin American Association of Chemical Ecology (ALAEQ). We are proud to host this event, which we hope will stand as a landmark of the field in our region.

Chemical Ecology in Latin America continues to grow. The need for sustainable pest management strategies and the remarkable biological diversity, mostly open for discovery, are key factors that drive our field forward. In the past, the region hosted two ISCE meetings in Chile (1995) and Brazil (2000); and since 1999, the Brazilian Meetings (EBEQs) have become well established. We are now launching the Latin American Association of Chemical Ecology, which will be a platform for intraregional collaborations and student exchange, as well as a bridge into Latin America for ISCE and APACE members.

We are very excited by the response of our Latin American colleagues; we have about 150 participants from seven countries in the region. We are also proud about the participation of leading scientists from North America and Europe, and we appreciate their support to ALAEQ..

Have a great, productive and fun meeting!!

Jan Bergmann, Carmen Rossini, Andr?s Gonz?lez

Welcome from Thomas Eisner, and Jerrold Meinwald

October 4, 2010

Amigos y colegas ? bienvenidos a Uruguay!

Chemical Ecology is far from a new subject in Uruguay. Over a half-century ago, Clemente Estable and Maria Isabel Ardao initiated a pioneering study of the chemical defenses of a local opilionid, Acanthopachylus aculeatus, in Montevideo. In collaboration with Louis Fieser at the Department of Chemistry at Harvard University, they established the structures of three alkylated p-benzoquinones which serve as the chief bioactive components of the arthropod's defensive secretion. This painstaking chemical characterization required over a hundred milligrams of material. Today this analysis could be carried out on nanograms! This million-fold increase in analytical power has opened the door to studies of biotic chemical interactions that could only have been dreamed of until now.

As a consequence of improved communication, biologists and chemists working anywhere have the opportunity to collaborate as never before. That these cooperative studies will bring forth progress in medicine, agriculture, and environmental preservation is a certainty. At the same time, it will be advances in the basic sciences that will have the largest impact on our field, enabling the pursuit of entirely new areas of both pure and applied research by future generations of scientists. Who knows what the next million-fold improvement in analytical capability will make possible?

With its vast, largely unexplored biological riches, Latin America offers boundless opportunities for chemical ecological research. We applaud your seizing these opportunities, as it is clear from the presentations at this Meeting that you are doing. May this Meeting mark the start of a concerted effort to advance the frontiers of Chemical Ecology in Latin America! There is every reason to hope that the 21st century will be a "golden age," worldwide, for the subject that we all love!

Buena suerte!

Thomas Eisner, Jerrold Meinwald Cornell University, Ithaca, NY 14853, USA

TABLE OF CONTENTS

PLENARY LECTURES

PL - 1 Molecular Analysis of the Evolution of Pheromone Communication in Moths:

New Answers to Old Questions ......................................................................................

31

Christer L?fstedt

PL - 2 Neuroethology of Sex Pheromone Olfaction ...............................................................

32

Thomas C. Baker

PL - 3 Sensory Correlates of Host-seeking Behavior of Mosquitoes.....................................

33

Rickard Ignell

PL - 4 Non-host Signalling in Plants, Animals and Humans:

A New Paradigm for Pest Control...................................................................................

34

Michael A. Birkett, Toby J. Bruce and John A. Pickett

PL - 5 Chemical Ecology of Fruit Flies (Diptera: Tephritid ae)

and their Natural Enemies..............................................................................................

35

Mart?n Aluja

PL - 6 New Approaches to Natural Products and Metabolomics:

Applications to Nematode Chemical Ecology...............................................................

36

Arthur S. Edison

PL - 7 Semiochemicals - Structural Principles and Evolution ...............................................

37

Wittko Francke

PL - 8 Inhibition of the Chemical Communication in Insects:

A Promising Approach to Pest Control? ........................................................................

38

Angel Guerrero

PL - 9 Chemistry and Applications of Mealybug Pheromones .............................................

39

Jocelyn G. Millar, Yunfan Zou, Jardel Moreira, Rebeccah Waterworth,

Bruno Figad?re, Kent Daane, and Walt Bentley.

PL - 10 Using Chemical Ecology to Study Lepidopteran Migration ........................................

40

Jeremy N. McNeil

SYMPOSIA

Symposium: Neuroethology of Odor Sensing

Coordinator: Pablo G. Guerenstein

S - 1 Introduction: Why Neuroethology of Olfaction in Latin America? ............................

43

Pablo Guerenstein

7

S - 2 Switching Attraction to Inhibition: a Neuroethological Mechanism

of Post-Mating Sexual Abstinence ................................................................................

44

Romina B. Barrozo

S - 3 Learning Related Plasticity in the Antennal Lobe Helps

Discrimination of Similar Floral Odors ..........................................................................

45

Patricia C. Fern?ndez, Fernando F. Locatelli, Anna Yoshihiro, Brian H Smith

S - 4 Early Olfactory Experience Modifies Neural Activity

and Shapes the Primary Olfactory Center of an Insect Brain ....................................

46

Andr?s Arenas, Mart?n Giurfa, Jean-Christophe Sandoz, Jean-Marc

Devaud, Walter M. Farina

S - 5 In vivo Control of Olfactory Receptor Neuron Input to the Olfactory

Bulb by Presynaptic Inhibition.......................................................................................

48

Nicol?s P?rez, Matt Wachowiak

Symposium: Chemical Ecology of Disease Vectors

Coordinators: Alicia N. Lorenzo Figueiras and Marcelo Lorenzo

S - 6 Chemical Ecology of Ticks ...............................................................................................

50

L?gia M. F. Borges, Kennedy K. Gachoka, Carla C. B. Louly

S - 7 Practical Application of Olfactory Cues for Monitoring and Control

of Aedes aegypti in Brazil ..................................................................................................

52

Alvaro E. Eiras, Mart?n Geier, Andreas Rose, Owen Jones

S - 8 Searching for Aggregation Pheromones in the Haematophagous Bug

Triatoma infestans...............................................................................................................

53

Alicia Lorenzo Figueiras, Claudio Lazzari, Marcelo Lorenzo, Patricia Ju?rez

S - 9 Triatomine Sexual Behaviour is Mediated by Pheromones........................................

55

Gina Barcelos Pontes, Ana Cristina Renna de Vitta, Bj?rn Bohman

, Claudia Andrea Zacharias, Gabriel Manrique, C Rikard Unelius,

Marcelo Gustavo Lorenzo

Sympsosium: Pheromone Chemistry

Coordinator: Paulo H. Zarbin

S - 10 Larval Secretion of Chilecomadia valdiviana (Lepidoptera: Cossidae):

Identification, Synthesis, and Biological Activity ........................................................

57

Jan Bergmann, M. Fernanda Flores, Luis J. Reyes

S - 11 Evidence for an Unusual Pheromone from a South American

Coreid Bug, Phthia picta (Hemiptera: Heteroptera: Coreidae) .....................................

58

Jeffrey R. Aldrich, Angela M. Palacio,Carla F. F?varo,

Mauro A.C. de M. Rodrigues, Paulo H.G. Zarbin

8

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