Egg parasitoid exploitation of plant volatiles induced by single or concurrent attack of a zoophytophagous predator and an invasive phytophagous pest

Zoophytophagous insect predators can induce physiological responses in plants by activating defence signalling pathways, but whether plants can respond to facultative phytophagy by recruiting natural enemies remains to be investigated. In Y-tube olfactometer bioassays, using a system including a Vicia faba plant, the zoophytophagous predator Podisus maculiventris and the egg parasitoid Telenomus podisi, we first demonstrated that T. podisi females are attracted by broad bean plants damaged by feeding activity of P. maculiventris and on which host egg masses had been laid, while they are not attracted by undamaged plants or plants damaged by feeding activity alone. In a second experiment, we evaluated the impact of the invasive phytophagous pest Halyomorpha halys on this plant volatile-mediated tritrophic communication. Results showed that the invasive herbivorous adults do not induce plants to recruit the native egg parasitoid, but they can disrupt the local infochemical network. In fact, T. podisi females are not attracted by volatiles emitted by plants damaged by H. halys feeding alone or combined with oviposition activity, nor are they attracted by plants concurrently infested by P. maculiventris and H. halys, indicating the specificity in the parasitoid response and the ability of the invasive herbivore in interrupting the semiochemical communication between plants and native egg parasitoids. To the best of our knowledge, this is the first study showing that zoophytophagous predator attacks induce indirect plant defences similarly to those defence strategies adopted by plants as a consequence of single or concurrent infestations of herbivorous insects

Lateralized declarative-like memory for conditional spatial information in domestic chicks (Gallus gallus)

Declarative memory is an explicit, long-term memory system, used in generalization and categorization processes and to make inferences and to predict probable outcomes in novel situations. Animals have been proven to possess a similar declarative-like memory system. Here, we investigated declarative-like memory representations in young chicks, assessing the roles of the two hemispheres in memory recollection. Chicks were exposed for three consecutive days to two different arenas (blue/yellow), where they were presented with two panels, each depicting a different stimulus (cross/square). Only one of the two stimuli was rewarded, i.e., it hid a food reward. The position (left/right) of the rewarded stimulus remained constant within the same arena, but it differed between the two arenas (e.g., reward always on the left in the blue context and on the right in the yellow one). At test, both panels depicted the rewarded stimulus, thus chicks had to remember food position depending on the previously experienced contextual rule. Both binocular and right-eye monocularly-tested chicks correctly located the reward, whereas left-eye monocularly-tested chicks performed at the chance level. We showed that declarative-like memory of integrated information is available at early stages of development, and it is associated with a left hemisphere dominance

Kata Pengantar

Alhamdulillah akhirnya kami bisa meneruskan edisi ke-3 volume 1 e-Journal Agro-Industri Indonesia ini dengan bantuan dan dukungan penuh staf pengajar di Departemen Teknologi Industri, IPB, Bogor.  Edisi ke 3 ini sekaligus menandai kembalinya semangat tim untuk melanjutkan kelangsungan  e-Journal dalam pembahasan yang lebih baru.   Pada edisi ke-3 ini kami menerima 17 naskah yang direvisi dan ditetapkan menjadi sembilan judul. Ciri bahasan yang dikelola pada edisi ke-3 ini lebih didominasi oleh bidang penelitian berbasis teknologi pengolahan bahan non pangan dan material baru.  Tentu saja sebagai cerminan diskusi dan bidang garapan yang menjadi arus utama dalam Agro-industri kami juga menyertakan artikel jurnal dalam pembahasan pemasaran. Harapan kami sebagai penutup volume satu kami pada edisi ke 4 mendatang akan dikelola dengan lebih tajam dan lebih cepat dipublikasikan.  Besar harapan kami stamina  dan kualitas pembahasan juga akan menyertai seluruh tahapan pekerjaan anggota dewan redaksi e-journal ini.  Akhirnya kami sampaikan terimakasih  banyak atas keikutsertaan semua pihak, baik dari sisi penyediaan substansi artikel maupun pekerjaan  teknis yang telah memungkinkan edisi ini bisa kita realisasikan

Nectar-inhabiting bacteria: Effects on egg parasitoids of invasive stink bugs

Pests and diseases account for 40% of the food crop losses worldwide [1]. In the era of climate change and global trade, pest occurrence is projected to rise, subsequently increasing the losses in crop production [2]. In this gloomy scenario, it is more than ever crucial to reinforce the resilience of our agroecosystems [3]. Increasing plant diversity in the agricultural landscape leads to a rise in the diversity and abundance of natural enemies of pests [4, 5], such as predators and parasitoids, which are involved in biological control of insect pests. However, the increased occurrence of these natural enemies does not necessarily translate into reductions in pest occurrence [6, 7]. There may be various factors behind this discrepancy. Flowering plants are assumed to improve parasitoid performance by providing food resources, such as nectar, which is a sugar-rich solution on which adult parasitoids rely for their energetic and nutritional needs [8]. However, we still do not understand how floral provisioning contributes to the efficiency of pest suppression by parasitoids. A hidden component may be the colonisation of nectar by microbes, which alter its quality [9]. In this study, the performance of the following three parasitoids was observed: Trissolcus basalis, Ooencyrtus telenomicida and Anastatus bifasciatus. These parasitoids are important in terms of pest control [10] since they attack the eggs of the invasive stink bugs, which have gained a global importance as plant health threats [11, 12]. Nectar was provided ad libitum to female adults that remained in vials. The nectar provided was either fermented by different microbes or non-fermented nectar (control). All microbes were bacteria, which had been previously isolated from the nectar of Fagopyrum esculentum, and belonged to the phyla Firmicutes, Proteobacteria and Actinobacteria. The parasitoids performance was assessed in terms of the number of days during which the insects remained alive. Moreover, the attraction of parasitoids to the bacteria- fermented nectar versus non-fermented nectar was studied by using a four-chamber static olfactometer [13]. The olfactometer consisted of an arena for the insect to walk on and, below the arena, it was divided equally into four chambers, in which the nectar solution was kept on a filter paper. The parasitoids attraction was assessed in terms of their residence time on top of the chambers. Overall, this work highlights the importance of considering the role of nectar-inhabiting microbes in shaping the interactions between parasitoids and their food resources. The results will be discussed in terms of biological control

Daftar Isi

Daftar Isi E- Jurnal Vol 4 No 1 (Juni 2015) No Judul Penulis Korespodensi Halaman 1 BUSINESS MODEL DEVELOPMENT OF CANDIED RED CHILLI (Capsicum annum) Indah Yuliasih 214 2 IMPLEMENTATION OF SERVICE RECOVERY WITH SURVIVAL ANALYSIS (CASE STUDY :MITRA NASIONAL KUALITAS, LTD) Taufik Djatna 222 3 PARTICLEBOARD PRODUCTION FROM CASTOR CAKE MEAL (Ricinus communis L.) BY STEAM EXPLOSION PRETREATMENT Ika Amalia Kartika 230 4 PRODUCTION OF BINDERLESS PARTICLEBOARD FROM CASTOR CAKE MEAL (Ricinus communis L.) Ika Amalia Kartika 236 5 DESAIN PRODUK MAKANAN RINGAN UNTUK IBU HAMIL DENGAN MENGGUNAKAN QUALITY FUNCTION DEPLOYMENT (QFD)   Akbar Andayani 244

Daftar Isi

Daftar Isi E- Jurnal Vol 4 No 1 (Juni 2015) No Judul Penulis Korespodensi Halaman 1 BUSINESS MODEL DEVELOPMENT OF CANDIED RED CHILLI (Capsicum annum) Indah Yuliasih 214 2 IMPLEMENTATION OF SERVICE RECOVERY WITH SURVIVAL ANALYSIS (CASE STUDY :MITRA NASIONAL KUALITAS, LTD) Taufik Djatna 222 3 PARTICLEBOARD PRODUCTION FROM CASTOR CAKE MEAL (Ricinus communis L.) BY STEAM EXPLOSION PRETREATMENT Ika Amalia Kartika 230 4 PRODUCTION OF BINDERLESS PARTICLEBOARD FROM CASTOR CAKE MEAL (Ricinus communis L.) Ika Amalia Kartika 236 5 DESAIN PRODUK MAKANAN RINGAN UNTUK IBU HAMIL DENGAN MENGGUNAKAN QUALITY FUNCTION DEPLOYMENT (QFD)   Akbar Andayani 244

Daftar Isi

Daftar Isi E- Jurnal Vol 3 No 1 (Desember 2014) No Judul Penulis 1 Pembuatan Biofilm Selulosa Asetat dari Selulosa Mikrobial Nata de Cassava CELLULOSE ACETAT BIOFILM PRODUCTION FROM MICROBIAL CELLULOSE NATA DE CASSAVA Khaswar Syamsu* dan Tutus Kuryani 2 Pengembangan Model Bisnis Produk Dodol Rumput Laut (Eucheuma cottonii)   BUSINESS MODEL DEVELOPMENT OF SEAWEED-MADE “DODOL” (Eucheuma cottonii) Indah Yuliasih* dan Fahmi Tri Wendrawan   3 Strategi Penetrasi Pasar Produk Pasta Gigi Gambir untuk Perawatan Anak MARKET PENETRATION STRATEGY OF GAMBIER TOOTHPASTE FOR CHILDREN’S TEETH CARE Lien Herlina* dan Sulayman 4 Pemanfaatan Beras Pecah dan Penambahan Tepung-Tepungan Lokal untuk Meningkatkan Kualitas Kerupuk Beras   THE UTILIZATION OF BROKEN RICE AND LOCAL FLOURS TO IMPROVE THE QUALITY OF RICE CHIPS Titi Candra Sunarti* dan Michael     5 Isolasi dan Identifikasi Monoasilgliserol Omega-3 (Monoester Omega 3)   ISOLATION AND IDENTIFICATION OF MONOASILGLISEROL OMEGA-3 (MONOESTER OMEGA-3) Sapta Raharja* dan Dwi Cahyani 6 Optimasi Penghambatan Pengendapan Jus Jambu Biji Merah dengan Metode Sonikasi   OPTIMIZATION INHIBITION OF PRECIPITATION GUAVA JUICE BY SONIFICATION METHOD Sapta Raharja* dan Ade Damayanti 7 Usulan Desain Model Bisnis Lapis Bogor Sangkuriang BUSINESS MODEL DESIGN OF LAPIS BOGOR SANGKURIANG Sukardi* dan M Linggar Putra   8 Pengaruh Konsentrasi Enzim dan Waktu Hidrolisis Enzimatis Terhadap Mutu Frukto-Oligosakarida dari Inulin Umbi Dahlia (Dahlia Pinnata)   THE INFLUENCE OF ENZYME CONCENTRATION AND TIME HYDROLYSIS TO FRUCTO-OLIGOSACCHARIDE QUALITY FROM DAHLIA TUBER (Dahlia pinnata) Djumali Mangunwidjaja*, Mulyorini Rahayuningsih, dan Reni Suparwati 9 STABILIZATION OF SLUDGE FROM WASTEWATER TREATMENT PLANT (WWTP) USING INDIGENOUS BACTERIA STARTER IN AEROBIC SLUDGE DIGESTER   Titi Candra Sunarti*, Suprihatin, dan Ramiza Dewaranie Lauda    

Kata Pengantar

Alhamdulillah akhirnya kami bisa meneruskan edisi ke-3 volume 1 e-Journal Agro-Industri Indonesia ini dengan bantuan dan dukungan penuh staf pengajar di Departemen Teknologi Industri, IPB, Bogor.  Edisi ke 3 ini sekaligus menandai kembalinya semangat tim untuk melanjutkan kelangsungan  e-Journal dalam pembahasan yang lebih baru.   Pada edisi ke-3 ini kami menerima 17 naskah yang direvisi dan ditetapkan menjadi sembilan judul. Ciri bahasan yang dikelola pada edisi ke-3 ini lebih didominasi oleh bidang penelitian berbasis teknologi pengolahan bahan non pangan dan material baru.  Tentu saja sebagai cerminan diskusi dan bidang garapan yang menjadi arus utama dalam Agro-industri kami juga menyertakan artikel jurnal dalam pembahasan pemasaran. Harapan kami sebagai penutup volume satu kami pada edisi ke 4 mendatang akan dikelola dengan lebih tajam dan lebih cepat dipublikasikan.  Besar harapan kami stamina  dan kualitas pembahasan juga akan menyertai seluruh tahapan pekerjaan anggota dewan redaksi e-journal ini.  Akhirnya kami sampaikan terimakasih  banyak atas keikutsertaan semua pihak, baik dari sisi penyediaan substansi artikel maupun pekerjaan  teknis yang telah memungkinkan edisi ini bisa kita realisasikan

Daftar Isi

Daftar Isi E- Jurnal Vol 3 No 1 (Desember 2014) No Judul Penulis 1 Pembuatan Biofilm Selulosa Asetat dari Selulosa Mikrobial Nata de Cassava CELLULOSE ACETAT BIOFILM PRODUCTION FROM MICROBIAL CELLULOSE NATA DE CASSAVA Khaswar Syamsu* dan Tutus Kuryani 2 Pengembangan Model Bisnis Produk Dodol Rumput Laut (Eucheuma cottonii)   BUSINESS MODEL DEVELOPMENT OF SEAWEED-MADE “DODOL” (Eucheuma cottonii) Indah Yuliasih* dan Fahmi Tri Wendrawan   3 Strategi Penetrasi Pasar Produk Pasta Gigi Gambir untuk Perawatan Anak MARKET PENETRATION STRATEGY OF GAMBIER TOOTHPASTE FOR CHILDREN’S TEETH CARE Lien Herlina* dan Sulayman 4 Pemanfaatan Beras Pecah dan Penambahan Tepung-Tepungan Lokal untuk Meningkatkan Kualitas Kerupuk Beras   THE UTILIZATION OF BROKEN RICE AND LOCAL FLOURS TO IMPROVE THE QUALITY OF RICE CHIPS Titi Candra Sunarti* dan Michael     5 Isolasi dan Identifikasi Monoasilgliserol Omega-3 (Monoester Omega 3)   ISOLATION AND IDENTIFICATION OF MONOASILGLISEROL OMEGA-3 (MONOESTER OMEGA-3) Sapta Raharja* dan Dwi Cahyani 6 Optimasi Penghambatan Pengendapan Jus Jambu Biji Merah dengan Metode Sonikasi   OPTIMIZATION INHIBITION OF PRECIPITATION GUAVA JUICE BY SONIFICATION METHOD Sapta Raharja* dan Ade Damayanti 7 Usulan Desain Model Bisnis Lapis Bogor Sangkuriang BUSINESS MODEL DESIGN OF LAPIS BOGOR SANGKURIANG Sukardi* dan M Linggar Putra   8 Pengaruh Konsentrasi Enzim dan Waktu Hidrolisis Enzimatis Terhadap Mutu Frukto-Oligosakarida dari Inulin Umbi Dahlia (Dahlia Pinnata)   THE INFLUENCE OF ENZYME CONCENTRATION AND TIME HYDROLYSIS TO FRUCTO-OLIGOSACCHARIDE QUALITY FROM DAHLIA TUBER (Dahlia pinnata) Djumali Mangunwidjaja*, Mulyorini Rahayuningsih, dan Reni Suparwati 9 STABILIZATION OF SLUDGE FROM WASTEWATER TREATMENT PLANT (WWTP) USING INDIGENOUS BACTERIA STARTER IN AEROBIC SLUDGE DIGESTER   Titi Candra Sunarti*, Suprihatin, dan Ramiza Dewaranie Lauda