Deep sequencing-based transcriptome analysis of Plutella xylostella larvae parasitized by Diadegma semiclausum

Kairomon merupakan suatu zat kimia yang dikeluarkan oleh suatu spesies untuk menarik spesies yang berbeda seperti larva hama terhadap parasitoid. Sumber potensial kairomon bisa diperoleh dari kotoran, kelenjar ludah, sutera, kontaminasi tubuh, sekresi makan, dan sekresi pertahanan dari inang. Tujuan penelitian ini adalah untuk mengetahui keberadaan kairomon pada kotoran larva inang (larva P. xylostella) dan pengenceran terbaik dalam mengundang kedatangan parasitoid D. semiclausum. Pengujian kairomon menggunakan Rancangan Acak Lengkap (RAL), terdiri dari 4 perlakuan dan 7 ulangan. Perlakuan yaitu pengenceran kotoran inang pada 10-1, 10-2, (tanpa pengenceran = 100) dan kontrol. Hasil pengujian membuktikan bahwa kotoran larva Plutella xylostella dapat memandu kedatangan parasitoid D. semiclausum dengan indikator jumlah telur yang diletakkan pada pengenceran kotoran larva 10-1 dan 10-2 dan tingkat parasitisasi pada pengenceran kotoran larva 10-1 dan 10-0. Kotoran larva P. xylostella berperan sebagai kairomon bagi parasitoid D. semiclausum.

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EFIKASI INSEKTISIDA NABATI EKSTRAK DAUN Tephrosia vogelii Hook. TERHADAP Crocidolomia pavonana (F.) dan Plutella xylostella (L.) SERTA PENGARUHNYA PADA Diadegma semiclausum (Hellen)

Jurnal Ilmu-Ilmu Pertanian Indonesia ◽

10.31186/jipi.12.1.68-75 ◽

2017 ◽

Vol 12 (1) ◽

pp. 68-75

Author(s):

Agustin Zarkani ◽

Djoko Prijono

Keyword(s):

Plutella Xylostella ◽

Diadegma Semiclausum ◽

Tephrosia Vogelii

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Transcriptome Analysis of the Mud Crab (Scylla paramamosain) by 454 Deep Sequencing: Assembly, Annotation, and Marker Discovery

PLoS ONE ◽

10.1371/journal.pone.0102668 ◽

2014 ◽

Vol 9 (7) ◽

pp. e102668 ◽

Cited By ~ 22

Author(s):

Hongyu Ma ◽

Chunyan Ma ◽

Shujuan Li ◽

Wei Jiang ◽

Xincang Li ◽

...

Keyword(s):

Deep Sequencing ◽

Transcriptome Analysis ◽

Scylla Paramamosain ◽

Mud Crab ◽

Marker Discovery

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Effects of Two Cultivated Brassica spp. on the Development and Performance of Diadegma semiclausum (Hymenoptera: Ichneumonidae) and Cotesia vestalis (Hymenoptera: Braconidae) Parasitizing Plutella xylostella (Lepidoptera: Plutellidae) in Kenya

Journal of Economic Entomology ◽

10.1093/jee/toz144 ◽

2019 ◽

Vol 112 (5) ◽

pp. 2094-2102 ◽

Cited By ~ 1

Author(s):

Ruth Kahuthia-Gathu ◽

Stephen T O Othim

Keyword(s):

Host Plant ◽

Plutella Xylostella ◽

Development Time ◽

Trophic Levels ◽

Pupal Weight ◽

Vegetable Production ◽

Diadegma Semiclausum ◽

Cotesia Vestalis ◽

Positive Effects ◽

And Performance

AbstractThe diamondback moth (DBM), Plutella xylostella L., is the most destructive pest affecting vegetable production in Kenya and around the world. Parasitoids have shown promising results in lowering the pest populations and damage caused by DBM. However, variations in host plant quality have been reported to have bottom-up effects up to the third and fourth trophic levels. We assessed the effects of two cultivated Brassica varieties (cabbage, Brassica oleracea var. capitata L. cultivar ‘Gloria F1’ and kale, B. oleracea var. acephala L. cultivar ‘Thousand headed’) on the development and performance of the specialist pest P. xylostella and two exotic parasitoids Diadegma semiclausum (Hellen) and Cotesia vestalis (Haliday). The exposed larval period of DBM took about 1.5 d longer on kale than cabbage and the total immature development time of both females and males was significantly longer on kale than cabbage. Higher pupal weight and higher fecundity were recorded on DBM fed on kale. Development time of D. semiclausum and C. vestalis was not affected by the host crop as was the parasitism rate of D. semiclausum. Heavier male pupae and larger adults of D. semiclausum, as well as more fecund adults of C. vestalis, were obtained from hosts fed on cabbage. Larger adults of C. vestalis were obtained from herbivores fed on kale. These results show potentially positive effects of host plant allelochemicals that are detrimental to herbivores while promoting parasitoid development and performance, which can be harnessed for the control of DBM.

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