Is Trypsin Inhibitor a Plant Defense Against the Larvae of the Forest Tent Caterpillar (Malacosoma Disstria)?. PDF Download
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Author: Zhe Shi
Publisher:
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Category :
Languages : en
Pages :
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Author: Zhe Shi
Publisher:
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Category :
Languages : en
Pages :
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Author: Tong-Xian Liu
Publisher: Springer Science & Business Media
ISBN: 3642178154
Category : Science
Languages : en
Pages : 508
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In recent years the field of entomology, due in part to the penetration of other disciplines, has made rapid progress. “Recent Advances in Entomological Research: From Molecular Biology to Pest Management” includes 25 chapters contributed by more than 40 distinguished entomologists and introduces the latest progress in entomology, from molecular biology, insect-plant interactions and insecticide toxicology, to emerging technologies in pest management. Not only is the book interesting and informative, but it provides useful, innovative research advances and will serve as a valuable resource for entomologists, zoologists, botanists and other researchers in the field of plant protection. Tong-Xian Liu is a professor of entomology at the College of Plant Protection, Northwest A&F University, China. Le Kang is a professor of entomology at the Institute of Zoology, Chinese Academy of Sciences, China.
Author: A. K. Raheja
Publisher:
ISBN:
Category :
Languages : en
Pages : 378
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![Characterization of the Expression and Function of Silverleaf Withefly-induced Gene that Encodes a [beta]-glucosidase PDF](https://books.google.com/books/content/images/frontcover/3t5FglaQcXkC?fife=w80-h100)
Author: Yun-Shu Chen
Publisher:
ISBN:
Category : Arabidopsis
Languages : en
Pages : 808
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Author: Robert Miller Jetton
Publisher:
ISBN:
Category : Defoliation
Languages : en
Pages : 238
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Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 312
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"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Author: Hongliang Su
Publisher:
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Category :
Languages : en
Pages :
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"Plants protect themselves against caterpillar herbivory by activating the jasmonate (JA) biosynthetic pathway that produces the bioactive form of the plant defense hormone, 7-jasmonoyl-L-isoleucine. The JA signaling pathway leads to the production of many defensive compounds. Most research has focused on the effects of these JA-dependent plant defensive compounds on the caterpillar herbivore. In comparison, relatively little is known about the direct effects of the defensive phytohormone JA and intermediates in its biosynthetic pathway on the caterpillar herbivore.This research focuses on determining the effects of defense phytohormones in the jasmonate pathway, such as 12-oxo-phytodienoic acid (OPDA) and JA, and their precursor, linolenic acid, on caterpillar development, mortality and pupal weight. The effects on two caterpillar species were compared. The cabbage looper, Trichoplusia ni (Hübner), is a facultative specialist on plants in the Brassicaceae family. In contrast, caterpillars of the beet armyworm, Spodoptera exigua (Hübner) are generalists, which means that they can feed on a diverse range of plant species.This study shows that jasmonic acid and OPDA affect S. exigua and T. ni development, pupal weight and mortality. Caterpillars fed an artificial diet containing either OPDA or JA were developmentally delayed compared to caterpillars fed the control diet (artificial diet without phytohormone). This delay was temporary and by day 12, all caterpillars reached the pupal stage. T. ni males were smaller than females when fed an artificial diet containing OPDA (4 μg/g) or JA (0.15 μg/g or 6 μg/g). T. ni males were smaller when fed an artificial diet containing OPDA (1.5 μg/g or 4 μg/g) or JA (0.15 μg/g or 6 μg/g) compared to caterpillars fed the control diet (artificial diet without phytohormone). S. exigua males were larger when fed an artificial diet containing OPDA (4 μg/g) or JA (0.15 μg/g or 6 μg/g) compared to caterpillars fed the control diet (artificial diet without phytohormone). S. exigua females fed an artificial diet containing JA (0.15 μg/g or 6 μg/g) were smaller than other female caterpillars fed the control diet (artificial diet without phytohormone). JA was moderately toxic to both caterpillar species but the other compounds tested were not. The LD50 for jasmonic acid for the two caterpillar species was determined by conducting mortality curves using 4th instar larvae of each species. The JA LD50 in T. ni and S. exigua caterpillars is 3.8 ± 0.7 μg and 5.8 ± 0.3 μg, respectively. Therefore, S. exigua caterpillars are better able to cope with JA than T. ni caterpillars. It is possible that the generalist species have enhanced mechanisms to detoxify these phytohormones.Glutathione S-transferase (GST) is an enzyme that is important for the detoxification of plant defensive compounds. GST enzyme activity was compared between T. ni and S. exigua caterpillars. S. exigua caterpillar GST activity was high (U/mg soluble protein at alkaline pH) when caterpillars were fed an artificial diet containing JA. T. ni caterpillar GST activity (U/mg soluble protein at alkaline pH) was high when caterpillars were fed an artificial diet containing OPDA or JA. The optimal pH for GST activity was at alkaline pH. This research furthers our understanding of caterpillar herbivores strategies to overcome plant resistance mechanisms"--
Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 850
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Author: Andreas Schaller
Publisher: Springer Science & Business Media
ISBN: 1402081820
Category : Science
Languages : en
Pages : 450
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This timely book provides an overview of the anatomical, chemical, and developmental features contributing to plant defense, with an emphasis on plant responses that are induced by wounding or herbivore attack. The book first introduces general concepts of direct and indirect defenses, followed by a focused review of the different resistance traits. Finally, signal perception and transduction mechanism for the activation of plant defense responses are discussed.
Author: Paul Christou
Publisher: Springer
ISBN: 9781461457961
Category : Technology & Engineering
Languages : en
Pages : 1869
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Book Description
Gathering some 90 entries from the Encyclopedia of Sustainability Science and Technology, this book covers animal breeding and genetics for food, crop science and technology, ocean farming and sustainable aquaculture, transgenic livestock for food and more.
