Condensed Tannins in Cotton and Bollworm-Budworm (Lepidoptera: Noctuidae) Resistance

Smith, Wayne C.; McCarty, Jack C.; Altamarino, T. P.; Lege, K. E.; Schuster, Michael; Phillips, James M.; López, J. D.

doi:10.1093/jee/85.6.2211

Cited by 16 publications

(14 citation statements)

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“…Although there is still some debate concerning the adaptive significance of plant secondary metabolites (e.g. Smith et al 1992;Berenbaum 1995), in this study, the higher concentration of tannins in damaged leaves indicates their lower quality to herbivores, which is reflected in the lower rate of herbivore attack on these damaged shoots over control treatments.…”

Section: Discussionmentioning

confidence: 68%

Induced defences in the neotropical tree Bauhinia brevipes (Vog.) to herbivory: effects of damage-induced changes on leaf quality and insect attack

Cornelissen

Fernandes

2001

Trees

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Induced defences to herbivory are physical, nutritional, and allelochemical traits that change in plants following damage or stress, and that reduce the performance and/or preference of herbivores. The aim of this study was to verify the occurrence and effect of induced responses in Bauhinia brevipes (Vog.) (Leguminosae) which defend it against herbivores, through the manipulation of its leaves, and their effects on herbivore foraging behaviour. We selected 15 plants in the field, and three shoots per plant were subjected to one of three treatments: (1) damaged shoots (simulation of the main types of foliar herbivory and insect exclusion); (2) damaged control shoots (insect exclusion); and (3) control shoots (not manipulated). Water and nitrogen content, tannin concentration, levels of herbivory, and shoot growth rates were compared among treatments. Leaf quality varied among treatments. Damaged leaves showed higher tannin concentration, and lower water and nitrogen content compared to undamaged leaves. On the other hand, they experienced higher rates of herbivory than leaves on control shoots. Moreover, shoots that were experimentally induced showed a higher increase in final shoot length. These results suggest that simulated herbivory on B. brevipes reduced the nutritional quality of its leaves and increased the amount of secondary compounds, therefore altering insect herbivore attack and increasing shoot performance.Induced defences in the neotropical tree Bauhinia brevipes (Vog.) to herbivory: effects of damage-induced changes on leaf quality and insect attack

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Section: Discussionmentioning

confidence: 68%

Induced defences in the neotropical tree Bauhinia brevipes (Vog.) to herbivory: effects of damage-induced changes on leaf quality and insect attack

Cornelissen

Fernandes

2001

Trees

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“…Salah satu kandungan kimia pada tanaman dapat berupa senyawa tanin, merupakan penghambat enzim yang kuat bila terikat pada protein sehingga mempunyai sifat astrigensi (Manitto, 1991), yaitu kemampuan mengkerutkan mulut umumnya pada serangga (Salisbury & Ross, 1992). Apabila tanin berikatan secara komplek dengan protein dapat mempengaruhi jaringan tanaman yang dapat dicerna serta menurunkan ikatan komplek enzim-enzim pencernaan atau bertindak sebagai antifedan (zat penolak makan) serangga (Smith et al, 1992;Wassimi et al, 1988). Namun, pada penelitian ini tidak dianalisa kandungan kimia tertentu pada daun tanaman kedelai, sehingga hal ini merupakan dugaan awal.…”

Section: Hasil Dan Pembahasanunclassified

Identifikasi Fenotipik Galur-Galur Kedelai Terhadap Ketahanan Serangan Hama Ulat Grayak (Spodoptera Litura F.)

Susanto¹,

Adie²

2016

JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

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Phenotypic identification of soybean lines against armyworm pest resistance (Spodoptera litura F). This research consisted of two parts which aimed to find out the intensity of damage to the leaves and the influence of soybean on the biological aspect of armyworms. The materials tested were Shr/W-C-60, Aochi/Wil-60, 9837/K-D-8-185, 9837/K-D-3-185-95, W/9837-D-6-220, 9837/K-D-3-185-82, 9837/W-D-5-211, GI, G100H breeding lines and Wilis varieties. The research was conducted at a Balitkabi screenhouse in February 2011, using randomized block design and each treatment was replicated three times. The planting media were plastic pots (diameter 18 cm) filled with earth, two seeds per pot were planted and intensively raised. When the plants were 27 days old after planting, at each replication consisting of 10 materials, they were covered with gauze cages (2 x 2 x 2 m). Then the plants in each pot was infested with 10 instar I armyworm larvae. The other part of research was carried out in Balitkabi Breeding Improvement Laboratory. For testing purposes, there was a need for a third nodal leaf of soybean aged 27 days after planting in each tested material. The research used a completely randomized design each treatment was replicated three times. One nodal leaf in each material was placed in a petri dish 15 cm in diameter, which was coated with moist filter paper, and this was later called treatment. Each treatment was infested with one instar I armyworm larva. The result of research indicated that an assessment of soybean resistance to armyworms could be made from the density of the trichome and/or the length of the trichome on the leaves. The G100H breeding line was found to be resilient with its characteristics of having dense trichome (25/4 mm 2 ) and long trichome (1.1 mm). Key words: caterpillar army worm, soybean, trichoma ABSTRAKIdentifikasi fenotipik galur-galur kedelai terhadap ketahanan serangan hama ulat grayak (Spodoptera litura F). Penelitian terdiri dua bagian yang bertujuan untuk mengetahui intensitas kerusakan daun dan pengaruh kedelai terhadap aspek biologi ulat grayak. Materi yang diuji adalah galur Shr/W-C-60, Aochi/Wil-60, 9837/K-D-8-185, 9837/K-D-3-185-95, W/9837-D-6-220, 9837/K-D-3-185-82, 9837/W-D-5-211, GI, G100H dan varietas Wilis. Penelitian dilakukan di rumah kasa Balitkabi pada Februari 2011, dirancang menggunakan acak kelompok setiap perlakuan diulang tiga kali. Media tanam pot plastik (diameter 18 cm) yang diisi tanah, ditanam dua biji/pot dan dipelihara secara intensif. Saat tanaman berumur 27 hari setelah tanam (HST), pada setiap ulangan yang terdiri dari 10 materi disungkup dengan kurungan kasa (2 x 2 x 2 m). Selanjutnya tanaman pada masingmasing pot diinfestasi dengan larva ulat grayak instar I sebanyak 10 ekor. Penelitian lainnya dilakukan di Laboratorium Pemuliaan Balitkabi. Untuk pengujiannya dibutuhkan daun buku ketiga kedelai yang berumur 27 HST pada masing-masing materi yang diuji. Penelitian dirancang menggunakan acak lengkap yang diulang tiga kali. Satu daun buku ketiga pa...

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“…Insect herbivores that ingest high amounts of tannins fail to gain weight and may eventually die. The pigmented cotton, which is also less prone to bollworms attack, also possesses significantly high levels of condensed tannins that disrupt feeding and growth of chewing insects like Helicoverpa, Heliothis, and other similar species (Klocke and Chan, 1982;Smith et al, 1992;Navon et al, 1993;Wu and Guo, 2001), and sap-sucking species (Liu and Yang, 1991;Zhang and Liu, 2003;Ma et al, 2005). In addition, Wang (1997) reported that there were significant inhibitions caused non-interactionally by tannic acid and gossypol, in which the inhibition of the former was stronger than that of the latter, on the growth of cotton bollworm larvae.…”

Section: Tannin and Flavonoidsmentioning

confidence: 99%

“…Thus, resistant plants survived subject to laws of adaptation and natural selection (Smith, 1989;Zhang and Feng, 2000). Higher plants dominate much of the Earth's surface, and yet, as sessile organisms, they must continually resist attacks by various herbivores.…”

Section: Introductionmentioning

confidence: 99%

Advances in research of induced resistance to insects in cotton

Xiao-nan

Zhang

2009

Front. Biol. China

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Any change in a plant that occurs following herbivory or environmental factors is an induced response. These changes include phytochemical induction, increases in physical defenses, emission of volatiles that attract predators and parasitoids of herbivores, and reduction in plant nutritional quality for herbivores, which is termed induced resistance. Induced resistance has been demonstrated ubiquitously in plants. It is one of our goals to review what is known about the induced resistance to herbivorous insects in cotton, including three resistance secondary metabolites (terpenoid, tannin, and flavonoids) that are contained at any significant levels of resistance to herbivorous insects in cotton cultivates. In many cases, the quantities or quality of secondary metabolites in plant are changed after attacked by insects. This review focuses on induced plant resistance as quantitative or qualitative enhancement of defense mechanism against insect pests, especially on the abiotic-elicitors-induced resistance in cotton plants. The abiotic-elicitor of cupric chloride, an exogenous inorganic compound, may induce the secondary metabolites accumulation and is referred to as a copperinducible elicitor (CIE). Finally, we discuss how copperinducible elicitor may be used in the Integrated Pest Management (IPM) system for cotton resistance control.

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Condensed Tannins in Cotton and Bollworm-Budworm (Lepidoptera: Noctuidae) Resistance

Cited by 16 publications

References 0 publications

Induced defences in the neotropical tree Bauhinia brevipes (Vog.) to herbivory: effects of damage-induced changes on leaf quality and insect attack

Induced defences in the neotropical tree Bauhinia brevipes (Vog.) to herbivory: effects of damage-induced changes on leaf quality and insect attack

Identifikasi Fenotipik Galur-Galur Kedelai Terhadap Ketahanan Serangan Hama Ulat Grayak (Spodoptera Litura F.)

Advances in research of induced resistance to insects in cotton

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