scholarly journals Host Plant Affects Symbiont Abundance in Bemisia tabaci (Hemiptera: Aleyrodidae)

Insects ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 501 ◽  
Author(s):  
Yan-Hong Liu ◽  
M. Mostafizur Rahman Shah ◽  
Yue Song ◽  
Tong-Xian Liu
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Bemisia Tabaci ◽  
Host Plants ◽  
Nitrogen Nutrition ◽  
Essential Amino Acids ◽  
Asia Minor ◽  
Plant Nitrogen ◽  
Two Populations ◽  
Plant Nitrogen Nutrition

Symbionts contribute nutrients that allow insects to feed on plants. The whitefly Bemisia tabaci Middle East-Asia Minor 1 (MEAM1) is a polyphagous pest that depends on symbionts to provide key nutrients that are deficient in the diet. Here, we established three whitefly populations on eggplants, cucumbers, and tomatoes and observed that they harbored the same symbiont taxa in different quantities. The amount of the primary symbiont, Portiera, decreased with increasing concentrations of host-plant essential amino acids (EAAs). Whitefly populations transferred to different plant species exhibited fluctuations in Portiera amounts in the first three or four generations; the amount of Portiera increased when whitefly populations were transferred to plant species with lower EAAs proportions. As for the secondary symbionts, the whitefly population of eggplants exhibited lower quantities of Hamiltonella and higher quantities of Rickettsia than the other two populations. The changes of both symbionts’ abundance in whitefly populations after host-plant-shifting for one generation showed little correlation with the EAAs’ proportions of host plants. These findings suggest that host-plant nitrogen nutrition, mainly in the form of EAAs, influences the abundance of symbionts, especially Portiera, to meet the nutritional demands of whiteflies. The results will inform efforts to control pests through manipulating symbionts in insect–symbiont associations.

scholarly journals KISARAN INANG DAN DINAMIKA POPULASI Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) DI PERTANAMAN CABAI MERAH

2011 ◽  
Vol 11 (1) ◽  
pp. 47-56
Author(s):  
Hendrival Hendrival ◽  
Purnama Hidayat ◽  
Ali Nurmansyah
Keyword(s):  
Host Range ◽  
Host Plant ◽  
Plant Species ◽  
Bemisia Tabaci ◽  
Population Dynamic ◽  
Natural Enemy ◽  
Host Plants ◽  
Chili Pepper ◽  
Plant Families ◽  
Abundant Population

The study of host range and population dynamic of B. tabaci in red chili pepper fiel dswas conducted in Sub-district of Pakem, District of Sleman, Province of Daerah Istimewa Yogyakarta during dry season of May-October 2009. The study of host plants of B. tabaci from the red chili pepper fields revealed that there were 27 species of host plants belong to 22 genera of 13 families including crops and weeds. The host plants belong to families of Araceae, Amaranthaceae, Asteraceae, Brassicaceae, Capparidaceae, Convolvulaceae, Euphorbiaceae, Lamiaceae, Oxalidaceae, Papilionaceae, Rubiaceae, Solanaceae and Sterculiaceae. The host plant families of Asteraceae and Euphorbiaceae had the most abundant population of B. tabaci. Geminivirus-like symptoms were found in the weeds of A. conyzoides and A. boehmerioides. Population of B. tabaci adults correlated with abundance of host plant species found in the red chili pepper fields. The population of B. tabaci in red chili pepper fields was affected by natural enemy population. Population dynamic of the parasitoid Eretmocerus sp. correlated with population dynamic of the parasitized nymph of B. tabaci. Parasitoid Eretmocerus sp. was potentially good in controlling population of B. tabaci nymph in red chili pepper fields.

scholarly journals Ectomycorrhizal impacts on plant nitrogen nutrition: emerging isotopic patterns, latitudinal variation and hidden mechanisms

2014 ◽  
Vol 18 (1) ◽  
pp. 96-107 ◽  
Author(s):  
Jordan Mayor ◽  
Mohammad Bahram ◽  
Terry Henkel ◽  
Franz Buegger ◽  
Karin Pritsch ◽  
...  
Keyword(s):  
Nitrogen Nutrition ◽  
Latitudinal Variation ◽  
Plant Nitrogen ◽  
Plant Nitrogen Nutrition

scholarly journals Effect of host plant on the life history of the carnation tortrix moth Cacoecimorpha pronubana (Lepidoptera: Tortricidae)

2021 ◽  
pp. 1-7
Author(s):  
Marcin W. Zielonka ◽  
Tom W. Pope ◽  
Simon R. Leather
Keyword(s):  
Life History ◽  
Host Plant ◽  
Plant Species ◽  
Host Plants ◽  
Crop Protection ◽  
Plant Production ◽  
Pupal Weight ◽  
Production Environment ◽  
Host Plant Species ◽  
The Uk

Abstract The carnation tortrix moth, Cacoecimorpha pronubana (Hübner, [1799]) (Lepidoptera: Tortricidae), is one of the most economically important insect species affecting the horticultural industry in the UK. The larvae consume foliage, flowers or fruits, and/or rolls leaves together with silken threads, negatively affecting the growth and/or aesthetics of the crop. In order to understand the polyphagous behaviour of this species within an ornamental crop habitat, we hypothesized that different host plant species affect its life history traits differently. This study investigated the effects of the host plant species on larval and pupal durations and sizes, and fecundity (the number of eggs and the number and size of egg clutches). At 20°C, 60% RH and a 16L:8D photoperiod larvae developed 10, 14, 20 and 36 days faster when reared on Christmas berry, Photinia (Rosaceae), than on cherry laurel, Prunus laurocerasus (Rosaceae), New Zealand broadleaf, Griselinia littoralis (Griseliniaceae), Mexican orange, Choisya ternata (Rutaceae), and firethorn, Pyracantha angustifolia (Rosaceae), respectively. Female pupae were 23.8 mg heavier than male pupae, and pupal weight was significantly correlated with the duration of larval development. The lowest and the highest mean numbers of eggs were produced by females reared on Pyracantha (41) and Photinia (202), respectively. Clutch size differed significantly among moths reared on different host plants, although the total number of eggs did not differ. This study showed that different ornamental host plants affect the development of C. pronubana differently. Improved understanding of the influence of host plant on the moth's life history parameters measured here will help in determining the economic impact that this species may have within the ornamental plant production environment, and may be used in developing more accurate crop protection methodologies within integrated pest management of this insect.

Plant nitrogen nutrition status in intercrops– a review of concepts and methods

2021 ◽  
Vol 124 ◽  
pp. 126229
Author(s):  
Gaëtan Louarn ◽  
Laurent Bedoussac ◽  
Noémie Gaudio ◽  
Etienne-Pascal Journet ◽  
Delphine Moreau ◽  
...  
Keyword(s):  
Nitrogen Nutrition ◽  
Nutrition Status ◽  
Plant Nitrogen ◽  
Plant Nitrogen Nutrition

Plant nitrogen nutrition: The roles of arbuscular mycorrhizal fungi

2021 ◽  
pp. 153591
Author(s):  
Kun Xie ◽  
Yuhan Ren ◽  
Aiqun Chen ◽  
Congfan Yang ◽  
Qingsong Zheng ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Nitrogen Nutrition ◽  
Arbuscular Mycorrhizal ◽  
Plant Nitrogen ◽  
Plant Nitrogen Nutrition

Photoindication of Plant Nitrogen Nutrition

2021 ◽  
pp. 159-175
Author(s):  
Rafail A. Afanas’ev ◽  
Genrietta E. Merzlaya ◽  
Michael O. Smirnov
Keyword(s):  
Nitrogen Nutrition ◽  
Plant Nitrogen ◽  
Plant Nitrogen Nutrition
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