scholarly journals SIGS vs HIGS: a study on the efficacy of two dsRNA delivery strategies to silence Fusarium FgCYP51 genes in infected host and non‐host plants

2019 ◽  
Vol 20 (12) ◽  
pp. 1636-1644 ◽  
Author(s):  
Aline Koch ◽  
Lisa Höfle ◽  
Bernhard Timo Werner ◽  
Jafargholi Imani ◽  
Alexandra Schmidt ◽  
...  
Keyword(s):  
Host Plants ◽  
Infected Host ◽  
Delivery Strategies

Enantioselective Antiphytoviral Activity of l-(α-carboxyalkyl)-4,5-dimethyl imidazol-3-oxides in Systemically Infected Host Plants

1993 ◽  
Vol 137 (4) ◽  
pp. 309-316
Author(s):  
Ute Bauer ◽  
S. Kluge ◽  
P. Nuhn ◽  
P. Stengerand ◽  
H. Lettau
Keyword(s):  
Host Plants ◽  
Infected Host

PCR–RFLP-based typing for differentiation of Tomato yellow leaf curl virus (TYLCV) genotypes from infected host plants in Korea

Virus Genes ◽  
2013 ◽  
Vol 47 (3) ◽  
pp. 579-583
Author(s):  
Sung Oh ◽  
Seongdae Kim ◽  
Nagarajan Vinod ◽  
Jung Mo Koo ◽  
Kyung Min Jang ◽  
...  
Keyword(s):  
Host Plants ◽  
Tomato Yellow Leaf ◽  
Infected Host ◽  
Yellow Leaf ◽  
Pcr Rflp ◽  
Leaf Curl Virus ◽  
Leaf Curl

scholarly journals How Does Vector Bemisia Tabaci use Visual and Olfactory Cues in Orientation to A Virus-Infected Host Plant?

2021 ◽  
Author(s):  
Zelong Zhang ◽  
Haifang He ◽  
Minghui Yan ◽  
Beibei Zhang ◽  
Jingjing Li ◽  
...  
Keyword(s):  
Host Plant ◽  
Cucumis Sativus ◽  
Bemisia Tabaci ◽  
Visual Cues ◽  
Host Plants ◽  
Vital Role ◽  
Infected Host ◽  
Gas Chromatography Mass Spectrometry ◽  
Visual Preference ◽  
Persistently Transmitted Viruses

Abstract Cucurbit chlorotic yellows virus (CCYV) has caused serious damage to melon crops in many countries in recent years. It is exclusively transmitted by the notorious pest Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) in a semi-persistent manner. Previous studies have shown that both persistently and non-persistently transmitted viruses can manipulate orientation and performance of vector insects through changing host phenotype to facilitate virus spread. However, as a semi-persistently transmitted virus, how CCYV affect vector B. tabaci in locating host plants by altering physiological traits of host plants is still unknown. In this study, we investigated B. tabaci visual and olfactory preference between healthy and CCYV-infected host plant Cucumis sativus. Volatile profiles of healthy and CCYV-infected C. sativus plants were analyzed by using gas chromatography-mass spectrometry (GC-MS). Initially, it was found that vector insects preferred to settle down CCYV-infected Cucumis sativus seedlings in free choice. The concentrations of total volatiles and terpenes in cucumber plants were notably decreased after CCYV infection, and especially, the concentrations of α-pinene, β-ocimene, α-farnesene, and nonanal, responsible for olfactory attraction of B. tabaci, dramatically reduced in CCYV-infected plants. Subsequently, we investigated the visual preference of B. tabaci to CCYV-infected and healthy host, and found that B. tabaci adults showed significant preference to CCYV-infected host. CCYV induced yellowing symptoms in host leaves may explain the visual preference of B. tabaci adults to infected hosts. This study indicated that visual cues could play a vital role in vector insects locating virus-infected host plants.

AUTOLYTIC PRODUCTION OF HYDROGEN CYANIDE BY CERTAIN SNOW MOLD FUNGI

1962 ◽  
Vol 40 (1) ◽  
pp. 85-88 ◽  
Author(s):  
E. W. B. Ward ◽  
J. B. Lebeau
Keyword(s):  
Hydrogen Cyanide ◽  
Host Plants ◽  
Type A ◽  
Infected Host ◽  
Shake Culture ◽  
Type B ◽  
Snow Mold ◽  
Production Of Hydrogen ◽  
Natural Media

Hydrogen cyanide production by two pathogenic isolates of an unidentified basidiomycete was studied in shake culture in synthetic and natural media. Both isolates release HCN in infected host plants but one isolate (type A) failed to produce HCN in culture. Curves for growth and HCN production by the second isolate (type B) indicated that HCN is a product of autolysis and is not dependent on the provision of specific substrates in the medium.

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

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