scholarly journals O3-Induced Leaf Senescence in Tomato Plants Is Ethylene Signaling-Dependent and Enhances the Population Abundance of Bemisia tabaci

2018 ◽  
Vol 9 ◽  
Author(s):  
Honggang Guo ◽  
Yucheng Sun ◽  
Hongyu Yan ◽  
Chuanyou Li ◽  
Feng Ge
Keyword(s):  
Bemisia Tabaci ◽  
Leaf Senescence ◽  
Population Abundance ◽  
Ethylene Signaling ◽  
Tomato Plants

scholarly journals Impairment in Sulfite Reductase Leads to Early Leaf Senescence in Tomato Plants

2014 ◽  
Vol 165 (4) ◽  
pp. 1505-1520 ◽  
Author(s):  
Dmitry Yarmolinsky ◽  
Galina Brychkova ◽  
Assylay Kurmanbayeva ◽  
Aizat Bekturova ◽  
Yvonne Ventura ◽  
...  
Keyword(s):  
Leaf Senescence ◽  
Sulfite Reductase ◽  
Tomato Plants ◽  
Early Leaf Senescence

Leaf Senescence and Ethylene Signaling

2021 ◽  
pp. 153-171
Author(s):  
Yasir Yousuf Peerzada ◽  
Muhammad Iqbal
Keyword(s):  
Leaf Senescence ◽  
Ethylene Signaling

scholarly journals Inoculation of tomato plants with rhizobacteria suppresses development of whitefly Bemisia tabaci (GENNADIUS) (HEMIPTERA: ALEYRODIDAE): Agro-ecological application

PLoS ONE ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. e0231496
Author(s):  
Redouan Qessaoui ◽  
Abderrahim Amarraque ◽  
Hind Lahmyed ◽  
Abdelhadi Ajerrar ◽  
El Hassan Mayad ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Tomato Plants ◽  
Ecological Application

Time–dose–mortality data and modeling for the entomopathogenic fungus Aschersonia placenta against the whitefly Bemisia tabaci

2013 ◽  
Vol 59 (2) ◽  
pp. 97-101 ◽  
Author(s):  
Junzhi Qiu ◽  
Feifei Song ◽  
Lihui Mao ◽  
Jie Tu ◽  
Xiong Guan
Keyword(s):  
Relative Humidity ◽  
Sweet Potato ◽  
Bemisia Tabaci ◽  
Entomopathogenic Fungus ◽  
Mortality Data ◽  
Tomato Plants ◽  
Mortality Models ◽  
Conidial Concentration ◽  
Sweet Potato Whitefly ◽  
Time Dose

The fungus Aschersonia placenta FJSM was evaluated for control of the sweet potato whitefly, Bemisia tabaci. Bemisia tabaci nymphs (1st–4th instars) on tomato plants in the greenhouse (25–27 °C, 70%–85% relative humidity) were sprayed with suspensions containing 0, 104, 105, 106, 107, or 108 A. placenta FJSM conidia/mL. Mortality of fungus-treated 1st to 3rd instar nymphs ranged from 93% to 100% but was <25% for 4th instar nymphs; the fungus sporulated from 70% to 80% of the fungus-treated B. tabaci cadavers. LD50 and LD90 values decreased with time after treatment and increased with instar. LT50 values decreased with conidial concentration. The data were then described with time–dose–mortality models. The results indicate that A. placenta FJSM has potential as a mycoinsecticide for control of B. tabaci.

scholarly journals Rate of Tomato yellow leaf curl virus Translocation in the Circulative Transmission Pathway of its Vector, the Whitefly Bemisia tabaci

2001 ◽  
Vol 91 (2) ◽  
pp. 188-196 ◽  
Author(s):  
Murad Ghanim ◽  
Shai Morin ◽  
Henryk Czosnek
Keyword(s):  
Salivary Glands ◽  
Bemisia Tabaci ◽  
Virus Genome ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Tomato Plants ◽  
Hemolymph Sample ◽  
Infected Tomato ◽  
Leaf Curl Virus ◽  
Leaf Curl

Whiteflies (Bemisia tabaci, biotype B) were able to transmit Tomato yellow leaf curl virus (TYLCV) 8 h after they were caged with infected tomato plants. The spread of TYLCV during this latent period was followed in organs thought to be involved in the translocation of the virus in B. tabaci. After increasing acquisition access periods (AAPs) on infected tomato plants, the stylets, the head, the midgut, a hemolymph sample, and the salivary glands dissected from individual insects were subjected to polymerase chain reaction (PCR) without any treatment; the presence of TYLCV was assessed with virus-specific primers. TYLCV DNA was first detected in the head of B. tabaci after a 10-min AAP. The virus was present in the midgut after 40 min and was first detected in the hemolymph after 90 min. TYLCV was found in the salivary glands 5.5 h after it was first detected in the hemolymph. Subjecting the insect organs to immunocapture-PCR showed that the virus capsid protein was in the insect organs at the same time as the virus genome, suggesting that at least some TYLCV translocates as virions. Although females are more efficient as vectors than males, TYLCV was detected in the salivary glands of males and of females after approximately the same AAP.

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