Role of Defensive Antiviral Proteins from Higher Plants in the Management of Viral Diseases

Awasthi, L. P.; Singh, Samir; Verma, H. N.

doi:10.1007/978-81-322-2571-3_12

Cited by 2 publications

(4 citation statements)

References 40 publications

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“…In contrast to that observed with ZYMV infection, the LE of G. opposita was efficient in inhibiting CMV infection in C. pepo in 70% of the plants, but only at 1:40 dilution. Awasthi et al (2015) reported that ten-fold dilutions of the extracts dramatically reduced the inhibitory activity of viral infection. The results found in the present study contradict this finding.…”

Section: Resultsmentioning

confidence: 99%

“…According to Awasthi et al (2015), inhibitory activity was lost after one week storage for several of the extracts tested. However, M. jalapa LE remained active for up to one month, reaching percentage inhibition of eggplant infection by CMV of 100, 88, 75, 50, 44 and 0% when stored for 4, 8, 12, 16, 20 and 24 days at room temperature, respectively (Bharathi, 1999).…”

Section: Serological Assay (Das-elisa) Resultsmentioning

confidence: 99%

“…Caryophyllales is one of the largest orders of eudicots (APG IV, 2016), with approximately 12,500 species distributed in 39 families (Hernández-Ledesman et al, 2015), including Nyctaginaceae and Phytolaccaceae, which contain species with widely-studied inhibitory activity against viral infection due to antiviral proteins (Grasso & Shepherd, 1978;Duarte et al, 2021). In addition to Bougainvillea spectabilis and Phytolacca thyrsiflora, which exhibited excellent results (Noronha et al, 1989;Duarte et al, 1990), viral inhibitors have been extensively studied only in Celosia argentea (Amaranthaceae), Dianthus caryophyllus (Caryophyllaceae), Boerhaavia difusa, Mirabilis jalapa and B. spectabilis (Nyctaginaceae) and Phytolacca americana (Phytolaccaceae) (Awasthi et al, 2015). Tozetto et al (2002) described 60% inhibitory action of Mirabilis jalapa (Nyctaginaceae) leaf extract in C. pepo 'Caserta" / ZYMV pathosystem when applied up to 120 h before virus inoculation, and virus-infection inducible resistance has been associated with these extracts.…”

Section: Resumo Espécies De Caryophyllales Endêmicas Da Mata Atlântica Como Inibidoras De Infecção Viral Em Abobrinha-de-moitamentioning

confidence: 99%

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Endemic Atlantic Forest species of Caryophyllales as inhibitors of viral infection in zucchini

Pereira¹,

Alexandre²,

Chaves³

et al. 2021

Hortic. Bras.

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In Brazil, zucchini (Cucurbita pepo) is a socioeconomically important vegetable affected by damage caused primarily by zucchini yellow mosaic virus (ZYMV). Although the occurrence of cucumber mosaic virus (CMV) is less frequent, in C. pepo ‘Caserta’ plants it can cause symptoms such as mottle, mosaic, leaf and fruit distortion, as well as reduced plant development. To minimize the damage, the most widely used management technique is the preventive, albeit inefficient, application of insecticides, aimed at controlling aphids, the vectors of this virus. Thus, the search for more effective and less environmentally harmful control methods has been the target of investigations. The purpose of the present study was to assess the action of the extracts of four native Caryophyllales species, as inhibitors of infection by CMV and ZYMV in C. pepo, in addition to evaluating the possible induced resistance in this species. Fresh leaf extracts (LEs) of Guapira opposita, Pisonia ambigua (Nyctaginaceae), Gallesia integrifolia and Seguieria langsdorffii (Phytolaccaceae), previously assessed in the tobacco mosaic virus / Nicotiana glutinosa pathosystem, were submitted to progressive dilutions sprayed on cotyledonary C. pepo leaves 30 min before inoculation with CMV and ZYMV. Leaf extracts of G. integrifolia did not induce inhibition in any of the pathosystems assessed. Guapira opposita LEs inhibited the infection of plants inoculated with ZYMV below 50% but inhibited CMV infection by 70% at a concentration of 1:40. Given that leaf extracts of P. ambigua and S. langsdorffii induced high percentage inhibition, evident in the number of asymptomatic plants and confirmed by serological tests, these species were selected to assess induced resistance in pre-treatment experiments. The LEs were efficient in inhibiting ZYMV and CMV infection in C. pepo when applied up to 48 h before inoculation. The LEs of S. langsdorffii and G. opposita, also tested for this system, were efficient when applied up to 72 h before CMV inoculation. The LEs can be prepared from dry leaves and maintained at -20°C for at least three years, conserving their inhibitory activity. These results expand the possibilities for producers and consumers alike in the sustainable management of the main zucchini viruses, without damaging the environment.

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Section: Resultsmentioning

confidence: 99%

Section: Serological Assay (Das-elisa) Resultsmentioning

confidence: 99%

Section: Resumo Espécies De Caryophyllales Endêmicas Da Mata Atlântica Como Inibidoras De Infecção Viral Em Abobrinha-de-moitamentioning

confidence: 99%

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Endemic Atlantic Forest species of Caryophyllales as inhibitors of viral infection in zucchini

Pereira¹,

Alexandre²,

Chaves³

et al. 2021

Hortic. Bras.

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“…Hailstorm causes primary injuries due to direct impact of hails which causes heavy defoliation, shredding of leaf blades, breaking of branches and tender stems, lodging of plants, peeling of bark, stem lesions, cracking of fruits, heavy flower and fruit drop, etc. This is followed by secondary injuries which are nothing but the manifestations of primary injuries like dieback or wilting of damaged plant parts, loss of plant height, staining, bruises, discoloration of damaged parts like leaves and fruits affecting their quality and rotting of damaged fruits and/or tender stems and branches due to fungal and bacterial infections [9,37]. While, heavy rain, hail and strong wind affect crop yield in different ways, especially depending on the development stage.…”

Section: Hail Damage To Agricultural Production and Allied Agribusinessmentioning

confidence: 99%

Mitigation and Adaptation Strategies of Plants against Hailstorm under Changing Climate

Jaybhaye¹

2022

Plant Defense Mechanisms

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The growth, development and yield of crops as well as animal and fishery are depending on the prevailing extreme weather events. Vulnerability of agriculture to climate change is becoming increasingly apparent in recent years. During 2014 and 2020, India experienced episodes of abnormally widespread and untimely hailstorm events. The conversion of number of thunderstorms into hail storm events in India shows increasing trend day by day. And the type and level of hailstorm stress must be properly quantified through proper scientific planning for present as well as future references for finding mitigation and adaptation solutions. Keeping above in view, this review paper has been prepared. This study includes aspects covering atmospheric stress (hailstorm), their challenges and coping strategies in various agricultural enterprises including crops and livestock. This review paper will ignite the minds of all stakeholders including students and researchers to explore more in finding proper adaptation and mitigation measures. This study will pave the way for developing food and livelihood systems that will have greater economic and environmental resilience to risk. Therefore, the available information has been reviewed on formation of hailstorms, its characteristics and damage potential, forecasting and control mechanisms, mitigation and adaptions through different innovations and interventions.

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Role of Defensive Antiviral Proteins from Higher Plants in the Management of Viral Diseases

Cited by 2 publications

References 40 publications

Endemic Atlantic Forest species of Caryophyllales as inhibitors of viral infection in zucchini

Endemic Atlantic Forest species of Caryophyllales as inhibitors of viral infection in zucchini

Mitigation and Adaptation Strategies of Plants against Hailstorm under Changing Climate

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