Role of Symbiosis in Relation to Agronomic Practices Towards Sustainable Management of Biotic Stresses and Improvement in Crops Productivity

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 11563

Special Issue Editors


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Co-Guest Editor
Deaprtment of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
Interests: biological control; host plant resistance

Special Issue Information

Dear Colleagues,

Most biotic stresses, i.e., diseases, pests, and pathogens, are big hurdles for achieving optimum productivity of crops. Meanwhile, food demand is also increasing, with a more urgent need to feed an exponentially increasing world population. There are several remediations technologies that can be used to address these issues. However, a deep understanding of plant–microbial symbiosis in relation to agronomic practices is a better way to approach the issues raised by biotic stresses. These techniques are environmentally friendly in nature. Currently, researchers have been particularly interested in the inoculation of beneficial microorganisms (BM). These BM can form a symbiotic relationship with the plant roots. Such symbiosis results in hormonal and growth regulator secretions that improve the immunity of plants, helping them to survive under biotic stresses. Most symbiotic complexes and biocontrol organisms kill such other organisms that act as hosts for diseases, such as insects.

Furthermore, limited literature is available on the relationship of agronomic practices (mulching, tillage, weeding, fertilizer, irrigation and sowing methods, etc.) in connection to symbiosis to overcome biotic stress issues. This Special Issue will help to cover the knowledge gaps of the agronomic practices and symbiotic mechanisms involved in crops immunization and competition of symbiotic and pathogenic microorganisms under biotic stresses. Therefore, we invite researchers to contribute to this Special Issue, entitled“Role of Symbiosis and Agronomic Practices Towards Sustainable Management of Biotic Stresses and Improvement in Crops Productivity”, which is intended to cover the broad aspects of symbiosis in relation to agronomic practices for crop growth and productivity under biotic stresses.

Dr. Subhan Danish
Prof. Dr. Anna Gałązka
Prof. Dr. Syed Muhammad Zaka
Guest Editors

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Keywords

  • biotic stresses
  • biopesticide
  • biofungicides
  • bioinsecticides
  • biofertilizers
  • crops productivity
  • symbiosis
  • biocontrol
  • diseases
  • insects
  • pathogens
  • viruses
  • mulching
  • tillage
  • micronutrients
  • macronutrients

Published Papers (1 paper)

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Review

31 pages, 2968 KiB  
Review
Citrus Canker—Distribution, Taxonomy, Epidemiology, Disease Cycle, Pathogen Biology, Detection, and Management: A Critical Review and Future Research Agenda
by Syed Atif Hasan Naqvi, Jie Wang, Muhammad Tariq Malik, Ummad-Ud-Din Umar, Ateeq-Ur-Rehman, Ammarah Hasnain, Muhammad Aamir Sohail, Muhammad Taimoor Shakeel, Muhammad Nauman, Hafeez-ur-Rehman, Muhammad Zeeshan Hassan, Maheen Fatima and Rahul Datta
Agronomy 2022, 12(5), 1075; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy12051075 - 29 Apr 2022
Cited by 14 | Viewed by 11056
Abstract
Xanthomonas citri subsp. citri, a causative agent of the citrus canker (CC) disease, belongs to one of the essential groups of the bacterial phytopathogen family, Xanthomonadaceae. It has been a potential threat to the globally significant citrus fruit crop, which [...] Read more.
Xanthomonas citri subsp. citri, a causative agent of the citrus canker (CC) disease, belongs to one of the essential groups of the bacterial phytopathogen family, Xanthomonadaceae. It has been a potential threat to the globally significant citrus fruit crop, which has remained under investigation for disease management and epidemiology since the 1980s. In Pakistan, the average yield of citrus is 11 t/ha, which is lower than other countries, including China, Brazil, and India, having average productions of 27, 26, and 22 tons/hectare, respectively. Citrus canker is one of the most devastating diseases, posing a significant threat to crop yield and fruit quality. To date, five distinct types (or forms) of the citrus canker have been recognized; the Asiatic (Canker A) form is most destructive and affects most citrus cultivars. Severe infection outcomes include dieback, defoliation, severely blemished fruit, premature fruit drop, and reduced fruit quality. The infection increases under humid, warm, cloudy climate, wind, and heavy rainfall. The analysis of plasmid and chromosomal DNA of X. citri subsp. citri depicted an evolutionary relationship among pathovars of Xanthomonas. The extensive study on the genome of X. citri subsp. citri has contributed to the current knowledge of plant host recognition of pathogens, host specificities, dissemination, and propagation. Regulatory programs, i.e., quarantine or exclusion, continued to be practiced, prohibiting infected citrus plant material into the existing stock. Other measures include removal of inoculums sources, resistant hosts, protective copper-containing sprays, and windbreak systems. In this review, we explored the latest trends in the areas of epidemiology, pathogenome, detection, host–pathogen interaction, biofilm formation, and management of X. citri subsp. citri. Full article
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