Showing posts with label Phytopathogenic fungi. Show all posts
Showing posts with label Phytopathogenic fungi. Show all posts

Major Cucumber Diseases and Their Pathogens in Azerbaijan | InformativeBD

The main diseases of cucumber (Cucumis sativus L.) grown in the Republic of Azerbaijan and the species composition of pathogens of these diseases

K. F. Bakhshaliyeva, A. Kh. Rajabli,  A. G. Eyvazov, G. A. Gasimova, and P. Z. Muradov, from the institute of Azerbaijan. wrote a Research article about, Major Cucumber Diseases and Their Pathogens in Azerbaijan. Entitled, The main diseases of cucumber (Cucumis sativus L.) grown in the Republic of Azerbaijan and the species composition of pathogens of these diseases. This research paper published by the International Journal of Biosciences | IJB. an open access scholarly research journal Biosciences. under the affiliation of the International Network For Natural Sciences| INNSpub. an open access multidisciplinary research journal publisher.

Abstract

Cucumis sativus L. plant cultivated in open and covered conditions in the Republic of Azerbaijan, was studied for phytopathogenic fungal biota. It has been determined that a total of 15 fungal species are involved in the formation of the phytopathogenic mycobiota of cucumber plants. Although more than half of the recorded fungi showed phytopathogenic properties in both conditions, overall, covered conditions were more favorable for the development of fungal. The reason for this is that the parameters that are important for plants in covered conditions are favorable for fungi, and these parameters are relatively more stable in covered conditions. The species involved in the formation of the phytopathogenic mycobiota of cucumber plants had a certain specificity in terms of the prevalence of the diseases they caused, the forms of observation, and the effect of the effects. Although some of them cause diseases with the same name and have similar symptoms, it has been determined that each disease also has symptoms that arise from the biological characteristics of the fungus itself.

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Read more : African Swine Fever Surveillance in Cagayan Abattoirs, Philippines | InformativeBD 

Introduction 

In modern times, providing people with plant-based food products is one of the important issues that any country plans to solve. The importance of this issue is necessitated by the increasing world population within the fixed territory of the Earth, the increasing burden of anthropogenic impact on the environment the decrease in useful land areas used by people for various purposes, the expansion of urbanization, and other processes. Thus, according to UNO forecasts, the world population is expected to reach 10.3 billion in 2084, which allows us to note a 1.5-fold increase (Choręziak et al., 2025; Australian Government, 2024) in population compared to 2024. This, in turn, will inevitably create additional problems in meeting the growing population's demand for various substances, primarily food. Therefore, conducting research aimed at solving these problems is currently one of the most relevant.

It should be noted that, against the background of the above, meeting people's needs for nutrients, especially those of plant origin with relatively high biological value, is one of the tasks that is in the focus of special attention (Choręziak et al., 2025). Research conducted to address these issues mainly covers two areas. The first direction is that it includes increasing the productivity of plants used for this purpose, eliminating conditions that cause crop losses, implementing cultivation with more efficient technologies, and so on. The second direction involves the creation of new varieties that are productive, disease-resistant, capable of growing under stressful conditions, and have other characteristics. Sometimes these two directions are carried out in a mixed manner.

Regardless of this, the purpose of conducted research in both directions is to improve both the quantity and quality of the products produced.

As in a number of countries around the world, the agricultural sector plays an important role in the economy of the Republic of Azerbaijan, so cereals, vegetables, melons, fruits, etc. are cultivated throughout the country, and hundreds of thousands of tons of crops are harvested every year (Babayeva et al., 2025). For example, about 50% of the country's 86.6 thousand km2 area is occupied by usable land in which, according to data from 2024, 1,685,734.0 tons of wheat, 22,206.6 tons of legumes, 490,558.2 tons of melons, 1,838,903.3 tons of vegetables, and 1,317,868.2 tons of fruit were grown (State Statistical Committee of Azerbaijan, 2025). Despite this, the volume of products produced does not fully meet the needs of the country's population even today, and therefore the issue of increasing productivity and reducing crop losses is of greater importance for the Republic of Azerbaijan.

Vegetables are among the plants widely cultivated in the Republic of Azerbaijan, as the cultivation of vegetable plants such as tomatoes, cucumbers, eggplants, etc. is found in all regions of the country (Huseynov et al., 2020). Sometimes the expected yield cannot be obtained from these plants, and one of the reasons for this is the result of diseases caused by various organisms, primarily fungi (Bakshaliyeva et al., 2023; Muradov et al., 2019). To prevent this, it is important to determine the species composition of these pathogens.

Therefore, the purpose of the presented work is to determine the species composition of diseases and their causative agents observed in cucumber plants cultivated under covered conditions in Azerbaijan.

Reference

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Babayeva LO, Jafarova KS, Ismayilova ES. 2025. The agricultural sector as a priority area of azerbaijan’s economic development. Economy and Business: Theory and Practice 4, 37–42. https://doi.org/10.24412/2411-0450-2025-4-37-42

Bakshaliyeva KF, Radjabli AX, Aliyeva GR, Arabova GQ, Muradov PZ. 2023. Characterization of the mycobiota of some cultivated plants in Azerbaijan according to species composition and diseases caused by pathogenic species. Advanced Studies in Biology 15(1), 163–171. https://doi.org/10.12988/asb.2023.91753

Balaji A. 2018. Handbook of plant disease identification and management. CRC Press, 620 p.

Chauhan A, Jindal T. 2020. Microbiological methods for environment, food and pharmaceutical analysis (1st ed.). Springer, 521 p.

Choręziak A, Rosiejka D, Michałowska J, Bogdański P. 2025. Nutritional quality, safety and environmental benefits of alternative protein sources-An overview. Nutrients 17(7), 1148. https://doi.org/10.3390/nu17071148

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Article source :  The main diseases of cucumber (Cucumis sativus L.) grown in the Republic of Azerbaijan and the species composition of pathogens of these diseases

 

Fungal Pathogens in Early Maturing Mango Varieties: Senegal Study | InformativeBD

Inventory of fungal pathogens of early maturing Mango varieties in the Kounkane area, Southeast of Senegal

Cheikh Dieye, Papa M. Diedhiou, Nalla Mbaye, and Yaya Diallo, from the different institute of the Sénégal. wrote a research article about, Fungal Pathogens in Early Maturing Mango Varieties: Senegal Study. entitled, Inventory of fungal pathogens of early maturing Mango varieties in the Kounkane area, Southeast of Senegal. This research paper published by the International journal of Microbiology and Mycology (IJMM). an open access scholarly research journal on Microbiology. under the affiliation of the International Network For Natural Sciences | NNSpub. an open access multidisciplinary research journal publisher.

Abstract

In Senegal, mango production, in spite of a positive record performance in recent years, is confronted with numerous diseases. The rainfall richer south and south eastern parts of the country, stand among the main contributors of mango production. Fruits are known to by infested and rotten almost totally when they mature in the rainy season. However, a lot of mango varieties mature before onset of the moist rainy season. The present study was therefore undertaken to make an inventory of the causing agents of pre- and post-harvest diseases of mangoes maturing before the rain starts. Samples were taken from the fields and brought to the laboratory for analysis. The results showed that Colletotrichum spp., Pestalotia sp., Lasiodiplodia sp., Fusarium spp., Curvularia sp., Alternaria sp. and non- sporulating fungi were associated with diseased organs in tree canopy. Fungal diversity was higher for orchards harboring trees over 15 years of age. For the mangoes, the disease incidence reached 13% after harvest. This infestation was due to by 50% to non-sporulating fungi, 31% to Colletotrichum spp., 13% to Fusarium spp. and 6% to Lasiodiplodia sp. These results show the pathogens are present in the fields and that their dynamic depend on the climatic conditions.

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Read more :  Streptomyces sp. 3400 Antifungal Power Against Citrus Post-Harvest Spoilage | InformativeBD

Introduction

Mango (Mangifera indica L.) is considered one of the most important fruit crops in the tropics. Within the fruit and vegetable sub-group, the mango industry is a promising sector for economic growth. Global mango production is estimated at over 43 million tons (Faostat, 2015). Mango is grown in most West African countries, with an estimated production area of 540,000km², stretching from Senegal throughout to eastern Nigeria according to the Minister of Commerce in 2016 (Ministère du commerce, 2016). Several countries in the subregion, including Senegal, are currently spearheading their export activities (CARE, 2009). In Senegal mango production represents 60% of the country's fruit production, with an estimated annual production of 150,000 tons harvested from a land area of about 41,000 ha (Diedhiou et al., 2014).

Inventory of fungal pathogens of early maturing Mango varieties in the Kounkane area, Southeast of Senegal

The mango sector is the most dynamic in fruit exports in Senegal (Diouf, 2016). Mango exports have increased from 300 tons in 1998 (Rey, 2011) to 24500 tons in 2021 (Dieye and al., 2021). This performance is due to the modernization of traditional orchards and the creation of new plantations for export. The mango producing orchards are located in the regions of Dakar, Thies, Saint-Louis, Fatick, Kolda, Ziguinchor and Sedhiou (Diedhiou and al., 2014). The soil and climatic conditions and land holdings in the country offer great potential for expanding mango production (USAID-PCE, 2006). The improvement of the mango sector and the implementation of improved technologies along the value chain, offer labor and employment opportunities especially to women and rural youth.

Inventory of fungal pathogens of early maturing Mango varieties in the Kounkane area, Southeast of Senegal

However, mango production, despite a positive record in recent years, is still affected by numerous constraints, including phytosanitary problems. The mango tree is susceptible to host a number of diseases agents at all stages of its development from planting to harvest (Alemu and al., 2014). In the field, mango is most often the host of several pathogens especially fungi that significantly down turn production potential (Khanzada et al., 2004). Diverse fungi cause post-harvest rot of mangoes, with the identity and the incidence of species highly depending on the climatic conditions (Diedhiou et al., 2007). The post-harvest mango rotting can affect up to 100% of mangoes produced during the rainy season in southern Senegal in the absence of adequate control (Diedhiou and al., 2014). Anthracnose due to Colletotrichum gloeosporioides is the almost exclusive causing agents under those conditions while disease incidence is low and results from a diversity of fungi in the Ziguinchor area. Different works have reported various fungi on mango namely Lasiodiplodia theobromae, Colletotrichum spp., Curvularia sp., Pestalotia mangiferae., Alternaria sp. and Fusarium spp. among others (Johnson and al., 1992; Sharma, 1993; Ploetz and al., 1996; Al-Adawi and al., 2003; Dieye and al., 2021). It was therefore important for the mango industry in Senegal to make an inventory of causing agents for mango diseases. This study was conducted with the objective of identifying the fungi responsible for mango diseases in the Kounkane area in southern Senegal during the dry season.

Reference

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Dieye C, Houmairi H, Diedhiou PM, Gaboune F, Mbaye N, Diallo Y, Bencharki B. 2021. “Characterization of fusarium species associated with mango malformation disease in southern senegal.” international journal of advanced research (IJAR) 9(3), 322-331.

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Source : Inventory of fungal pathogens of early maturing Mango varieties in the Kounkane area, Southeast of Senegal