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The global food production and its quality face a lot of challenges, which already decreased the availability of these foods. These challenges were mainly linked to global climate changes and their ramifications, which are expressed as environmental stresses like drought, flooding, low or high heat stress. The new pandemics like COVID-19 also represent a new challenge for the entire universe. Although, there are increasing concerns about combined stress on cultivated plants, still more studies are needed to cover all botanical issues including physiological, morphological, biochemical and histological traits. Further studies are required to focus on different combined or multiple stresses in particular the individual stress is rare in the nature. This work is an invitation for publication reviews, comments, notes and original articles about the anatomical changes in stressful plants particularly under combined stress. The EBSS journal also welcomes the serious and promising studies, which will handle the environmental issues related to stress in the era of COVID-19.

The world’s burgeoning population faces a great challenge concerning food security, which could be achieved through different sustainable agricultural practices. Trichoderma, as a ubiquitous fungus, is one of the most promising microorganisms that might offer several avenues for sustainable agriculture. Trichoderma spp. may guarantee a better solution for conventional problems in agriculture through several approaches including the protection of cultivated plants from undesirable abiotic and biotic conditions under changing environments and promoting their growth in poor or limited soil nutrients. The promising role of Trichoderma for vegetable production as a biocontrol and biofertilizers has been confirmed but this role of Trichoderma as a plant pathogen still needs more studies. Trichoderma could inhibit or suppress the growth of soil phytopathogens, promoting plant growth and soil health, through activation of many mechanisms including synthesis of antibiotics, mycoparasitism and competition for nutrients against plant deleterious microorganisms. The sustainable approaches of Trichoderma including biofortification, bio-remediation and phyto-remediation as well as exploring future research opportunities will be also handled in this work.

Greenhouse cucumber production is considered an important tool beside open field production. The production of greenhouse cucumber in developing countries particularly in arid environments might achieve as low cost structures and almost without air conditions. These conditions have increased the constrains of cucumber production to be include more stresses beside salinity, drought and heat stress. These stresses mainly include biotic stress and abiotic stresses, which cause a high loss in the cucumber productivity. Thus, this review is an attempt to highlight the problems of greenhouse cucumber production under abiotic stress (mainly drought and salinity) and different strategies, which should be adapted against these stresses. Several studies have handled the individual stresses, which impact on greenhouse cucumber production but fewer studies have investigated the multiple or combined stresses. Salinity and drought are most common abiotic stresses under changing climate, which mainly cause a trouble in cucumber antioxidant enzyme activity and generate an oxidative stress leading to a loss in cucumber productivity. New strategies should be adapted to ameliorate or mitigate the expected damage resulting from salinity and drought-stressed cucumber.

The production of protected cultivation of vegetables could be considered a sustainable solution in arid and semi-arid regions. These regions already suffer from the raising temperature due to the global warming, which represents a great challenge facing our universe nowadays. Hence, the production of vegetables under greenhouse system during the high temperatures may be considered a serious problem in these arid zones due to heat stress. In greenhouses, the production of tomato seedlings should avoid the high temperature stress in particular in arid and semi-arid in summer. The heat stress may cause a lot of troubles for the tomato seedlings in greenhouses in summer starting with the photosynthetic rate, and the metabolism processes in seedlings and in turn the growth and development of these seedlings. Although studies have recognized heat stress on tomato seedlings, research has yet to systematically investigate the effect of heat stress on tomato seedlings in greenhouse in summer under arid and semi-arid regions particularly in developed countries, which their greenhouses have not any climate controllers. Therefore, the management of tomato seedlings may need to address the production problems caused by heat stress in greenhouse conditions particularly in arid and semi-arid zones