Trehalose is emerging as a versatile agricultural ingredient with applications across plant biostimulants, crop-stress management, seed technology and biological agricultural formulations.
A growing body of research has investigated externally applied trehalose under drought, salinity, heat, cold and other environmental stresses. Across this evidence base, trehalose has been associated with improvements in plant water status, photosynthesis, antioxidant defence, root and shoot growth and, in some studies, crop productivity.[1]
Its agricultural value also extends beyond direct treatment of plants.
Trehalose can help protect sensitive microorganisms during drying, storage and application, creating important opportunities in biofertilisers, microbial inoculants, seed coatings and other biological agricultural technologies.[2,3]
This is now moving beyond academic research. NAGASE actively develops trehalose for agricultural applications including plant biostimulants, seed coatings and microbial formulations.[4]
For growers, agricultural formulators, seed businesses, biotechnology companies and crop researchers, trehalose offers a growing range of opportunities across both direct crop treatment and biological formulation.
Why Is Trehalose Interesting in Agriculture?
Trehalose is a naturally occurring non-reducing disaccharide composed of two glucose molecules.
In nature, it is closely associated with the ability of many organisms to withstand environmental stress. Its interaction with water allows it to help stabilise proteins, cellular membranes and other biological structures during dehydration and related stresses.
In plants, however, the effects appear to extend well beyond simple physical protection.
Research indicates that externally applied trehalose can influence several interconnected aspects of plant stress tolerance, including:
- plant water status
- osmotic adjustment
- photosynthesis
- chlorophyll retention
- antioxidant defence
- reactive oxygen species
- membrane stability
- protective osmolytes
- mineral-ion balance
- plant stress signalling
- root and shoot development
- crop productivity.[1]
This combination of physical protection and biological response is what makes trehalose particularly interesting for modern plant-biostimulant and crop-resilience technologies.
What Does the Overall Research Show?
The strongest overall assessment of externally applied trehalose was published in 2026.[1]
Researchers conducted a systematic review and meta-analysis beginning with 659 records and identified 52 eligible studies published between 2005 and 2024.
The evidence included:
- 20 studies involving drought or water deficit
- 15 involving salinity
- 9 involving cold stress
- 5 involving heat stress
- additional studies involving heavy-metal stress.[1]
Trehalose was delivered through several routes:
- foliar application in 34 studies
- root, soil or nutrient-solution treatment in 15 studies
- seed priming in 3 studies.[1]
Across the evidence base, trehalose produced beneficial overall effects on numerous measures of plant performance.
These included improvements in:
- chlorophyll and photosynthetic pigments
- photosystem efficiency
- plant water status
- gas exchange
- antioxidant activity
- root development
- shoot development
- leaf area
- grain yield.[1]
Trehalose treatment was also associated with lower levels of several important indicators of cellular damage, including hydrogen peroxide accumulation, lipid peroxidation and membrane permeability.[1]
Taken together, these findings provide strong evidence that externally applied trehalose can help plants maintain normal function when exposed to environmental stress.
Trehalose for Drought & Water Stress
Drought is currently the largest single research area for agricultural trehalose.
When water availability falls, plants can experience reduced photosynthesis, loss of cellular hydration, slower growth, membrane damage and increased oxidative stress.
Trehalose has been shown to influence several of these processes simultaneously.
A field study in maize used 30 mM foliar trehalose under restricted irrigation. Treated plants showed improvements in biomass, photosynthetic performance, plant-water relations and antioxidant defence compared with untreated water-stressed plants.[5]
The much broader 2026 meta-analysis subsequently confirmed beneficial overall effects on plant water status, photosynthesis, antioxidant systems and growth under water-deficit conditions.[1]
This makes drought and water stress one of the strongest opportunities for developing trehalose-based agricultural products.
Read: Trehalose for Drought & Water Stress in Plants →
Trehalose for Salinity Stress
Salinity is another major area of trehalose research.
Salt stress can make water harder for roots to absorb, disrupt sodium and potassium balance, interfere with photosynthesis and increase oxidative damage.
In tomato plants exposed to salinity, foliar trehalose improved growth, photosynthetic performance and mineral-ion balance.[6]
Related research found effects on:
- antioxidant enzymes
- reactive oxygen species
- photosynthesis
- osmolyte accumulation
- potassium-to-sodium balance
- endogenous trehalose metabolism.[7]
Across the wider evidence base, trehalose has been associated with improved water status, root and shoot development, photosynthetic function and antioxidant defence under saline conditions.[1]
For businesses developing crop-stress products for saline soils or irrigation systems, this is one of the most established areas of agricultural trehalose research.
Read: Trehalose and Salinity Stress in Crops →
Trehalose for Heat & Cold Stress
Temperature extremes create another important agricultural challenge.
Heat can damage proteins, chloroplasts and membranes while increasing water loss and oxidative stress.
Cold can restrict metabolism, reduce membrane fluidity, damage photosynthetic systems and cause chilling injury.
A major review of trehalose in plant temperature stress concluded that externally applied trehalose can influence physiological, metabolic and molecular responses to both heat and cold.[8]
Research has identified effects on:
- membrane protection
- photosystem performance
- antioxidant defence
- osmotic regulation
- energy metabolism
- plant stress signalling.[8]
The 2026 meta-analysis also found positive overall effects across several measures of plant performance under temperature stress.[1]
This makes trehalose increasingly relevant to greenhouse crops, nurseries, horticulture and other systems vulnerable to temperature fluctuations.
Read: Trehalose for Heat & Cold Stress in Plants →
Protecting Photosynthesis
One of the strongest themes running throughout the agricultural trehalose literature is the protection of photosynthesis.
Environmental stresses can reduce chlorophyll, disrupt photosystem II, alter stomatal behaviour and restrict carbon assimilation.
Across the studies included in the 2026 meta-analysis, externally applied trehalose increased:
- total chlorophyll
- chlorophyll A
- chlorophyll B
- carotenoids
- photosystem II efficiency.[1]
Trehalose also produced beneficial overall effects on gas exchange and plant water status.[1]
This is particularly important because photosynthesis connects cellular stress protection with agricultural productivity.
A crop that remains photosynthetically active under stressful conditions has a greater opportunity to maintain growth, flowering, grain filling and yield.
Strengthening Antioxidant Defence
Environmental stress frequently causes excessive production of reactive oxygen species.
At high concentrations, these molecules can damage:
- cellular membranes
- proteins
- enzymes
- chloroplasts
- other cellular structures.
Plants use antioxidant enzymes to control this damage.
Across the 2026 evidence base, trehalose treatment increased the activity of important antioxidant systems including:
- superoxide dismutase
- catalase
- ascorbate peroxidase.[1]
At the same time, treatment reduced hydrogen peroxide accumulation, lipid peroxidation and membrane permeability.[1]
This antioxidant response appears repeatedly across drought, salinity, heat and cold research and is one of the strongest recurring mechanisms associated with trehalose.
Supporting Plant Water Status
Water management is central to both drought and salinity tolerance.
Under drought, available water becomes scarce.
Under salinity, dissolved salts make existing soil water more difficult for roots to extract.
Research shows that trehalose can help plants maintain relative water content and water-use efficiency under stress.[1]
It can also influence the accumulation of compatible solutes and other compounds involved in osmotic adjustment.
For crop-stress technologies, this creates an important opportunity: supporting the plant's own ability to remain hydrated and functional during periods when water becomes more difficult to obtain.
Protecting Cellular Membranes
Cell membranes are highly vulnerable to environmental stress.
Drought, salinity and temperature extremes can all disturb membrane structure, while oxidative stress can cause additional lipid damage.
Trehalose is well known for its ability to interact with water and biological membranes.
Across agricultural studies, trehalose treatment has repeatedly been associated with:
- reduced membrane permeability
- lower lipid peroxidation
- better cellular integrity.[1]
Maintaining healthy membranes is important because normal cellular organisation, nutrient movement and metabolism all depend on them.
Can Trehalose Support Growth and Crop Productivity?
The purpose of plant-stress management is ultimately to protect crop performance.
The 2026 meta-analysis found positive overall effects of externally applied trehalose on:
- shoot length
- shoot fresh weight
- shoot dry weight
- root length
- root fresh weight
- plant height
- leaf area
- tiller number
- leaf number
- grain yield.[1]
This does not mean every crop will respond identically, but it demonstrates that the physiological effects observed in the laboratory can translate into meaningful agricultural outcomes.
Crop-specific research provides additional examples.
A 2023 study in tomato and aubergine examined short-styled flowers, which can interfere with successful pollination.
Trehalose treatment increased style length and reduced the occurrence of short-styled flowers under the conditions tested.[9]
This adds another dimension to the agricultural research: trehalose may influence not only stress physiology but also specific developmental processes relevant to crop productivity.
Trehalose in Biofertilisers & Microbial Inoculants
One of the most commercially important applications of trehalose involves protecting beneficial microorganisms rather than treating the crop directly.
Modern agricultural products increasingly use living bacteria and fungi to support:
- biological nitrogen fixation
- nutrient mobilisation
- root colonisation
- plant-growth promotion
- crop establishment.
These microorganisms need to survive manufacture, drying, storage, transportation and application before they can deliver any benefit.
Trehalose is particularly valuable because it can help stabilise cells, membranes and proteins during dehydration.
Researchers developing a biological seed coating for common bean incorporated beneficial rhizobacteria into a silk-and-trehalose layer surrounded by a water-retaining biopolymer.[2]
The system successfully delivered bacteria to emerging roots and supported nodulation under semi-arid conditions.
More recently, researchers developed a dry biofertiliser containing Azospirillum brasilense in a polymer-and-trehalose formulation.[3]
The freeze-dried product maintained approximately 10⁸ viable cells per gram for more than 180 days and produced greater bacterial recovery from treated maize seed than the conventional liquid inoculant used for comparison.[3]
For agricultural biotechnology companies, this represents a very different but potentially high-value use of trehalose: as a functional ingredient within biological agricultural products.
Read: Trehalose in Biofertilisers & Microbial Inoculants →
Trehalose in Seed Treatments & Coatings
Seed technology brings several agricultural applications of trehalose together.
Trehalose has been investigated directly as a seed-priming treatment and as a stabilising ingredient within more advanced biological seed coatings.[1,2]
Modern coatings can combine:
- trehalose
- beneficial microorganisms
- proteins
- polymers
- water-retaining materials
- other functional agricultural ingredients.
This creates the possibility of turning each seed into a highly targeted biological delivery system.
Trehalose can help protect microorganisms while the coated seed is dried, stored and transported, allowing viable biological material to remain close to the emerging root when germination begins.
This is particularly attractive for seed companies, inoculant manufacturers and agricultural biotechnology businesses.
Read: Trehalose in Seed Treatments & Coatings →
Trehalose in Postharvest Horticulture
The potential agricultural role of trehalose continues after harvest.
Research has investigated trehalose treatment in fruit and horticultural produce with the aim of maintaining storage quality.
In Golden Delicious apples, treatment with 1.5 g/L trehalose reduced weight loss and respiration while helping maintain soluble solids and flesh firmness during storage.[10]
Other studies have investigated trehalose in crops including:
- guava
- peaches
- litchi
- cherry tomatoes
- peppers
- grapes.
Research outcomes include improved chilling tolerance, reduced browning, lower moisture loss, stronger antioxidant activity and better storage quality.
This creates potential opportunities for growers, packhouses, cold-storage operators and fresh-produce businesses.
Read: Trehalose in Postharvest Fruit & Horticulture →
How Is Trehalose Applied?
Agricultural research has used several application routes.
Foliar Application
Foliar spraying is currently the most extensively studied method.
Of the 52 studies included in the 2026 meta-analysis, 34 used foliar application.[1]
This approach has been widely studied under drought, salinity and temperature stress.
Root Application
Trehalose can also be supplied through roots, irrigation water or nutrient solutions.
Fifteen studies in the meta-analysis used root-based approaches.[1]
Seed Treatment
Seeds can be primed or coated with trehalose before sowing.
Three conventional seed-priming studies were included in the meta-analysis, while separate research has developed more advanced trehalose-containing seed coatings.[1,2]
These different delivery methods create opportunities for product development across foliar biostimulants, root-zone products, treated seed and biological formulations.
Developing the Right Trehalose Treatment
There is no single concentration or application method suited to every crop.
Across the studies included in the 2026 meta-analysis, trehalose concentrations ranged from approximately 0.29 to 150 mM.[1]
Agricultural performance can depend on:
- crop species
- cultivar
- growth stage
- environmental stress
- application route
- concentration
- timing
- frequency
- formulation.
For agricultural developers, this is not a disadvantage.
It creates scope to optimise trehalose formulations around specific crops, stresses and production systems.
Published studies provide a substantial foundation from which commercial crop trials can be developed.
How Does Trehalose Work?
The research indicates that several mechanisms operate together.
Osmotic Regulation
Trehalose can support plant water status and contribute to the regulation of protective solutes during water and salt stress.[1]
Protein and Membrane Protection
Trehalose interacts strongly with water and can help stabilise proteins, lipid membranes and other biological structures during dehydration.
Antioxidant Defence
Treatment can increase antioxidant activity and reduce damaging reactive oxygen species.[1]
Photosynthetic Protection
Trehalose has repeatedly been associated with improved chlorophyll retention, photosystem performance and gas exchange under stress.[1,6]
Ion Homeostasis
Under salinity, trehalose can help plants maintain a more favourable balance between potassium and sodium.[6,7]
Plant Signalling
Research shows that externally applied trehalose can also influence endogenous carbohydrate metabolism and wider stress-response signalling.[7]
The significance is that trehalose does not appear to act through one isolated process.
Its value lies in the way several protective and regulatory effects can operate together.
Trehalose and Trehalose-6-Phosphate
Trehalose should not be confused with trehalose-6-phosphate, or T6P.
T6P is an intermediate in the plant's own trehalose-production pathway and an important signalling molecule involved in carbon allocation, sugar metabolism, growth and productivity.
T6P has become a major agricultural research field in its own right.
Trehalose and T6P are related, but they are different molecules and are used differently in agricultural research.
For that reason, evidence from T6P manipulation should not be treated as evidence from externally applied trehalose.
For a detailed explanation, see Trehalose vs Trehalose-6-Phosphate (T6P) in Plants →.
Trehalose Is Already Being Developed for Agricultural Use
Agricultural trehalose has progressed well beyond isolated laboratory experiments.
NAGASE identifies trehalose for applications including:
- plant biostimulants
- seed coatings
- microbial inoculants
- biological formulations.[4]
Nagase Viita is also actively developing direct and indirect agricultural applications internationally.
In 2026, a trehalose-based agricultural support project was selected for a Japan International Cooperation Agency programme investigating trehalose in Pakistan both as a direct plant-biostimulant material and as a stabilising ingredient for biological agricultural formulations.[11]
This is significant because it reflects the two principal commercial directions now emerging from the research:
- trehalose applied directly to crops to support stress tolerance
- trehalose incorporated into products to protect sensitive biological ingredients.
NAGASE agricultural information →
The Commercial Opportunity
The agricultural evidence surrounding trehalose has developed substantially.
It now includes:
- more than 50 controlled studies included in meta-analysis
- field trials
- multiple major crop species
- drought research
- salinity research
- heat and cold studies
- seed treatments
- biological seed coatings
- postharvest horticulture
- microbial biofertilisers
- dedicated manufacturer development programmes.[1–4,11]
This creates opportunities across several agricultural markets.
Potential users include:
- growers
- agronomists
- plant-biostimulant manufacturers
- seed companies
- biofertiliser businesses
- microbial inoculant manufacturers
- agricultural formulators
- agricultural biotechnology companies
- fresh-produce businesses
- universities and crop researchers.
The strongest evidence currently centres on drought and salinity, while temperature stress, seed technologies, postharvest applications and microbial formulations provide additional routes for development.
Together, these areas establish trehalose as a versatile ingredient for modern agricultural and biological technologies.
Developing Agricultural Applications with Trehalose UK
Trehalose UK is expanding its support for agriculture, plant science and biological formulation.
We welcome enquiries from businesses and researchers investigating trehalose for:
- plant biostimulants
- drought and water stress
- saline growing conditions
- heat and cold stress
- seed treatments
- microbial inoculants
- biofertilisers
- biological formulations
- postharvest horticulture
- agricultural research and development.
We can support projects from initial trials and development quantities through to larger commercial supply.
For substantial requirements, see Bulk TREHA® Supply →.
For an overview of our agricultural offering, see Trehalose for Agriculture & Plant Science →.
To discuss an agricultural project or supply requirement, contact Trehalose UK →.
Further Reading
Trehalose for Drought & Water Stress in Plants →
Trehalose and Salinity Stress in Crops →
Trehalose for Heat & Cold Stress in Plants →
Trehalose in Seed Treatments & Coatings →
Trehalose in Biofertilisers & Microbial Inoculants →
Trehalose in Postharvest Fruit & Horticulture →
Agriculture & Plant Science Guides →
References & Further Reading
[1] Adrielle Cristine Domingos Adão, Antônio Rodrigues da Cunha Neto, Marina Wolowski, and Thiago Corrêa de Souza. 2026. “Exogenous Trehalose Mitigates Abiotic Stress in Plants by Improving Morphophysiology: A Meta-Analysis.” Journal of Crop Science and Biotechnology 29: 547–565. DOI: 10.1007/s12892-026-00355-1.
[2] Augustine T. Zvinavashe, Julie Laurent, Manal Mhada, et al. 2021. “Programmable Design of Seed Coating Function Induces Water-Stress Tolerance in Semi-Arid Regions.” Nature Food 2: 485–493. DOI: 10.1038/s43016-021-00315-8.
[3] Bruna Lendzion Alves, Lucas S. Ribeiro, Mariangela Hungria, and Caue Ribeiro. 2026. “Dry Biofertilizer Development Containing Azospirillum brasilense: A Protective PGCit-Based Strategy for Seed Inoculation.” ACS Agricultural Science & Technology 6, no. 2: 322–331. DOI: 10.1021/acsagscitech.5c00714.
[4] NAGASE Europe. “Trehalose for Agriculture.” Manufacturer information covering trehalose for plant biostimulants, seed coatings, microbial inoculants and biological formulations.
NAGASE agricultural information →
[5] Qasim Ali and Muhammad Ashraf. 2011. “Induction of Drought Tolerance in Maize (Zea mays L.) due to Exogenous Application of Trehalose: Growth, Photosynthesis, Water Relations and Oxidative Defence Mechanism.” Journal of Agronomy and Crop Science 197, no. 4: 258–271. DOI: 10.1111/j.1439-037X.2010.00463.x.
[6] Yan Yang, Jianming Xie, Jing Li, et al. 2022. “Trehalose Alleviates Salt Tolerance by Improving Photosynthetic Performance and Maintaining Mineral Ion Homeostasis in Tomato Plants.” Frontiers in Plant Science 13: 974507. DOI: 10.3389/fpls.2022.974507.
[7] Yan Yang, Yandong Yao, Jing Li, et al. 2022. “Trehalose Alleviated Salt Stress in Tomato by Regulating ROS Metabolism, Photosynthesis, Osmolyte Synthesis, and Trehalose Metabolic Pathways.” Frontiers in Plant Science 13: 772948. DOI: 10.3389/fpls.2022.772948.
[8] Ali Raza et al. 2024. “Trehalose: A Sugar Molecule Involved in Temperature Stress Management in Plants.” The Crop Journal 12, no. 1: 1–16. DOI: 10.1016/j.cj.2023.09.010.
[9] Izumi C. Mori et al. 2023. “Application of Trehalose Mitigates Short-Styled Flowers in Solanaceous Crops.” Journal of Agricultural and Food Chemistry 71, no. 14: 5476–5482. DOI: 10.1021/acs.jafc.2c08479.
[10] Canying Li, Lei Sun, Jie Zhu, Yuan Cheng, Rui Huang, Yiting Fan, Mi Guo, and Yonghong Ge. 2022. “Trehalose Maintains the Quality of Malus domestica by Mediating Sucrose and Respiratory Metabolism.” Scientia Horticulturae 295: 110857. DOI: 10.1016/j.scienta.2021.110857.
[11] Nagase Viita Co., Ltd. 2026. “Trehalose-Based Agricultural Support Project Selected for JICA Biz Program (FY2025).” Describes trehalose development as both a direct plant-biostimulant material and a stabilising ingredient for biological agricultural formulations.
Read the Nagase announcement →