Abstract
The application of biostimulants derived from microalgae may represent a promising strategy to enhance fruit and vegetable yields, particularly in the context of ongoing climate change. Yet, comprehensive studies assessing the efficacy of specific marine microalgae species on leafy vegetable crops are still limited. Addressing this gap, the present work aimed to evaluate the effects of two marine microalgae Nannochloropsis gaditana and Porphyridium sp. on the growth and quality of baby leaf lettuce (Lactuca sativa L.). Extracts from both species were first chemically characterized and then applied via foliar spray in aqueous solution. At the end of the cultivation cycle, both treatments significantly enhanced nitrogen assimilation and water uptake, leading to increased biomass production. Notably, plants treated with microalgae extracts exhibited higher fresh weight (+ 31%), increased leaf number and plant height. Additionally, both treatments improved nutrient use efficiency and contributed to more effective water management. Gene expression analysis further revealed that extracts from N. gaditana and Porphyridium sp. modulated the expression of genes involved in nitrogen uptake and assimilation, supporting the observed improvement in nitrogen agronomic efficiency in lettuce. Collectively, these findings support the potential of N. gaditana and Porphyridium sp. as eco-friendly biostimulants capable of enhancing the sustainability and efficiency of leafy vegetable production systems.
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Claims 6
Claim · model-written summary
Both microalgae extract treatments significantly enhanced nitrogen assimilation and water uptake in baby leaf lettuce.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- marine microalgae Nannochloropsis gaditana and Porphyridium sp.e0
- Outcome
- nitrogen assimilation and water uptakee1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of two marine microalgae Nannochloropsis gaditana and Porphyridium sp. on the growth and quality of baby leaf lettuce (Lactuca sativa L.)”
e1“both treatments significantly enhanced nitrogen assimilation and water uptake”
Claim · model-written summary
Both microalgae extract treatments led to increased biomass production in baby leaf lettuce.
- Taxon
- lettuceLactuca sativae0
- Treatment
- marine microalgae Nannochloropsis gaditana and Porphyridium sp.e0
- Outcome
- biomass productione1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of two marine microalgae Nannochloropsis gaditana and Porphyridium sp. on the growth and quality of baby leaf lettuce (Lactuca sativa L.)”
e1“leading to increased biomass production”
Claim · model-written summary
Plants treated with microalgae extracts had higher fresh weight (+31%).
- Taxon
- lettuceLactuca sativae0
- Treatment
- microalgae extractse1
- Outcome
- fresh weighte1
- Direction
- highere1
- Value
- + 31%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of two marine microalgae Nannochloropsis gaditana and Porphyridium sp. on the growth and quality of baby leaf lettuce (Lactuca sativa L.)”
e1“plants treated with microalgae extracts exhibited higher fresh weight (+ 31%)”
Claim · model-written summary
Plants treated with microalgae extracts had increased leaf number and plant height.
- Taxon
- lettuceLactuca sativae0
- Treatment
- microalgae extractse1
- Outcome
- leaf number and plant heighte1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of two marine microalgae Nannochloropsis gaditana and Porphyridium sp. on the growth and quality of baby leaf lettuce (Lactuca sativa L.)”
e1“plants treated with microalgae extracts exhibited higher fresh weight (+ 31%), increased leaf number and plant height”
Claim · model-written summary
Both treatments improved nutrient use efficiency and contributed to more effective water management.
- Taxon
- lettuceLactuca sativae0
- Treatment
- marine microalgae Nannochloropsis gaditana and Porphyridium sp.e0
- Outcome
- nutrient use efficiencye1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of two marine microalgae Nannochloropsis gaditana and Porphyridium sp. on the growth and quality of baby leaf lettuce (Lactuca sativa L.)”
e1“both treatments improved nutrient use efficiency and contributed to more effective water management”
Claim · model-written summary
Extracts from N. gaditana and Porphyridium sp. modulated the expression of genes involved in nitrogen uptake and assimilation in lettuce.
- Taxon
- lettuceLactuca sativae0
- Treatment
- extracts from N. gaditana and Porphyridium sp.e0
- Outcome
- expression of genes involved in nitrogen uptake and assimilatione0
- Direction
- modulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from N. gaditana and Porphyridium sp. modulated the expression of genes involved in nitrogen uptake and assimilation, supporting the observed improvement in nitrogen agronomic efficiency in lettuce”
The same questions in other papers
botanical · growth · Lactuca sativa (garden lettuce)Positive and negative results
113 papers in the same direction as this paper · 157 in the opposite direction
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