What does this research mean for the field?

Glycine betaine partially alleviates the negative effects of high salinity stress in Passiflora edulis seedlings by improving plant water status and modifying primary metabolism. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the physiological and metabolomic responses of yellow passion fruit (Passiflora edulis f. flavicarpa) to salinity stress and exogenous glycine betaine application.

August 27, 2026PlantsOpen Access

Glycine Betaine-Induced Responses Under Saline Stress in Passiflora edulis f. flavicarpa

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Authors

LOLeonardo de Almeida OliveiraTokyo University of Agriculture NHNasratullah HabibiTokyo University of Agriculture NSNaveedullah SediquiTokyo University of Agriculture

Discussion

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Implication

Factorial experiment reveals exogenous glycine betaine improves water status and osmoprotectant levels in yellow passion fruit under salinity, indicating enhanced salt tolerance.

Key Points

To evaluate the physiological and metabolomic responses of yellow passion fruit (Passiflora edulis f. flavicarpa) to salinity stress and exogenous glycine betaine application.
Evaluated passion fruit seedlings using a completely randomized 2 × 3 factorial design with two glycine betaine treatments (0 and 100 mM) and three salinity levels (0, 1.6, and 3.2 dS m−1) across five biological replicates per combination.
Measured physiological parameters (leaf water potential, SPAD, detached-leaf water loss) and profiled primary metabolites using gas chromatography–mass spectrometry (GC–MS).
At 3.2 dS m−1 salinity, untreated plants exhibited the most negative leaf water potential, whereas glycine betaine treatment maintained significantly less negative leaf water potential values.
Metabolomic profiling revealed that glycine betaine under high salinity elevated levels of sugars (glucose, sucrose), amino acids (glycine, proline), and organic acids (citric, malic, and succinic acid), yielding a distinct PCA profile.

Cite This Study

Oliveira et al. (2026) studied this question.

synapsesocial.com/papers/6a8fea0110c91c1e92621e7a https://doi.org/10.3390/plants15172592

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Implication

Factorial experiment reveals exogenous glycine betaine improves water status and osmoprotectant levels in yellow passion fruit under salinity, indicating enhanced salt tolerance.

Glycine Betaine-Induced Responses Under Saline Stress in Passiflora edulis f. flavicarpa

Discussion

Member takes

Implication

Key Points

Cite This Study

Glycine Betaine-Induced Responses Under Saline Stress in Passiflora edulis f. flavicarpa

Discussion

Member takes

Implication

Key Points

Cite This Study

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