Pre-harvest calcium application increases biomass and delays senescence of broccoli microgreens

Kou, Liping; Yang, Tianbao; Luo, Yaguang; Liu, Xianjin; Huang, Luhong; Codling, Eton E.

doi:10.1016/j.postharvbio.2013.08.004

Cited by 74 publications

(66 citation statements)

References 53 publications

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“…Decreased floral diameter towards senescence is attributed to the loss of tepal turgidity which makes the cells flaccid. Water is required for cell expansion which is an important criterion for flower opening and maintaining the shape of flowers (Ahmad et al 2013;Kou et al 2014). Flowers maintained decreased fresh and dry mass towards senescence to reallocate the nutrients back to the plant for economic benefits (Dar et al 2014b(Dar et al , 2015.…”

Section: Discussionmentioning

confidence: 99%

“…To prevent plants from this damage, plant cells employ various scavenging enzymes like SOD, CAT and APX by activating specific signaling pathways (Kou et al 2014). In our study, SOD activity has been shown to increase as the flower opens and thereafter a significant decrease was registered towards senescence with the least activity in the complete senescent stage.…”

Section: Discussionmentioning

confidence: 99%

“…Oxidative stress arises because of the accumulation of ROS such as O 2 -, H 2 O 2 or OH which in turn react with and degrade nucleic acids, proteins and lipids (Kou et al 2014). The degradation of proteins, nucleic acids and lipids results in the onset of senescence.…”

Section: Introductionmentioning

confidence: 99%

“…To scavenge and detoxify these ROS plant cells activate certain enzymes like catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD). Role of these antioxidant scavenging enzymes in plant development and senescence has led to the postulation that the activity of these enzymes is a system's ability to delay senescence (Kou et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Increased oxidative stress, lipid peroxidation and protein degradation trigger senescence in Iris versicolor L. flowers

Ahmad

Tahir

2016

Physiol Mol Biol Plants

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Dynamics in various physiological and biochemical aspects were studied during various stages (Itight bud stage to VI-senescent stage) of flower development in Iris versicolor. Floral diameter, fresh & dry mass and water content increased during flower opening and decreased towards senescence. Senescence was found to be related to the increased lipid peroxidation which was reflected in the decreased membrane stability index towards senescence. This increase in the lipid peroxidation was probably initiated by increased lipoxygenase activity which shot up just prior to the increase in lipid peroxidation. Soluble protein content showed a marginal decrease towards senescence with a corresponding increase in specific protease activity. Sugar fractions and a-amino acids showed a significant decrease towards senescence. Superoxide dismutase and ascorbate peroxidase activity increased as the flowers opened and thereafter a significant decrease was registered towards senescence. Catalase activity improved as the flower matures, but decreased prior to flower opening through senescence. The protein patterns from the tepal tissues resolved through electrophoresis showed a consistency in proteins upto the flower opening but a marginal decrease was registered in both high and low molecular weight proteins towards senescence. However, a protein of molecular weight 76.5 kDa showed up during senescent stages which may have a role in flower senescence.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Increased oxidative stress, lipid peroxidation and protein degradation trigger senescence in Iris versicolor L. flowers

Ahmad

Tahir

2016

Physiol Mol Biol Plants

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“…53 Previously, we observed that calcium treatment retarded the broccoli microgreen decay during storage and extended shelf life. 15 This could be contributed, at least partially, by the increased GL levels thereby enhancing the microgreen stress tolerance and defense.…”

Section: Profiling Of the Major Compounds In Broccolimentioning

confidence: 99%

Metabolomic Assessment Reveals an Elevated Level of Glucosinolate Content in CaCl₂ Treated Broccoli Microgreens

Sun¹,

Kou

Geng³

et al. 2015

J. Agric. Food Chem.

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Preharvest calcium application has been shown to increase broccoli microgreen yield and extend shelf life. In this study, we investigated the effect of calcium application on its metabolome using ultra-high-performance liquid chromatography with mass spectrometry. The data collected were analyzed using principal component analysis and orthogonal projection to latent structural discriminate analysis. Chemical composition comparison shows that glucosinolates, a very important group of phytochemicals, are the major compounds enhanced by preharvest treatment with 10 mM calcium chloride (CaCl2). Aliphatic glucosinolates (glucoerucin, glucoiberin, glucoiberverin, glucoraphanin, pentyl glucosinolate, and hexyl glucosinolate) and indolic glucosinolates (glucobrassicin, neoglucobrassicin, and 4-hydroxyglucobrassicin) were increased significantly in the CaCl2 treated microgreens using metabolomic approaches. Targeted glucosinolate analysis using the ISO 9167-1 method was further employed to confirm the findings. Results indicate that glucosinolates can be considered as a class of compounds that are responsible for the difference between two groups and a higher glucosinolate level was found in CaCl2 treated groups at each time point after harvest in comparison with the control group.

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Microgreens

Verlinden¹

2019

Horticultural Reviews

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Pre-harvest calcium application increases biomass and delays senescence of broccoli microgreens

Cited by 74 publications

References 53 publications

Increased oxidative stress, lipid peroxidation and protein degradation trigger senescence in Iris versicolor L. flowers

Increased oxidative stress, lipid peroxidation and protein degradation trigger senescence in Iris versicolor L. flowers

Metabolomic Assessment Reveals an Elevated Level of Glucosinolate Content in CaCl₂ Treated Broccoli Microgreens

Microgreens

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Pre-harvest calcium application increases biomass and delays senescence of broccoli microgreens

Cited by 74 publications

References 53 publications

Increased oxidative stress, lipid peroxidation and protein degradation trigger senescence in Iris versicolor L. flowers

Increased oxidative stress, lipid peroxidation and protein degradation trigger senescence in Iris versicolor L. flowers

Metabolomic Assessment Reveals an Elevated Level of Glucosinolate Content in CaCl2 Treated Broccoli Microgreens

Microgreens

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Product

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About

Metabolomic Assessment Reveals an Elevated Level of Glucosinolate Content in CaCl₂ Treated Broccoli Microgreens