Plant development of &lt;i&gt;Ranunculus asiaticus&lt;/i&gt; L. tuberous roots is affected by different temperature and oxygen conditions during storage period

Beruto, Margherita; Fibiani, Marta; Rinino, Simona; Scalzo, Robeto Lo; Curir, P.

doi:10.1560/ijps.57.4.377

Cited by 15 publications

(18 citation statements)

References 14 publications

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“…This hypothesis is further upheld by the low respiration rates of our tissue stored at 5°C. The long-term results under natural aging presented by Beruto et al (2009) support our findings over the relative short-term.…”

Section: Discussionsupporting

confidence: 87%

“…In a recent study, when R. asiaticus TRs were stored for 1 year at 2°C under either open or modified atmosphere storage (2% O 2 and 4% CO 2 ), percent survival was maintained at 90%, which was significantly greater than those under open storage at room temperature (ranged %15 to 23°C) (Beruto et al, 2009). It was proposed that the nonsignificant influence of atmosphere modification on viability was the result of low metabolism during storage.…”

Section: Discussionmentioning

confidence: 99%

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Storage Temperature and Moisture Content Affect Respiration and Survival of Ranunculus asiaticus Dry Tuberous Roots

Cerveny¹,

Miller²,

Taylor³

2011

horts

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Ranunculus asiaticus (L.) is an ornamental geophyte with some commercial production challenges presumed to be related to the storage of its desiccation tolerant tuberous roots (TRs). We investigated the influence of temperature and relative humidity during storage on viability of R. asiaticus TRs. The TRs were stored in specialized chambers for controlling relative humidity under flow-through or closed systems. In the flow-through system, air was bubbled through glycerol–water solutions to create relative humidities of 20%, 40%, 60%, 80%, or 100% and then passed through storage chambers held at 5, 20, or 35 °C for up to 20 weeks. In closed storage, tissue was equilibrated to a given moisture content (fresh basis) at 15 °C by suspending TRs over glycerol–water solutions (35%, 60%, or 85% relative humidity) with fans to circulate air. These containers were closed for 4 weeks and then tissue was transferred to sealed jars for up to 17 weeks at 5 or 25 °C. In both systems, TRs held with elevated temperature and relative humidity had the largest decrease in percent survival when planted after storage. Flow-through storage gave greater variability in TRs moisture content than closed storage. Tuberous roots at 25 °C had higher respiration rates than at 5 °C under closed storage; elevated moisture content also led to increased respiration. From these results it can be concluded that R. asiaticus dry TRs should be stored cool and dry for long-term viability.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Storage Temperature and Moisture Content Affect Respiration and Survival of Ranunculus asiaticus Dry Tuberous Roots

Cerveny¹,

Miller²,

Taylor³

2011

horts

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“…Flowering in R. asiaticus is a complex process, in which the thermal history of tuberous roots and the photoperiod play a crucial role. Cold treatments of tuberous roots (vernalization) anticipate sprouting, leaf rosette formation and flowering (Meynet 1993, Beruto et al 2009. Consequently, the use of vernalized propagation material is a common practice in Italy for ranunculus, as well as for many flower geophytes, to anticipate flowering.…”

Section: Introductionmentioning

confidence: 99%

The role of light quality of photoperiodic lighting on photosynthesis, flowering and metabolic profiling in Ranunculus asiaticus L.

Modarelli

Arena

Pesce

et al. 2020

Physiologia Plantarum

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Photoperiodic light quality affects flowering of long day plants, by influencing the phytochrome photoequilibria (PPE) at plant level; however, the most effective light spectrum to promote flowering is still unknown for most of the flower crops. We evaluated the influence of light spectrum of three light sources, with different induced PPE, on photosynthesis, metabolic profiling, plant growth and flowering in two hybrids of Ranunculus asiaticus L., MBO (early flowering) and MDR (medium earliness). Three photoperiodic treatments were compared to natural day length (NL): white fluorescent light (PPE 0.84), light emitting diodes (LEDs) with red:far red (R:FR) light at 3:1 ratio (PPE, 0.84) and LEDs with R:FR light at 1:3 ratio (PPE 0.63). Under natural light, net photosynthesis was higher in MDR than in MBO, while photochemistry was similar in the hybrids. Compared to NL, photoperiodic treatments did not affect net photosynthesis, while they promoted the quantum yield of PSII and reduced the non‐photochemical quenching. Under NL, plant growth was greater in MBO, while flowering started earlier in MDR and flowers characteristics were similar in the hybrids. Despite the greater sensitivity of MDR plants in terms of metabolism, photoperiodic lighting improved plant growth and reduced the flowering time only in MBO, with a stronger effect under R:FR 3:1 light. MDR plants were characterized by higher soluble sugars, polyphenols, photosynthetic pigments and proteins, while MBO plants by higher starch and amino acid content. The morphological effects of photoperiodic light quality and the hybrid‐specific response should be taken into account to optimize lighting protocols in commercial farms.

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“…Flowering is influenced by both the thermal history of tuberous roots and the photoperiod during plant growth. Particularly, cold treatments of tuberous roots (vernalization) anticipate sprouting, leaf rosette formation, and flowering (Beruto et al, 2009); therefore, the use of vernalized propagation material is a common practice for production scheduling of cut flowers in ranunculus, similarly, to many flower geophytes.…”

Section: Introductionmentioning

confidence: 99%

Metabolic Profile and Performance Responses of Ranunculus asiaticus L. Hybrids as Affected by Light Quality of Photoperiodic Lighting

et al. 2020

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Ranunculus asiaticus is a quantitative long day plant grown for cut flowers and flowering potted plants production. We evaluated the influence of light spectrum of three light sources for end-of-day photoperiodic treatments, with different phytochrome photoequilibria (PPE) induced at plant level, on the metabolic profiling of two hybrids of R. asiaticus L., MBO and MDR, in plants from vernalized tuberous roots. The following treatments were compared with natural day length (NL): white fluorescence lamp (FL, PPE 0.84), light emitting diodes (LEDs) Red:Far Red light at 3:1 ratio (R:FR 3:1, PPE 0.84), and LEDs Red:Far Red light at 1:3 ratio (R:FR 1:3, PPE 0.63). Measurements were carried out to evaluate the time course of carbohydrate, amino acid, and protein levels throughout the growing cycle in tuberous roots and leaves, in relation to the different plant stages (pre-planting, vegetative phase, and flowering). The study of metabolic profiling suggested that the differences between the tuberous root reserves of the two R. asiaticus hybrids could be responsible for the capacity of MBO to exert an early flowering. In particular, the proton-consuming synthesis during the pre-planting of two amino acids, alanine and γ-aminobutyric acid (GABA), is able to buffer the cytoplasmic acidosis and pH altered by the vernalization process, and GABA itself can efficiently scavenge reactive oxygen species. This fast response to the stress caused by vernalization allows MBO plants to accelerate the process of vegetative development and flowering. Some other changes in metabolites profile were certainly related to the different responses to day length and photoperiodic light quality in the two hybrids, such as dose exerted by low R:FR lighting in both MBO and MDR. However, most of the responses are under a strict genetic control.

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Plant development of <i>Ranunculus asiaticus</i> L. tuberous roots is affected by different temperature and oxygen conditions during storage period

Cited by 15 publications

References 14 publications

Storage Temperature and Moisture Content Affect Respiration and Survival of Ranunculus asiaticus Dry Tuberous Roots

Storage Temperature and Moisture Content Affect Respiration and Survival of Ranunculus asiaticus Dry Tuberous Roots

The role of light quality of photoperiodic lighting on photosynthesis, flowering and metabolic profiling in Ranunculus asiaticus L.

Metabolic Profile and Performance Responses of Ranunculus asiaticus L. Hybrids as Affected by Light Quality of Photoperiodic Lighting

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