'Desiccation tolerance of Rhamnidium elaeocarpum Reissek (Rhamnaceae) seeds

Rhamnidium elaeocarpum seeds from Jaupaci, Brazil, were dried from 37% to 12% water content to study desiccation tolerance. Physiological parameters like germination speed and respiration rate were measured alongside biochemical analyses of enzymes and heat-resistant proteins. The study found that catalase activity, not peroxidase, was more associated with drying tolerance in seeds with 12% water content.

Use Cases

• Modeling seed germination success based on water content and respiration rate data.
• Analyzing the relationship between catalase, peroxidase, and esterase enzyme activities and dehydration stress.
• Studying the role of low molecular weight (48.7 to 13.2 kDa) heat-resistant proteins in seed survival.
• Comparing physiological indices like germination speed index and emergence speed index under different moisture conditions.

Strengths

• Includes multiple physiological measurements: germination, emergence, electrical conductivity, and respiration rate.
• Provides detailed biochemical analysis of specific isoenzymes (catalase, peroxidase, esterase) and enzymes (endo-β-mannanase, α-amylase).
• Specifies the geographic origin (municipality of Jaupaci, Goias State, Brazil) and controlled drying conditions (35ºC oven).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Lílian Abadia da Silva via paperswithcode

Collection Method

Experimental study; seeds were collected and subjected to controlled drying, with subsequent laboratory analysis.

Geography

Municipality of Jaupaci, Goias State, Brazil