Skip to content
Research Article Open access CC BY 4.0

Evaluation of Calcium Regulating Role of Calcium Oxalate Crystals in Eddo Corms in Hydroponic Solution Containing Calcium at Different Concentrations

Mohammad Nazrul Islam, Shilpi Islam, Michio Kawasaki

Asian Research Journal of Agriculture · pp. 1–12 · Published 8 Dec 2018

10.9734/ARJA/2018/45106

Abstract

Aims: Involvement of calcium oxalate crystals in the maintenance of calcium homeostasis in the corms of eddo in hydroponic solution containing calcium at different concentrations was investigated. Study Design: Plants of eddo [Colocasia esculenta (L.) Schott var. antiquorum Hubbard & Rehder] cv. Aichiwase was used in this study. Seed corms were planted in plastic pots filled with vermiculite and the plants were sprouted by watering under natural temperature, light and humidity conditions in the green house at Hirosaki University, Hirosaki, Japan. After 2 months the plants were grown in a growth chamber. Plants with new growing corms were subjected to grown in water culture solutions containing one of the four treatments as 0 mM calcium, 1 mM calcium nitrate (control), 15 mM calcium nitrate and 15 mM calcium chloride. Results and Discussion: Under scanning electron microscopy and optical microscopy, few number of raphide crystals were observed in the cortex and many druse crystals were observed in the lateral part containing cortex, the connecting part between root and corm, and the peripheral part of stele. Very few number of druse crystals were observed in the center part of stele. The number and size of crystals in the lateral part of corms under 1 mM calcium nitrate treatment were significantly higher than that in 0 mM calcium solution and were significantly lower than that in the 15 mM calcium solutions. Calcium mapping images by energy dispersive X-ray spectrometry showed a positive correlation between the amounts of calcium in the lateral part of corms and calcium concentration in treatment solutions. The weight percentage of calcium relative to the total weight of major constituent elements per crystal idioblast was significantly higher than that per parenchyma cell in the lateral part. However, the weight percentage of calcium per parenchyma cell except idioblasts of the lateral part was stable among the treatments. The results suggest that calcium is accumulated in crystals under calcium-excessive conditions and is released from crystals under calcium-deficient conditions for stabilisation of calcium levels in the tissues other than the idioblasts in the lateral part of eddo corm. In addition, the weight percentage of calcium per storage parenchyma cell of stele was stable among the treatments and was significantly lower than the weight percentage of calcium per parenchyma cell of the lateral part. Conclusion: The results indicate that calcium delivered from roots is mostly entered at the lateral parts of corms and is accumulated in calcium oxalate crystals in the cortex, the connecting part between root and corm, and the peripheral part of stele. As a result, calcium contents of the storage parenchyma cells of stele may remain stable at a low level under different calcium treatments.

Calcium calcium oxalate crystal calcium homeostasis corm hydroponic solution eddo

References (17)

  1. 1 Calcium Regulation in Plant Cells and Its Role in Signaling [DOI]
  2. 2 Taro as a local feed resource for pigs in small scale household condition
  3. 3 The Role of Druse and Raphide Calcium Oxalate Crystals in Tissue Calcium Regulation in Pistia stratiotes Leaves [DOI]
  4. 4 Processing effects on susceptibility of starch to digestion in some dietary starch sources [DOI]
  5. 5 Calcium oxalate formation in Lemna minor: physiological and ultrastructural aspects of high capacity calcium sequestration [DOI]
  6. 6 Taro : a review of colocasia esculenta and its potentials
  7. 7 TARO “Colocasia esculenta”: It’s Utilization in Food Products in Ghana [DOI]
  8. 8 Calcium in the Vacuoles and Cell Walls of Plant Tissue1)1Dedicated to Prof. Dr. H. Meusel on The occasion of his 80th birthday. [DOI]
  9. 9 DISTRIBUTION OF CALCIUM OXALATE CRYSTAL IDIOBLASTS IN LEAVES OF TARO (COLOCASIA ESCULENTA) [DOI]
  10. 10 Oxalate content of cormels of Japanese taro (Colocasia esculenta (L.) Schott) and the effect of cooking [DOI]
  11. 11 Composition of oxalates in baked taro (Colocasia esculenta var. Schott) leaves cooked alone or with additions of cows milk or coconut milk [DOI]
  12. 12 Evaluation of Calcium Regulating Roles of Guttation and Calcium Oxalate Crystals in Leaf Blades and Petioles of HydroponicallyGrown Eddo [DOI]
  13. 13 Mineral Inter-relationship among Soil, forage and Dairy cattle in Kashmir, India [DOI]
  14. 14 Localization of Casparian Bands and Crystal Cells in Relation to Aluminum Distribution in the Primary Root of Eddo under Aluminum Treatment [DOI]
  15. 15 Nutrient value and in vitro gas production of African wild cocoyam (Colocasia esculentrum). [DOI]
  16. 16 Colocasia esculenta (L.) Schott as an Alternative Energy Source in Animal Nutrition [DOI]
  17. 17 Structure of Crystal Cells and Influences of Leaf Development on Crystal Cell Development and Vice Versa in Phaseolus vulgaris (Leguminosae) [DOI]

Cited by 1

1 citation reported by external sources — individual citing-article records aren't available to list yet.

Related research

Article metrics

Real usage data collected on this platform.

10

Page views

0

PDF downloads

0

Outbound clicks

1

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.