Are calcium oxalate crystals a dynamic calcium store in plants?

New Phytologist - Tập 223 Số 4 - Trang 1707-1711 - 2019
Élder Antônio Sousa Paiva1
1Plant Secretion & Reproduction (PlantSeR) Lab Departamento de Botânica Instituto de Ciências Biológicas Universidade Federal de Minas Gerais 31270‐901 Belo Horizonte Minas Gerais Brazil

Tóm tắt

SummaryCalcium oxalate (CaOx) crystals occur as intravacuolar deposits in most angiosperm species. Different functions have been attributed to these crystals, some of which are very speculative, until now. Calcium regulation and homeostasis seem to be the most widespread function of CaOx crystals. Being rich in calcium, these crystals constitute a reserve of calcium for plants. However, despite being bioavailable, this reserve is functional in just a few situations due to the low mobility of calcium for phloem translocation. Therefore, CaOx crystals as a calcium reserve is a paradox because in most cases the reserve cannot be used. However, in most plants, these crystals occur in organs or tissues that will be discarded, which allows the elimination of excess calcium. This suggests that CaOx crystals have a functional role in excess calcium excretion. There is some evidence that, for calcium, this excretory function is relevant for plants since they lack an excretory system dedicated to discarding solid wastes, such as calcium salts.

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Tài liệu tham khảo

10.1016/j.plantsci.2011.01.019

10.1093/jxb/ert425

10.1007/BF00392226

10.1007/BF00392278

10.1111/plb.12487

10.1146/annurev.pp.46.060195.000523

10.1080/00378941.1970.10838762

10.1016/j.foreco.2014.08.029

10.1007/s00709-010-0182-0

10.1111/j.1365-3040.1996.tb00424.x

10.1007/BF02079332

10.1016/S0044-328X(79)80153-1

10.1007/BF02860532

10.1146/annurev.arplant.56.032604.144106

10.1007/s10265-016-0812-5

10.1093/jxb/err111

10.1242/jcs.106.2.453

10.1016/j.tplants.2013.11.002

10.1104/pp.42.1.37

10.3389/fpls.2016.00569

10.1006/anbo.2001.1453

10.1111/j.1399-3054.1991.tb01725.x

10.1105/tpc.13.5.1221

10.1007/s13580-013-0031-0

10.1093/jxb/53.366.83

10.1111/j.1469-8137.2004.00923.x

10.1111/j.1469-8137.2008.02682.x

10.1016/S0168-9452(03)00120-1

10.1016/j.plantsci.2011.11.004

10.1104/pp.124.3.1097

10.1016/S0981-9428(03)00026-3

10.1590/S1516-89132005000100019

10.1080/01904169809365596

10.1039/C8MT00149A

Poovaiah BW, 1988, Molecular and cellular aspects of calcium action in plants, HortScience, 23, 267, 10.21273/HORTSCI.23.2.267

10.2216/06-101.1

10.1104/pp.100.2.859

10.1111/j.1469-8137.1977.tb02229.x

10.1073/pnas.1804130115

10.1016/S0022-5320(83)90101-6

10.1016/j.envexpbot.2009.07.007

10.1002/j.1537-2197.1979.tb06318.x

10.1146/annurev.arplant.51.1.433

10.1016/j.pbi.2017.06.009

10.1104/pp.16.00111

10.1080/15592324.2016.1215793

10.1128/AEM.00325-09

10.1071/SR17244

Volk GM, 2000, Localization of a calcium channel‐like protein in the sieve element plasma membrane, Australian Journal of Botany, 27, 779

10.1055/s-2002-20434

10.1105/tpc.11.4.751

10.1093/jexbot/52.358.891

10.1093/aob/mcg164

Wu CC, 2006, Influence of calcium availability on deposition of calcium carbonate and calcium oxalate crystals in the idioblasts of Morus australis Poir. leaves, Botanical Studies, 47, 119

10.1093/jmicro/dfs079

10.1016/S0044-328X(75)80128-0

10.1111/j.1438-8677.1995.tb00844.x

10.1078/0176-1617-00045

10.1111/j.1438-8677.1988.tb00040.x

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New Phytologist

Tập 223 Số 4

1707-1711

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