Calcium: A Central Regulator of Plant Growth and Development

Hepler, Peter K.

doi:10.1105/tpc.105.032508

Cited by 944 publications

(585 citation statements)

References 148 publications

(189 reference statements)

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“…A close interaction exists between H 2 O 2 and cytosolic calcium in response to biotic and abiotic stimuli both in plants (Sanders et al, 1999;Murata et al, 2001;Sagi and Fluhr, 2001;Yang and Poovaiah, 2002;Foreman et al, 2003) and animals (Castro et al, 2004;Redondo et al, 2004;Rosado et al, 2004;Tabet et al, 2004) systems (see Hepler, 2005, for a historical perspective assay). The same independent assay using transgenic soybean cell suspensions that was successfully applied to analyze the activities of herbivore regurgitate components (Maffei et al, 2004) was fundamental to demonstrate that H 2 O 2 is also able to elicit [Ca 21 ] cyt release (Fig.…”

Section: Discussionmentioning

confidence: 99%

Effects of Feeding Spodoptera littoralis on Lima Bean Leaves. III. Membrane Depolarization and Involvement of Hydrogen Peroxide

et al. 2006

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In response to herbivore (Spodoptera littoralis) attack, lima bean (Phaseolus lunatus) leaves produced hydrogen peroxide (H 2 O 2 ) in concentrations that were higher when compared to mechanically damaged (MD) leaves. Cellular and subcellular localization analyses revealed that H 2 O 2 was mainly localized in MD and herbivore-wounded (HW) zones and spread throughout the veins and tissues. Preferentially, H 2 O 2 was found in cell walls of spongy and mesophyll cells facing intercellular spaces, even though confocal laser scanning microscopy analyses also revealed the presence of H 2 O 2 in mitochondria/peroxisomes. Increased gene and enzyme activations of superoxide dismutase after HW were in agreement with confocal laser scanning microscopy data. After MD, additional application of H 2 O 2 prompted a transient transmembrane potential (V m ) depolarization, with a V m depolarization rate that was higher when compared to HW leaves. In transgenic soybean (Glycine max) suspension cells expressing the Ca 21 -sensing aequorin system, increasing amounts of added H 2 O 2 correlated with a higher cytosolic calcium ([Ca 21 ] cyt ) concentration. In MD and HW leaves, H 2 O 2 also triggered the increase of [Ca 21 ] cyt , but MD-elicited [Ca 21 ] cyt increase was more pronounced when compared to HW leaves after addition of exogenous H 2 O 2 . The results clearly indicate that V m depolarization caused by HW makes the membrane potential more positive and reduces the ability of lima bean leaves to react to signaling molecules.

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Section: Discussionmentioning

confidence: 99%

Effects of Feeding Spodoptera littoralis on Lima Bean Leaves. III. Membrane Depolarization and Involvement of Hydrogen Peroxide

et al. 2006

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“…Cellular signal transduction pathways are elicited as a result of fluctuations of free Ca 2+ in the cytoplasm ([Ca 2+ ] cyt ) in response to external and intracellular signals. These changes in [Ca 2+ ] cyt influence numerous cellular processes, including vesicle trafficking, cell metabolism, cell proliferation and elongation, stomatal opening and closure, seed and pollen grain germination, fertilization, ion transport, and cytoskeletal organization (Hepler, 2005). [Ca 2+ ] cyt fluctuations occur because cells have a Ca 2+ signaling "toolkit" (Berridge et al, 2000) composed of on/off switches and a multitude of Ca 2+ -binding proteins.…”

mentioning

confidence: 99%

“…Recently, it was shown that mechanical forces applied to an Arabidopsis (Arabidopsis thaliana) root can trigger a stimulusspecific [Ca 2+ ] cyt response (Monshausen et al, 2009). Translating the Ca 2+ signature into a defined cellular response is governed by a number of Ca 2+ -binding proteins such as calreticulin that act as [Ca 2+ ] cyt buffers, which shape both the amplitude and duration of the Ca 2+ signal or Ca 2+ sensors such as calmodulin that impact other downstream cellular effectors (Berridge et al, 2000;White and Broadley, 2003;Hepler, 2005).…”

mentioning

confidence: 99%

Fluorescence Resonance Energy Transfer-Sensitized Emission of Yellow Cameleon 3.60 Reveals Root Zone-Specific Calcium Signatures in Arabidopsis in Response to Aluminum and Other Trivalent Cations

et al. 2010

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“…This increase in plant height of wheat with the Ca and B application is related to the functions of these nutrients on several physiological processes in the plants. Calcium participates as messenger in metabolic processes related to growth and development of plants, such as cell division, differentiation and elongation (HEPLER, 2005), and activate several enzyme systems that regulate leaf and root growth (MENGEL; KIRKBY, 2001). In turn, the B is essential for cell wall formation and it plays an important role in the development and growth of new cells (CAMACHO-CRISTÓBAL et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

Foliar application of calcium and boron improves the spike fertily and yield of wheat

Zóz¹,

Steiner²,

Seidel³

et al. 2016

Biosci. J.

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Foliar applications of calcium (Ca) and boron (B) could improve the fertilization of flowers and enhance the wheat yield. The effects of foliar spray of Ca and B on plant growth, grain yield and yield components of wheat were investigated in this study. Treatments consisted of 0, 1.8, 3.6, and 7.2 L ha -1 application of chelated fertilizer containing 125 g L -1 of Ca and 6 g L -1 of B (Omega Cabor II ® ), divided into two spray, the first one at tillering and the second at early bloom. The results revealed that foliar spray of Ca and B did not affect the stem diameter, peduncle length, spike length, hectoliter weight and thousand-grain mass of wheat. Maximum plant height and flag leaf insertion height was recorded with 4.0 L ha -1 application of foliar fertilizer (4% increase over control). The 7.2 L ha -1 application of foliar fertilizer increased significantly the number of spikelets per spike (9%), number of grains per spike (24%), grain mass per spike (28%), spike mass (14%), number of spikes m -2 (32%) and grain yield (30%) compared to the control. Foliar application of Ca and B improves growth, fertilization of flowers and the number of fertile tillers of wheat plants resulting in higher grain yield.

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Calcium: A Central Regulator of Plant Growth and Development

Cited by 944 publications

References 148 publications

Effects of Feeding Spodoptera littoralis on Lima Bean Leaves. III. Membrane Depolarization and Involvement of Hydrogen Peroxide

Effects of Feeding Spodoptera littoralis on Lima Bean Leaves. III. Membrane Depolarization and Involvement of Hydrogen Peroxide

Fluorescence Resonance Energy Transfer-Sensitized Emission of Yellow Cameleon 3.60 Reveals Root Zone-Specific Calcium Signatures in Arabidopsis in Response to Aluminum and Other Trivalent Cations

Foliar application of calcium and boron improves the spike fertily and yield of wheat

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