Photosynthetic and Chloroplast Ultrastructural Consequences of Manganese Deficiency in Soybean

Weiland, R. T.; Noble, Reginald D.; Crang, Richard E.

doi:10.1002/j.1537-2197.1975.tb14076.x

Cited by 16 publications

(1 citation statement)

References 29 publications

(32 reference statements)

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“…Iron is among the most impor tant micronutrients in plant nutrition 4 , essential mainly for the young growing parts of plants 5 . Manganese, another essential micronutrient, is involved in several metabolic pathways of plants like photosynthesis 6 . To create and maintain as much as possible a high quality flowering aesthetic lantana plant after PBZ applications, proper fertilization is demanded 7 in both macro-and micronutrient levels.…”

Section: Introductionmentioning

confidence: 99%

Micronutrient Content in Relation to Specific Leaf Area, Light Regime and Drenched-Applied Paclobutrazol in Lantana Camara L.

2015

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Iron and manganese are essential microelements on plant growth but no information is known with regard to their content on Lantana camara L. subsp. camara (lantana) treated with drenched-applied paclobutrazol. Thus, the effects of drenched-applied paclobutrazol [0 (control), 40, and 80 mg l-1] on leaf iron and manganese contents of lantana plants were investigated testing two light regimes, resulted from the establishment of different shading levels, 0% (daily light quantity of 27.8 mol m-2 d-1) and 66% (9.4 mol m-2 d-1) in a glasshouse in Attica, Greece. Possible correlations between the studied minerals contents (iron and manganese) and specific leaf area were examined. Analysis of variance showed that iron and manganese contents were affected by shading level, paclobutrazol, their interaction and paclobutrazol, respectively. Iron content increased significantly after treatments with paclobutrazol, compared to control, at full light environment (0% shading). Leaf manganese content presented no significant increase with the increasing paclobutrazol concentrations at 0% and 66% shadings. No significant differences were noted (dispensing control plants) on iron and manganese contents, when examining plants which were treated with the same paclobutrazol concentration, between the studied light environments. From the linear correlation analysis, manganese content exhibited a significant negative correlation with specific leaf area which was not shown by the iron content. The results of the present study could contribute to establishing iron and manganese sufficiency ranges on L. camara, especially after treatments with different light environments and paclobutrazol

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Section: Introductionmentioning

confidence: 99%

Micronutrient Content in Relation to Specific Leaf Area, Light Regime and Drenched-Applied Paclobutrazol in Lantana Camara L.

2015

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Physiological Functions of Manganese in Plants

Campbell¹,

Nable²

1988

Manganese in Soils and Plants

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This review aims to relate some aspects of plant growth to the physiological functions of Mn within the plant. Yields of crops, pastures and trees are affected adversely by either deficiencies or excesses (toxicities) of Mn. Concomitantly, symptoms of the disorder usually but not always appear on leaves, roots or fruits. It is these extremes of Mn nutrition that have been largely responsible for elucidating its physiology.The physiology of Mn in plants is governed by the chemistry of Mn, particularly the configuration of the electrons in the d shell (Chapter 1). When Mn is in the Mn(Il) oxidation state there is one unpaired electron in each of the five d orbitals i.e. the stable, energetically favoured d 5 configuration is attained. Two consequences of this configuration are (i) Mn is a relatively weak ligand and (ii) Mn has the potential to form compounds in several oxidation states. These factors have contributed to the difficulties in unraveling the physiology of Mn: many functions have been derived by inference, but recent biochemical advances (Chapter 9) tend to substantiate these functions.Manganese has a profound influence on three particular physiological (metabolic) functions: (i) photosynthesis, particularly electron transport in photo system II, photodestruction of chlorophyll and chloroplast structure, (ii) N metabolism especially the sequential reduction of nitrate, and (iii) aromatic ring compounds as precursors for aromatic amino acids, hormones (auxins), phenols and lignins. Growth physiology of Mn 2

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Chlorophyll-protein and polypeptide composition of Mn-deficient sugar beet thylakoids

1986

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Photosynthetic and Chloroplast Ultrastructural Consequences of Manganese Deficiency in Soybean

Cited by 16 publications

References 29 publications

Micronutrient Content in Relation to Specific Leaf Area, Light Regime and Drenched-Applied Paclobutrazol in Lantana Camara L.

Micronutrient Content in Relation to Specific Leaf Area, Light Regime and Drenched-Applied Paclobutrazol in Lantana Camara L.

Physiological Functions of Manganese in Plants

Chlorophyll-protein and polypeptide composition of Mn-deficient sugar beet thylakoids

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