TITLE

Differential Responses of Two Lactuca sativa Varieties to Bicarbonate-Induced Iron Deficiency

AUTHOR(S)
Chebbi, Mohamed; Msilini, Najoua; Amdouni, Thouraya; Ouerghi, Zeineb
PUB. DATE
December 2013
SOURCE
Journal of Stress Physiology & Biochemistry;2013, Vol. 9 Issue 4, p39
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Iron chlorosis induced by bicarbonate is very common in calcareous soils, where bicarbonate (HCO3-) ions are present at high concentrations. In this study, morpho-physiological and biochemical responses of two Lactuca sativa varieties (Romaine and Vista) to bicarbonateinduced iron deficiency were investigated. The culture was conducted on nutrient solution containing 5 μM Fe and 10 mM NaHCO3, in a growth chamber with controlled conditions. After 14 days of bicarbonate treatment, the two varieties seedling showed a slight yellowing of young leaves associated with a significant decline of plant biomass, leaf number and area. Furthermore, the concentrations of the nutrient elements (potassium, magnesium, iron and calcium) in leaves and roots of two lettuce varieties were modified. In roots of bicarbonatetreated plants, the Fe-chelate reductase activity was increased as compared to control in both varieties. PEPC activity was enhanced only in Vista variety. Moreover, Fe deficiency induced a small change in the photosynthetic parameters and chlorophyll fluorescence, especially in Romaine variety. These changes are accompanied by decreases in ribulose 1.5-bisphosphate carboxylase/oxygenase (Rubisco) activity. These findings indicated that vista variety could survive at low iron supply.
ACCESSION #
91939599

 

Related Articles

  • Response of Yield, Growth and Iron Deficiency Chlorosis of 'Santa Maria' Pear Trees on Four Rootstocks. IKINCI, Aii; BOLAT, Ibrahim; ERCISLI, Sezai; ESITKEN, Ahmet // Notulae Botanicae Horti Agrobotanici Cluj-Napoca;2016, Vol. 44 Issue 2, p563 

    This study was conducted on the 'Santa Maria' pear (Pyrus communis L.J budded on various rootstocks: pear seedling (Pyrus communis L.J and three quince (Cydonia oblonga Mill.) rootstocks, respectively 'BA 29', 'QA' and 'QC', under calcareous soil and semi-arid conditions, during 2004-2012. The...

  • Effects of Exogenous Salicylic Acid on Alleviating Chlorosis Induced by Iron Deficiency in Peanut Seedlings ( Arachis hypogaea L.). Kong, Jing; Dong, Yuanjie; Xu, Linlin; Liu, Shuang; Bai, Xiaoying // Journal of Plant Growth Regulation;Dec2014, Vol. 33 Issue 4, p715 

    The effects of salicylic acid (SA) on alleviating chlorosis induced by iron (Fe) deficiency in peanut seedlings ( Arachis hypogaea L.) were studied by investigating the symptoms, plant growth, chlorophyll concentrations, soluble Fe concentration, Fe distribution in subcellular, and antioxidant...

  • Overexpression of AtFRO6 in transgenic tobacco enhances ferric chelate reductase activity in leaves and increases tolerance to iron-deficiency chlorosis. Li-Ya Li; Qiu-Yi Cai; Dian-Si Yu; Chang-Hong Guo // Molecular Biology Reports;Aug2011, Vol. 38 Issue 6, p3605 

    The Arabidopsis gene FRO6(AtFRO6) encodes ferric chelate reductase and highly expressed in green tissues of plants. We have expressed the gene AtFRO6 under the control of a 35S promoter in transgenic tobacco plants. High-level expression of AtFRO6 in transgenic plants was confirmed by northern...

  • SlbHLH068 interacts with FER to regulate the iron-deficiency response in tomato. Juan Du; Zongan Huang; Biao Wang; Hua Sun; Chunlin Chen; Hong-Qing Ling; Huilan Wu // Annals of Botany;Jul2015, Vol. 116 Issue 1, p23 

    * Background and Aims Iron is an essential micronutrient for all organisms and its uptake, translocation, distribution and utilization are regulated in a complex manner in plants. FER, isolated from tomato (Solanum lycopersicum), was the first transcription factor involved in the iron...

  • Transcriptional and physiological changes in relation to Fe uptake under conditions of Fe-deficiency and Cd-toxicity in roots of Vigna radiata L. Muneer, Sowbiya; Jeong, Byoung; Kim, Tae-Hwan; Lee, Jeong; Soundararajan, Prabhakaran // Journal of Plant Research;Nov2014, Vol. 127 Issue 6, p731 

    We investigated transcriptional and physiological changes in relation to Fe transport and uptake under various conditions of iron (Fe)-deficiency and cadmium (Cd) toxicity. Responses to four such Fe/Cd conditions were evaluated, revealing that oxidative stress was generated in the presence of...

  • There and back again, or always there? The evolution of rice combined strategy for Fe uptake. Klein Ricachenevsky, Felipe; Sperotto, Raul Antonio // Frontiers in Plant Science;Apr2014, Vol. 5, preceding p1 

    The article focuses on a study regarding iron uptake mechanism in rice. It highlights the importance of iron, which is considered an essential micronutrient, for almost all living organisms and notes that iron deficiency in plants can lead to severe chlorosis, growth arrest, and plant death....

  • Still Keeping Shamrocks Green. Miller, Chad T.; Miller, William B. // GPN: Greenhouse Product News;Dec2010, Vol. 20 Issue 12, p26 

    The article focuses on the experiment done by researchers to examine the causes of chlorosis problem in oxalis regnellii commonly known as shamrock. The effect of pH was found on the growth and development of the plant inducing iron deficiency resulting in its yellowing. Suggestions to growers...

  • Iron deficient--or something else? Nichols, David // Australian Horticulture;May2005, Vol. 103 Issue 5, p10 

    Deals with iron deficiency in plants. Explanation on iron-efficient plants; Information on interveinal chlorosis; Facts about the other trace element deficiencies.

  • PUMP up the iron to prevent chlororsis. Lara, Joe // GMPRO - Greenhouse Management & Production;Feb2009, Vol. 29 Issue 2, p39 

    The article discusses the importance of iron supplementation in overcoming some new plant varieties' inefficiency at absorbing iron. Growers have turned to iron chelates to help plants overcome a lack of iron. It explains the cause of iron deficiency. It offers suggestions in identifying the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics