Arid
DOI10.1016/j.scienta.2012.11.021
Ecophysiological performance of three Opuntia ficus-indica cultivars exposed to carmine cochineal under field conditions
Falcao, Hiram M.1; Oliveira, Marciel T.; Mergulhao, Adalia C.1,2; Silva, Marcia V.3; Santos, Mauro G.1
通讯作者Santos, Mauro G.
来源期刊SCIENTIA HORTICULTURAE
ISSN0304-4238
出版年2013
卷号150页码:419-424
英文摘要

Three cactus pear, Opuntia ficus-indica cultivars, with different levels of tolerance to carmine cochineal, IPA-Clone 20 (susceptible), F-08 (tolerant) and Orelha de Elefante Mexicana (resistant), were grown under field and insect presence conditions. We analyzed the epicuticular wax, soluble sugars, free amino acid, total protein, chlorophyll, night acidity contents, PEP carboxylase activity and produced biomass. The cultivar IPA had wax content 50% greater than the others. The F-08 showed the highest efficiency in conversion of the carbon biomass. Twelve months under field conditions and subject to carmine cochineal attack, F-08 showed 20% of the cladodes area infested and higher biomass compared to IPA and OEM. However susceptible and resistant cultivars showed the highest and lowest activity of PEP, respectively, when compared to the tolerant cultivar. Moreover, both had high content of organic acids. Nevertheless, the nighttime high accumulation of organic acids did not result into biomass. The higher productivity in F-08 may be due to a balanced investment between defense and productivity, featuring a mutualistic interaction with carmine cochineal. Thus, the use of tolerant cultivars, rather than resistant, can meet the producer’s demands and keep the insect at levels that do not cause significant damage to agribusiness. Finally, our results support that the tolerant cultivar should be cultivated in northeastern Brazil, and also involvid in plant breeding programs. (C) 2012 Elsevier B.V. All rights reserved.


英文关键词Biotic stress Cactus pear CAM metabolism PEPC activity Semi-arid
类型Article
语种英语
国家Brazil
收录类别SCI-E
WOS记录号WOS:000315557600058
WOS关键词PHOSPHOENOLPYRUVATE CARBOXYLASE ; PLANT ; RESISTANCE ; TOLERANCE ; WAXES
WOS类目Horticulture
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/179897
作者单位1.Univ Fed Pernambuco, Dept Bot, Plant Ecophysiol Lab, BR-50670901 Recife, PE, Brazil;
2.Agron Inst Pernambuco, Genome Lab, BR-50761000 Recife, PE, Brazil;
3.Univ Fed Pernambuco, Dept Biochem, Mol Biol Lab, BR-50670901 Recife, PE, Brazil
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Falcao, Hiram M.,Oliveira, Marciel T.,Mergulhao, Adalia C.,et al. Ecophysiological performance of three Opuntia ficus-indica cultivars exposed to carmine cochineal under field conditions[J],2013,150:419-424.
APA Falcao, Hiram M.,Oliveira, Marciel T.,Mergulhao, Adalia C.,Silva, Marcia V.,&Santos, Mauro G..(2013).Ecophysiological performance of three Opuntia ficus-indica cultivars exposed to carmine cochineal under field conditions.SCIENTIA HORTICULTURAE,150,419-424.
MLA Falcao, Hiram M.,et al."Ecophysiological performance of three Opuntia ficus-indica cultivars exposed to carmine cochineal under field conditions".SCIENTIA HORTICULTURAE 150(2013):419-424.
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