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Plant Thaumatin-like Proteins: Function, Evolution and Biotechnological Applications

[ Vol. 21 , Issue. 1 ]

Author(s):

Carolline de Jesús-Pires, José Ribamar Costa Ferreira-Neto, João Pacifico Bezerra-Neto, Ederson Akio Kido, Roberta Lane de Oliveira Silva, Valesca Pandolfi, Ana Carolina Wanderley-Nogueira, Eliseu Binneck, Antonio Félix da Costa, Gilvan Pio-Ribeiro, Genira Pereira-Andrade, Ilza Maria Sittolin, Francisco Freire-Filho and Ana Maria Benko-Iseppon*   Pages 36 - 51 ( 16 )

Abstract:


Thaumatin-like proteins (TLPs) are a highly complex protein family associated with host defense and developmental processes in plants, animals, and fungi. They are highly diverse in angiosperms, for which they are classified as the PR-5 (Pathogenesis-Related-5) protein family. In plants, TLPs have a variety of properties associated with their structural diversity. They are mostly associated with responses to biotic stresses, in addition to some predicted activities under drought and osmotic stresses. The present review covers aspects related to the structure, evolution, gene expression, and biotechnological potential of TLPs. The efficiency of the discovery of new TLPs is below its potential, considering the availability of omics data. Furthermore, we present an exemplary bioinformatics annotation procedure that was applied to cowpea (Vigna unguiculata) transcriptome, including libraries of two tissues (root and leaf), and two stress types (biotic/abiotic) generated using different sequencing approaches. Even without using genomic sequences, the pipeline uncovered 56 TLP candidates in both tissues and stresses. Interestingly, abiotic stress (root dehydration) was associated with a high number of modulated TLP isoforms. The nomenclature used so far for TLPs was also evaluated, considering TLP structure and possible functions identified to date. It is clear that plant TLPs are promising candidates for breeding purposes and for plant transformation aiming a better performance under biotic and abiotic stresses. The development of new therapeutic drugs against human fungal pathogens also deserves attention. Despite that, applications derived from TLP molecules are still below their potential, as it is evident in our review.

Keywords:

Higher plants, TLP, PR-5, osmotin-like, zeamatin, biotic stress, abiotic stress.

Affiliation:

Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Empresa Brasileira de Pesquisa Agropecuaria, Embrapa Soja, Londrina, Parana, Instituto Agronomico de Pernambuco (IPA), Recife, Pernambuco, Departamento de Agronomia/Fitossanidade, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Pernambuco, Departamento de Agronomia/Fitossanidade, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Pernambuco, Empresa Brasileira de Pesquisa Agropecuaria, Embrapa Meio-Norte, Teresina, Piaui, Empresa Brasileira de Pesquisa Agropecuaria, Embrapa Amazonia Oriental, Belem, Para, Departamento de Genetica, Centro de Biociencias, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco

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