| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Cerrados; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte. |
|
Data corrente: |
07/04/1994 |
|
Data da última atualização: |
16/11/2023 |
|
Autoria: |
PORTO. M. C. M. |
|
Afiliação: |
EMBRAPA-CNPMF. |
|
Título: |
Physiological mechanisms of drought tolerance in cassava (Manihot esculenta Crantz). |
|
Ano de publicação: |
1983 |
|
Fonte/Imprenta: |
Arizona: University of Arizona, 1983. |
|
Páginas: |
114p. |
|
Série: |
Tese Doutorado |
|
Idioma: |
Inglês |
|
Conteúdo: |
The response of cassava (Manihot esculenta Crantz) to water stress was evaluated in two experiments conducted in Tucson, Arizona and Santander de Quilichao, Colombia, involving five cultivars (Mven 218, CMC 40, MCol 22, Mita 1158 and MCol 1684). In both experiments stress was imposed in a given stage of the plant cycle. A third experiment, conducted in Palmira, Colombia, evaluated the relationship existng between photosynthesis, relative humidity and yields of cassava. Cultivar MCol 1684 reduced its transpirating area by either reducing leaf formation (stress given to 3-month-old plants) or increasing leaf fall (6-month-old plants). A reduction in plant growth and leaf expansion rates is attributed to reducing the plant's total leaf area. Water stress imposed in Tucson also showed reductions in plant growth, leaf formation, extension and final leaf size (except for MVen 218). Plants of MCol 1684 in Santander de Quilichao, like MVen 218 in Tucson, did not change their final leaf leaf sizes due to stress. Dry matter production was more reduced when stress was imposed early in the plant growth cycle. Dry matter partitioning was also altered by stress given to 3-month-old plants of MCol 1684. The stressed plants delayed the allocation of dry matter to the storage roots. Noon and afternoon values of leaf coductance and transpiration of MCol 1684 were reduced after 40 days of stress. Interestingly, leaf temperatures of non-stressed plants were higher than those of the stressed plants. This can be attributed to an increase in leaf reflectance in the stressed plants by changing the angle of orientation of their leaves in relation to the sun. Leaf coductances of non-stressed plants were correlated to photosynthesis, leaf temperatures and vapor pressure deficits in measurements taken at 3:00 PM. In the stressed plants conductances were also correlated to photosynthesis leaf temperatures, air moisture and transpiration. Leaf water potentials were slightly reduced by stress in Tucson, except for MVen 218. Plants of MCol 1684, in Quilichao, did not show significant reduction in L due to stress. In contrast, noon and mid-afternoon values of L were lower in the non-stressed plants after 30-40 days of treatment. This suggests the occurrence of higher daily water stresses in non-stressed plants, because of elevated transpiration rates. The effect of air humidity on the stomatal functioning of MCol 1684 seems to be strong, as proved the dependence of transpiration, conductances and photosynthesis on relative humidity. MenosThe response of cassava (Manihot esculenta Crantz) to water stress was evaluated in two experiments conducted in Tucson, Arizona and Santander de Quilichao, Colombia, involving five cultivars (Mven 218, CMC 40, MCol 22, Mita 1158 and MCol 1684). In both experiments stress was imposed in a given stage of the plant cycle. A third experiment, conducted in Palmira, Colombia, evaluated the relationship existng between photosynthesis, relative humidity and yields of cassava. Cultivar MCol 1684 reduced its transpirating area by either reducing leaf formation (stress given to 3-month-old plants) or increasing leaf fall (6-month-old plants). A reduction in plant growth and leaf expansion rates is attributed to reducing the plant's total leaf area. Water stress imposed in Tucson also showed reductions in plant growth, leaf formation, extension and final leaf size (except for MVen 218). Plants of MCol 1684 in Santander de Quilichao, like MVen 218 in Tucson, did not change their final leaf leaf sizes due to stress. Dry matter production was more reduced when stress was imposed early in the plant growth cycle. Dry matter partitioning was also altered by stress given to 3-month-old plants of MCol 1684. The stressed plants delayed the allocation of dry matter to the storage roots. Noon and afternoon values of leaf coductance and transpiration of MCol 1684 were reduced after 40 days of stress. Interestingly, leaf temperatures of non-stressed plants were higher than those of the stressed pla... Mostrar Tudo |
|
Palavras-Chave: |
Drought resistance; Estados Unidos; Estresse hidrico; Palmira; Plant water relations; Quilichao; Relative umidity; Tolerancia a seca; Tucson; Whater stress. |
|
Thesagro: |
Deficiência Hídrica; Fisiologia; Fotossíntese; Mandioca; Manihot Esculenta; Matéria Seca; Produtividade; Relação Água-Planta; Resistência a Seca; Umidade Relativa. |
|
Thesaurus Nal: |
Arizona; cassava; Colombia; drought tolerance; dry matter content; Manihot; photosynthesis; physiology; United States; yields. |
|
Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
|
Marc: |
LEADER 03829nam a2200493 a 4500
001 1651391
005 2023-11-16
008 1983 bl uuuu m 00u1 u #d
100 1 $aPORTO. M. C. M.
245 $aPhysiological mechanisms of drought tolerance in cassava (Manihot esculenta Crantz).
260 $aArizona: University of Arizona$c1983
300 $a114p.
490 $aTese Doutorado
520 $aThe response of cassava (Manihot esculenta Crantz) to water stress was evaluated in two experiments conducted in Tucson, Arizona and Santander de Quilichao, Colombia, involving five cultivars (Mven 218, CMC 40, MCol 22, Mita 1158 and MCol 1684). In both experiments stress was imposed in a given stage of the plant cycle. A third experiment, conducted in Palmira, Colombia, evaluated the relationship existng between photosynthesis, relative humidity and yields of cassava. Cultivar MCol 1684 reduced its transpirating area by either reducing leaf formation (stress given to 3-month-old plants) or increasing leaf fall (6-month-old plants). A reduction in plant growth and leaf expansion rates is attributed to reducing the plant's total leaf area. Water stress imposed in Tucson also showed reductions in plant growth, leaf formation, extension and final leaf size (except for MVen 218). Plants of MCol 1684 in Santander de Quilichao, like MVen 218 in Tucson, did not change their final leaf leaf sizes due to stress. Dry matter production was more reduced when stress was imposed early in the plant growth cycle. Dry matter partitioning was also altered by stress given to 3-month-old plants of MCol 1684. The stressed plants delayed the allocation of dry matter to the storage roots. Noon and afternoon values of leaf coductance and transpiration of MCol 1684 were reduced after 40 days of stress. Interestingly, leaf temperatures of non-stressed plants were higher than those of the stressed plants. This can be attributed to an increase in leaf reflectance in the stressed plants by changing the angle of orientation of their leaves in relation to the sun. Leaf coductances of non-stressed plants were correlated to photosynthesis, leaf temperatures and vapor pressure deficits in measurements taken at 3:00 PM. In the stressed plants conductances were also correlated to photosynthesis leaf temperatures, air moisture and transpiration. Leaf water potentials were slightly reduced by stress in Tucson, except for MVen 218. Plants of MCol 1684, in Quilichao, did not show significant reduction in L due to stress. In contrast, noon and mid-afternoon values of L were lower in the non-stressed plants after 30-40 days of treatment. This suggests the occurrence of higher daily water stresses in non-stressed plants, because of elevated transpiration rates. The effect of air humidity on the stomatal functioning of MCol 1684 seems to be strong, as proved the dependence of transpiration, conductances and photosynthesis on relative humidity.
650 $aArizona
650 $acassava
650 $aColombia
650 $adrought tolerance
650 $adry matter content
650 $aManihot
650 $aphotosynthesis
650 $aphysiology
650 $aUnited States
650 $ayields
650 $aDeficiência Hídrica
650 $aFisiologia
650 $aFotossíntese
650 $aMandioca
650 $aManihot Esculenta
650 $aMatéria Seca
650 $aProdutividade
650 $aRelação Água-Planta
650 $aResistência a Seca
650 $aUmidade Relativa
653 $aDrought resistance
653 $aEstados Unidos
653 $aEstresse hidrico
653 $aPalmira
653 $aPlant water relations
653 $aQuilichao
653 $aRelative umidity
653 $aTolerancia a seca
653 $aTucson
653 $aWhater stress
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Café. |
|
Data corrente: |
04/09/2023 |
|
Data da última atualização: |
04/09/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 3 |
|
Autoria: |
ANGELO, P. C. da S.; SERA, G. H.; SHIGUEOKA, L. H.; CAIXETA, E. T. |
|
Afiliação: |
PAULA CRISTINA DA SILVA ANGELO, CNPCa; GUSTAVO HIROSHI SERA, INSTITUTO DE DESENVOLVIMENTO RURAL DO PARANÁ; LUCIANA HARUMI SHIGUEOKA, INSTITUTO DE DESENVOLVIMENTO RURAL DO PARANÁ; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa. |
|
Título: |
Rust resistance SH3 loci in Coffea spp. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Physiological and Molecular Plant Pathology, 127, article 102111, 2023. |
|
Páginas: |
12 p. |
|
DOI: |
https://doi.org/10.1016/j.pmpp.2023.102111 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Resistance to the leaf rust delivered by SH3 factor(s) from Coffea liberica is well-grounded as specially durable. We analyzed C. liberica SH3 genes, here described for the first time, and SH3 loci in other Coffea species, taking C. arabica cv. IAPAR59 as reference. All species display multiple SH3-RxCC-NBS-LRR variants. SH3-Rx proteins, charged with RanGAP2 co-factors and fungi effectors in the cytoplasm, potentially, target DNA directly to trigger defense. C. liberica SH3-RxCC-NBS-LRR set is large, comprising more orthologs to A. thaliana CAR1 and 'canonical' leucine repeats among diploids analyzed. Interestingly, genes sharing the loci with SH3-RxCC-NBS-LRRs are preserved and defense related. |
|
Thesaurus NAL: |
Coffea liberica; Disease resistance; Leaf rust. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01338naa a2200217 a 4500
001 2156380
005 2023-09-04
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.pmpp.2023.102111$2DOI
100 1 $aANGELO, P. C. da S.
245 $aRust resistance SH3 loci in Coffea spp.$h[electronic resource]
260 $c2023
300 $a12 p.
520 $aResistance to the leaf rust delivered by SH3 factor(s) from Coffea liberica is well-grounded as specially durable. We analyzed C. liberica SH3 genes, here described for the first time, and SH3 loci in other Coffea species, taking C. arabica cv. IAPAR59 as reference. All species display multiple SH3-RxCC-NBS-LRR variants. SH3-Rx proteins, charged with RanGAP2 co-factors and fungi effectors in the cytoplasm, potentially, target DNA directly to trigger defense. C. liberica SH3-RxCC-NBS-LRR set is large, comprising more orthologs to A. thaliana CAR1 and 'canonical' leucine repeats among diploids analyzed. Interestingly, genes sharing the loci with SH3-RxCC-NBS-LRRs are preserved and defense related.
650 $aCoffea liberica
650 $aDisease resistance
650 $aLeaf rust
700 1 $aSERA, G. H.
700 1 $aSHIGUEOKA, L. H.
700 1 $aCAIXETA, E. T.
773 $tPhysiological and Molecular Plant Pathology, 127, article 102111, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Café (CNPCa) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
