Relationship between Proline and Abscisic Acid in the Induction of Chilling Tolerance in Maize Suspension-Cultured Cells

Xin, Zhanguo; Li, Paul H.

doi:10.1104/pp.103.2.607

Cited by 56 publications

(25 citation statements)

References 16 publications

(31 reference statements)

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“…Exogenous proline has been shown to have a positive effect on recovery from cold stress in cultures of maize and potato [6,23]. Our studies show that not only can cultures survive low temperatures, but moreover that they are capable of active growth while the cold stress is still being applied.…”

Section: Discussionmentioning

confidence: 59%

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Influence of exogenous L-proline on embryogenic cultures of larch (Larix leptoeuropaeaDengler), sitka spruce (Picea sitchensis(Bong.) Carr.) and oak (Quercus roburL.) subjected to cold and salt stress

Gleeson

Lelu‐Walter²,

Parkinson

2004

Ann. For. Sci.

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NoteInfluence of exogenous L-proline on embryogenic cultures of larch (Larix leptoeuropaea Dengler), sitka spruce (Picea sitchensis (Bong.) Carr.) and oak (Quercus robur L.) subjected to cold and salt stress Deirdre GLEESON a Abstract -The effect of exogenous L-proline (1 mM, 10 mM, and 100 mM) on embryogenic cultures of larch, sitka spruce and oak subjected to environmental stresses was examined. Low temperature (4°C) completely inhibited growth of the cultures and this was partially alleviated by the addition of proline. Our studies show that not only can cultures survive low temperatures, but are capable of active growth while the cold stress is still being applied. Growth was inversely related to [NaCl] with complete inhibition at 200 mM. Proline stimulated growth at all concentrations tested permitting growth with 200 mM NaCl even at low (1 mM) proline concentrations. Release of internal cellular potassium was inversely related to freezing temperature and this release was reduced by exogenous proline. These results for cultures of forest species are consistent with findings previously reported for deciduous herbaceous angiosperms and suggest that proline may have a role in protection of forest species from environmental stresses. trees / chilling / environmental stress / toleranceRésumé -Effet de la L-proline apportée de manière exogène à des cultures embryogènes, de mélèze hybride (Larix leptoeuropaea Dengler), d'épicéa de sitka (Picea sitchensis Bong.) et de chêne (Quercus robur L.), soumises à des stress au froid et salin. Des cultures embryogènes de mélèze hybride, d'épicéa de sitka et de chêne ont été soumises à différentes conditions de culture et leur croissance étudiée en fonction de l'ajout de L-proline au milieu de culture (1 mM, 10 mM, et 100 mM). Si des températures basses (4°C) inhibent totalement la croissance des cultures, celle-ci redevient partiellement normale en présence de proline. Nos résultats montrent que les cultures non seulement survivent à de basses températures mais sont aussi capables de croître activement au cours de la durée d'application du froid. De même, la croissance est inversement corrélée à la concentration en sel avec sa complète inhibition en présence de 200 mM de NaCl. L'addition de L-proline au milieu de culture (quelles que soient les concentrations testées) stimule la croissance des cultures, même en présence de 200 mM de NaCl. La libération de potassium intracellulaire est inversement corrélée à la température de congélation, libération qui est réduite en présence de proline exogène. Ces résultats, obtenus pour des cultures d'espèces forestières, sont en accord avec ceux précédemment rapportés pour des espèces herbacées. Ils suggèrent le rôle potentiel de la proline dans la protection de ces espèces forestières soumises à des stress abiotiques.arbre / froid / stress abiotique / tolérance

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Section: Discussionmentioning

confidence: 59%

“…The accumulation of proline is also associated with plant responses to chilling [4,6,23]. Plants often overproduce proline in response to these abiotic stresses.…”

Section: Introductionmentioning

confidence: 99%

Influence of exogenous L-proline on embryogenic cultures of larch (Larix leptoeuropaeaDengler), sitka spruce (Picea sitchensis(Bong.) Carr.) and oak (Quercus roburL.) subjected to cold and salt stress

Gleeson

Lelu‐Walter²,

Parkinson

2004

Ann. For. Sci.

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“…For instance, freezing stress tolerance was increased by ABA in both plants (Chen et al, 1983;Huhhes et al, 1992) and cell cultures (Reaney and Gusta, 1987;Churchill et al, 1992). ABA may also be associated with resistance to drought (Kahn et al, 1993), to chilling (Xin and Li, 1993) and to desiccation (Ooms et al, 1986). These findings indicate sugar and ABA, both related to stress, might also be related to the induction of somatic embryos.…”

Section: Introductionmentioning

confidence: 86%

Embryo induction and regeneration from root explants of Medicago truncatula after osmotic pre-treatment

Iantcheva

Slavov

Prinsen

et al. 2005

Plant Cell Tiss Organ Cult

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Embryo induction and regeneration from suspension culture of two Medicago truncatula cvs. (cv. R 108 1 and cv. Jemalong) have been studied. The influence of osmotic pre-treatment (1 M solution of sucrose for 48 h and 72 h) of roots as an initial explant, on embryogenic efficiency of the suspension culture was assessed. In comparison to the control, the level of abscisic acid (ABA) increased significantly after osmotic stress. The increased ABA level did not correlate with the induction of embryogenesis neither with the improved embryogenic potential of cv. R 108 1. The shortest regeneration period and the highest percent of conversion to plants were found in cv. R 108 1 after 72-h pre-treatment of roots. The efficiency of somatic embryo conversion was less after 48-h pre-treatment and much less for the untreated control. Osmotic stress did not positively affect the process of embryogenesis from root explants of cv. Jemalong, confirming its cultivar dependence. A single cell suspension fraction was produced in both Medicago trunacatula cvs. during the somatic embryo maturation stage. A higher embryogenic potential than the initial suspension culture was established only for the cell suspension originating from 72-h pre-treated roots of cv. R 108 1. The data confirms that the process of somatic embryo induction and embryo conversion from root explants of cv. R 108 1 could be promoted by osmotic stress pre-treatment.

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“…Proline is one of the important organic osmolytes in plant cells, and its rapid accumulation has been positively correlated with chilling stress tolerance in plants (Xin and Li 1993). It was found that the proline content in leaves of strawberry increased under chilling stress and decreased after rewarming (Table 1).…”

Section: ⎯⎯⎯⎯mentioning

confidence: 97%

Hexanoic acid 2-(diethylamino)ethyl ester enhances chilling tolerance in strawberry seedlings by impact on photosynthesis and antioxidants

Maimaiti

Mou

et al. 2011

Biologia plant.

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Strawberry (Fragaria ananassa Duch.) seedlings were pretreated with hexanoic acid 2-(diethylamino)ethyl ester (DA-6) in concentrations of 0, 10, 20 and 40 mg dm -3 and then subjected to chilling and rewarming. The effects of applied DA-6 on the generation of reactive oxygen species (O 2 -, H 2 O 2 ), lipid peroxidation, proline accumulation and photosynthesis were evaluated. Pretreatment with DA-6 alleviated the inhibition of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activities caused by chilling stress thus reducing O 2 -and H 2 O 2 production and lipid peroxidation in pretreated plants. DA-6 pretreatment also accelerated accumulation of proline and reduce the decrease in proline content after rewarming. DA-6 pretreatment increases maximum quantum yield of photosystem 2 (F v /F m ), actual photochemical efficiency of photosystem 2 (Φ PS2 ), photochemical quenching coefficient (qP) and net photosynthetic rate (P N ) and decreases non-photochemical quenching coefficient (qNP) of the seedlings under chilling stress. DA-6 pretreatment also increased the recovery rate of photosynthesis after rewarming.Additional key words: ascorbate peroxidase, catalase, chlorophyll fluorescence, Fragaria ananassa, net photosynthetic rate, superoxide dismutase.

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Relationship between Proline and Abscisic Acid in the Induction of Chilling Tolerance in Maize Suspension-Cultured Cells

Cited by 56 publications

References 16 publications

Influence of exogenous L-proline on embryogenic cultures of larch (Larix leptoeuropaeaDengler), sitka spruce (Picea sitchensis(Bong.) Carr.) and oak (Quercus roburL.) subjected to cold and salt stress

Influence of exogenous L-proline on embryogenic cultures of larch (Larix leptoeuropaeaDengler), sitka spruce (Picea sitchensis(Bong.) Carr.) and oak (Quercus roburL.) subjected to cold and salt stress

Embryo induction and regeneration from root explants of Medicago truncatula after osmotic pre-treatment

Hexanoic acid 2-(diethylamino)ethyl ester enhances chilling tolerance in strawberry seedlings by impact on photosynthesis and antioxidants

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