Exogenous ABA Increases Yield in Field-Grown Wheat with Moderate Water Restriction

Travaglia, Claudia; Reinoso, Herminda; Cohen, Ana Carmen; Luna, Claudia Verónica; Tommasino, Ezequiel; Castillo, Carlos

doi:10.1007/s00344-010-9147-y

Cited by 83 publications

(65 citation statements)

References 28 publications

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“…It has been reported in literature that ABA stops the photosynthesis of different species under controlled conditions (Daie & Campbell, 1981;Xu et al, 1995;Gong et al, 1998;Wilkinson & Davies, 2002;Reddy et al, 2004;Liu et al, 2005); but our results showed an increase in the content of dry matter that increases in correlation with chlorophyll levels (Travaglia et al, 2009). These results are similar to those we observed during three years of essays with field-grown wheat treated with ABA; the treated plants showed higher levels of chlorophyll and maintained green leaves longer (5 to 10 days) than control plants (Travaglia et al, 2010). Longer photosynthetic activity should benefit higher accumulation of dry matter in harvest products (Thomas & Howarth, 2000).…”

Section: Aba Promotes Yield In Field-cultured Soybeansupporting

confidence: 90%

“…In papers related with fieldgrown wheat under water deficit, it is observed a similar behavior. The ABA treated plants www.intechopen.com closed their stomata immediately after the hormonal application, so decreasing the conductance and the rate of transpiration, but 21 days after the ABA treatment leaf conductance and transpiration rate increased more than in control plants (Travaglia et al, 2010). As well, in front of a water deficiency, the treatment with ABA had a long time effect on to the stomata behavior, maintaining some ostiolar aperture in the hours of high light while stomata in control plants are closed.…”

Section: Aba Promotes Yield In Field-cultured Soybeanmentioning

confidence: 92%

“…When water stress was moderated, ABA not only increased the weight but also the number of grains. Such effect was reflected in a yield increase that ranged between 11 and 34 % (Travaglia et al, 2010). Since the food value of grain wheat relays on the protein content, it is not only necessary to achieve higher yields but also to maintain a high percentage of protein in the grain.…”

Section: Aba Promotes Yield In Field-cultured Soybeanmentioning

confidence: 99%

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ABA Increased Soybean Yield by Enhancing Production of Carbohydrates and Their Allocation in Seed

Reinoso¹,

Travaglia²

2011

Soybean - Biochemistry, Chemistry and Physiology

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Section: Aba Promotes Yield In Field-cultured Soybeansupporting

confidence: 90%

Section: Aba Promotes Yield In Field-cultured Soybeanmentioning

confidence: 92%

Section: Aba Promotes Yield In Field-cultured Soybeanmentioning

confidence: 99%

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ABA Increased Soybean Yield by Enhancing Production of Carbohydrates and Their Allocation in Seed

Reinoso¹,

Travaglia²

2011

Soybean - Biochemistry, Chemistry and Physiology

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“…Grain hormone content or exogenous application of hormone is significantly correlated to grain-filling rate by modulating the sink strength of the grains and varies with grain-filling stage (Yang et al 2000a, b;Travaglia et al 2010). Grain cytokinin levels are maximal immediately after anthesis, followed by peaks of GA and auxin during the linear growth phase, and then of ethylene and ABA as the grain mature.…”

Section: Hormone Signalingmentioning

confidence: 97%

Signal transduction during wheat grain development

Kong

Guo

Sun

2015

Planta

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This review examines the signaling pathways from the developmental and environmental point of view and the interactions among external conditions, hormonal regulations, and sugarsensing in wheat. Grain development is the key phase of reproductive growth that is closely associated with vegetative organ senescence, initiation of grain filling, pre-stored assimilates remobilization, and maturation. Senescence is characterized by loss of chlorophyll and the degradation of proteins, nucleic acids, lipids as well as nutrient exports to the sink. The initiation and progression of vegetative organ senescence are under the control of an array of environmental signals (such as biotic and abiotic stresses, darkness, and nutrient availability) and endogenous factors (including aging, multiple hormones, and sugar availability). This review will discuss the major breakthroughs in signal transduction for the wheat (Triticum aestivum) grain development achieved in the past several years, with focuses on the regulation of senescence, reserves remobilization and biosynthesis of main components of the grain. Different mechanisms of diverse signals in controlling different phrases of wheat grain development, and cross talks between different signaling pathways will also be discussed. For perspectives, key signaling networks for grain development remain to be elucidated, including cross talks and the interactions between various environmental factors and internal signals.

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“…The role of auxin in regulation of leaf senescence might be linked with other hormones and metabolic flux (Schippers et al 2007). The leaves of the ABA-treated wheat plants remained green longer than the leaves of control plants (Travaglia et al 2010). ABA treatment resulted in H 2 O 2 production in rice leaves, which preceded the occurrence of leaf senescence (Hung and Kao 2004).…”

Section: Introductionmentioning

confidence: 96%

Application of abscisic acid regulates antioxidant enzymes activities and modulates endosperm cell division in winter wheat

et al. 2016

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Effects of exogenous abscisic acid (ABA) on antioxidant enzymes activities and endosperm cell division of two wheat (Triticum aestivum L.) cultivars were investigated. Results showed that the superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activity in flag leaves of both cultivars is elevated by application of ABA and it is correlated with less membrane damage: lower malondialdehyde (MDA). Exogenous ABA significantly increased endosperm cell number and endosperm division rate, finally increased grain weight. Although ABA treatment decreased endogenous zeatin riboside (ZR) content in flag leaves from 7 to 28 days after anthesis (DAA), indole acetic acid (IAA) levels were significantly increased by spraying with ABA. Correlation analysis showed that endogenous contents of ZR, ABA, and IAA in grains were positively and significantly correlated with grain-filling rate. IAA content in leaves was positively and significantly correlated with grain-filling rate. The results suggested that increased grain weight of ABA-treated plants was due to higher antioxidant abilities of flag leaf resulting in longer maintenance of photosynthetic capacity and higher grain-filling rate.Key words: hormones, antioxidant enzymes, malondialdehyde, grain filling, staygreen, Triticum aestivum L.Résumé : Les auteurs ont examiné les effets de l'acide abscissique (AA) exogène sur l'activité des enzymes antioxydants et la division des cellules dans l'endosperme de deux cultivars de blé (Triticum aestivum L.). Les résultats indiquent que l'application d'AA augmente l'activité de la superoxyde dismutase (SOD), de la peroxydase (POD) et de la catalase (CAT) dans les feuilles paniculaires des deux variétés, et que cette hausse est corrélée à des dommages moins importants à la membrane cellulaire, à savoir une concentration plus faible de malondialdéhyde (MDA). L'AA exogène accroît le nombre et la multiplication des cellules dans l'endosperme de façon significative, ce qui a pour conséquence de donner un grain plus lourd. Bien que l'application d'AA diminue la concentration de zéatine riboside (ZR) endogène dans les feuilles paniculaires sept à 28 jours après l'anthèse, la pulvérisation d'AA augmente significativement la celle d'acide indole acétique (IAA). L'analyse des corrélations révèle que la teneur endogène en ZR, AA, et IAA du grain est positivement et significativement corrélée au remplissage du grain. La concentration d'IAA dans les feuilles présente une corrélation positive significative avec ce facteur. Les résultats donnent à penser que le poids plus élevé du grain des plants traités à l'AA est attribuable au meilleur pouvoir antioxydant de la feuille paniculaire, qui permet à la photosynthèse de se poursuivre plus longtemps et au grain de se remplir davantage. [Traduit par la Rédaction]

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Exogenous ABA Increases Yield in Field-Grown Wheat with Moderate Water Restriction

Cited by 83 publications

References 28 publications

ABA Increased Soybean Yield by Enhancing Production of Carbohydrates and Their Allocation in Seed

ABA Increased Soybean Yield by Enhancing Production of Carbohydrates and Their Allocation in Seed

Signal transduction during wheat grain development

Application of abscisic acid regulates antioxidant enzymes activities and modulates endosperm cell division in winter wheat

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