Abstract:
:The effect of trophic competition between vegetative sources and reproductive sinks on grapevine (Vitis vinifera L.) shoot development was analyzed. Two international cultivars (Grenache N and Syrah) grown in pots, which were well watered, were studied. A large range of trophic competition levels was obtained by modifying the cluster loads per plant. An analytical breakdown of the branching system was used to analyze the effects of trophic competition. Phytomer production on the primary axis and the probability and timing of axillary budburst were not affected by trophic competition. However, the duration of development and leaf production rate for secondary axes were both significantly affected. The impact of trophic competition differed within the P0-P1-P2 architectural module, locally within the shoot and between cultivars. Trophic competition reduced the organogenesis of secondary axes most strongly close to clusters, on P1-P2 phytomers and in Grenache N. Based on these results, a modeling approach simulating sink strength variation and the local effects of sink proximity would be more relevant than a model considering only development as a function of thermal time or the global distribution of available biomass.
journal_name
Physiol Plantjournal_title
Physiologia plantarumauthors
Pallas B,Louarn G,Christophe A,Lebon E,Lecoeur Jdoi
10.1111/j.1399-3054.2008.01100.xsubject
Has Abstractpub_date
2008-09-01 00:00:00pages
49-63issue
1eissn
0031-9317issn
1399-3054pii
PPL1100journal_volume
134pub_type
杂志文章abstract::Regional climate change in Antarctica would favor the carbon assimilation of Antarctic vascular plants, since rising temperatures are approaching their photosynthetic optimum (10-19°C). This could be detrimental for photoprotection mechanisms, mainly those associated with thermal dissipation, making plants more suscep...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12739
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journal_title:Physiologia plantarum
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doi:10.1034/j.1399-3054.2002.1150119.x
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abstract::Peroxidase (POD, EC 1.11.1.7) activity, cellular localization and isozyme patterns were investigated in the seed integument, cotyledon and embryo axis of Brassica oleracea cv. Cappuccio during pregermination and seedling growth. Seeds started to germinate after 24 h of imbibition. POD activity was localized in the pig...
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abstract::The lack of knowledge about the tissue and subcellular distribution of polyamines (PAs) and the enzymes involved in their metabolism remains one of the main obstacles in our understanding of the biological role of PAs in plants. Arginine decarboxylase (ADC; EC 4.1.1.9) is a key enzyme in polyamine biosynthesis in plan...
journal_title:Physiologia plantarum
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journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2002.1160203.x
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abstract::Betaine aldehyde dehydrogenase (BADH; EC 1.2.1.8) is an important enzyme that catalyzes the last step in the synthesis of glycine betaine, a compatible solute accumulated by many plants under various abiotic stresses. In barley (Hordeum vulgare L.), we reported previously the existence of two BADH genes (BBD1 and BBD2...
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pub_type: 杂志文章
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journal_title:Physiologia plantarum
pub_type: 杂志文章,评审
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更新日期:2011-05-01 00:00:00
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journal_title:Physiologia plantarum
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Physiologia plantarum
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journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2003.00068.x
更新日期:2003-05-01 00:00:00
abstract::In a previous work, it was shown that bicarbonate (one of the most important factors causing Fe chlorosis in Strategy I plants) can limit the expression of several genes involved in Fe acquisition. Hypoxia is considered another important factor causing Fe chlorosis, mainly on calcareous soils. However, to date it is n...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12076
更新日期:2014-01-01 00:00:00
abstract::Lisianthus (Eustoma grandiflorum), a leading plant in the cut flower industry, is scentless. Here we show that lisianthus flowers have potential to produce several fragrant benzenoid-phenylpropanoids when substrate availability is not limited. To enable hyperaccumulation of substrates for the production of volatile be...
journal_title:Physiologia plantarum
pub_type: 杂志文章
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journal_title:Physiologia plantarum
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journal_title:Physiologia plantarum
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doi:10.1034/j.1399-3054.2002.1140219.x
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journal_title:Physiologia plantarum
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journal_title:Physiologia plantarum
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journal_title:Physiologia plantarum
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