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Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines
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| Zeitschriftentitel: | BIO Web of Conferences |
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| Personen und Körperschaften: | , , , , , , , , , , |
| In: | BIO Web of Conferences, 13, 2019, S. 03007 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
EDP Sciences
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| Schlagwörter: |
| author_facet |
Falchi, Rachele Petrussa, Elisa Zancani, Marco Casolo, Valentino Beraldo, Paola Nardini, Andrea Sivilotti, Paolo Calderan, Alberto Herrera, Jose Carlos Peterlunger, Enrico Braidot, Enrico Falchi, Rachele Petrussa, Elisa Zancani, Marco Casolo, Valentino Beraldo, Paola Nardini, Andrea Sivilotti, Paolo Calderan, Alberto Herrera, Jose Carlos Peterlunger, Enrico Braidot, Enrico |
|---|---|
| author |
Falchi, Rachele Petrussa, Elisa Zancani, Marco Casolo, Valentino Beraldo, Paola Nardini, Andrea Sivilotti, Paolo Calderan, Alberto Herrera, Jose Carlos Peterlunger, Enrico Braidot, Enrico |
| spellingShingle |
Falchi, Rachele Petrussa, Elisa Zancani, Marco Casolo, Valentino Beraldo, Paola Nardini, Andrea Sivilotti, Paolo Calderan, Alberto Herrera, Jose Carlos Peterlunger, Enrico Braidot, Enrico BIO Web of Conferences Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines General Medicine |
| author_sort |
falchi, rachele |
| spelling |
Falchi, Rachele Petrussa, Elisa Zancani, Marco Casolo, Valentino Beraldo, Paola Nardini, Andrea Sivilotti, Paolo Calderan, Alberto Herrera, Jose Carlos Peterlunger, Enrico Braidot, Enrico 2117-4458 EDP Sciences General Medicine http://dx.doi.org/10.1051/bioconf/20191303007 <jats:p>Grapevines store non-structural carbohydrates (NSC) during late summer to sustain plant development at the onset of the following spring’s growth. Starch is the main stored carbohydrate, found in the wood-ray parenchyma of roots and canes. Although the relationship between hydraulic and plant photosynthetic performance is well-recognized, little research has been done on the long-term effects of drought in grapevines adopting different strategies to cope with water stress (i.e. isohydric and anisohydric). We performed our study by exposing two different grape cultivars (Syrah and Cabernet Sauvignon) to a short but severe drought stress, at two stages of the growing season (July and September). No marked differences in the physiological and hydraulic responses of the two varieties were found, probably due to our experimental conditions. However, anatomical and biochemical characterization of overwintering canes pointed out several interesting outcomes. We found a significant and parallel increase of starch and medullar ray number in both cultivars exposed to early water stress. We hypothesize that stressed vines limited their carbon allocation to growth, while shifting it to starch accumulation, with a most evident effect in the period of intense photosynthetic activity. We also speculate that a different aptitude to osmotic adjustment may underlay variation in starch increase and the specific involvement of bark NSC in the two cultivars.</jats:p> Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines BIO Web of Conferences |
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| title |
Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_unstemmed |
Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_full |
Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_fullStr |
Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_full_unstemmed |
Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_short |
Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_sort |
summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering cabernet sauvignon and syrah vines |
| topic |
General Medicine |
| url |
http://dx.doi.org/10.1051/bioconf/20191303007 |
| publishDate |
2019 |
| physical |
03007 |
| description |
<jats:p>Grapevines store non-structural carbohydrates (NSC) during late summer to sustain plant development at the onset of the following spring’s growth. Starch is the main stored carbohydrate, found in the wood-ray parenchyma of roots and canes. Although the relationship between hydraulic and plant photosynthetic performance is well-recognized, little research has been done on the long-term effects of drought in grapevines adopting different strategies to cope with water stress (i.e. isohydric and anisohydric). We performed our study by exposing two different grape cultivars (Syrah and Cabernet Sauvignon) to a short but severe drought stress, at two stages of the growing season (July and September). No marked differences in the physiological and hydraulic responses of the two varieties were found, probably due to our experimental conditions. However, anatomical and biochemical characterization of overwintering canes pointed out several interesting outcomes. We found a significant and parallel increase of starch and medullar ray number in both cultivars exposed to early water stress. We hypothesize that stressed vines limited their carbon allocation to growth, while shifting it to starch accumulation, with a most evident effect in the period of intense photosynthetic activity. We also speculate that a different aptitude to osmotic adjustment may underlay variation in starch increase and the specific involvement of bark NSC in the two cultivars.</jats:p> |
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| author | Falchi, Rachele, Petrussa, Elisa, Zancani, Marco, Casolo, Valentino, Beraldo, Paola, Nardini, Andrea, Sivilotti, Paolo, Calderan, Alberto, Herrera, Jose Carlos, Peterlunger, Enrico, Braidot, Enrico |
| author_facet | Falchi, Rachele, Petrussa, Elisa, Zancani, Marco, Casolo, Valentino, Beraldo, Paola, Nardini, Andrea, Sivilotti, Paolo, Calderan, Alberto, Herrera, Jose Carlos, Peterlunger, Enrico, Braidot, Enrico, Falchi, Rachele, Petrussa, Elisa, Zancani, Marco, Casolo, Valentino, Beraldo, Paola, Nardini, Andrea, Sivilotti, Paolo, Calderan, Alberto, Herrera, Jose Carlos, Peterlunger, Enrico, Braidot, Enrico |
| author_sort | falchi, rachele |
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| description | <jats:p>Grapevines store non-structural carbohydrates (NSC) during late summer to sustain plant development at the onset of the following spring’s growth. Starch is the main stored carbohydrate, found in the wood-ray parenchyma of roots and canes. Although the relationship between hydraulic and plant photosynthetic performance is well-recognized, little research has been done on the long-term effects of drought in grapevines adopting different strategies to cope with water stress (i.e. isohydric and anisohydric). We performed our study by exposing two different grape cultivars (Syrah and Cabernet Sauvignon) to a short but severe drought stress, at two stages of the growing season (July and September). No marked differences in the physiological and hydraulic responses of the two varieties were found, probably due to our experimental conditions. However, anatomical and biochemical characterization of overwintering canes pointed out several interesting outcomes. We found a significant and parallel increase of starch and medullar ray number in both cultivars exposed to early water stress. We hypothesize that stressed vines limited their carbon allocation to growth, while shifting it to starch accumulation, with a most evident effect in the period of intense photosynthetic activity. We also speculate that a different aptitude to osmotic adjustment may underlay variation in starch increase and the specific involvement of bark NSC in the two cultivars.</jats:p> |
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| issn | 2117-4458 |
| issn_str_mv | 2117-4458 |
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| spelling | Falchi, Rachele Petrussa, Elisa Zancani, Marco Casolo, Valentino Beraldo, Paola Nardini, Andrea Sivilotti, Paolo Calderan, Alberto Herrera, Jose Carlos Peterlunger, Enrico Braidot, Enrico 2117-4458 EDP Sciences General Medicine http://dx.doi.org/10.1051/bioconf/20191303007 <jats:p>Grapevines store non-structural carbohydrates (NSC) during late summer to sustain plant development at the onset of the following spring’s growth. Starch is the main stored carbohydrate, found in the wood-ray parenchyma of roots and canes. Although the relationship between hydraulic and plant photosynthetic performance is well-recognized, little research has been done on the long-term effects of drought in grapevines adopting different strategies to cope with water stress (i.e. isohydric and anisohydric). We performed our study by exposing two different grape cultivars (Syrah and Cabernet Sauvignon) to a short but severe drought stress, at two stages of the growing season (July and September). No marked differences in the physiological and hydraulic responses of the two varieties were found, probably due to our experimental conditions. However, anatomical and biochemical characterization of overwintering canes pointed out several interesting outcomes. We found a significant and parallel increase of starch and medullar ray number in both cultivars exposed to early water stress. We hypothesize that stressed vines limited their carbon allocation to growth, while shifting it to starch accumulation, with a most evident effect in the period of intense photosynthetic activity. We also speculate that a different aptitude to osmotic adjustment may underlay variation in starch increase and the specific involvement of bark NSC in the two cultivars.</jats:p> Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines BIO Web of Conferences |
| spellingShingle | Falchi, Rachele, Petrussa, Elisa, Zancani, Marco, Casolo, Valentino, Beraldo, Paola, Nardini, Andrea, Sivilotti, Paolo, Calderan, Alberto, Herrera, Jose Carlos, Peterlunger, Enrico, Braidot, Enrico, BIO Web of Conferences, Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines, General Medicine |
| title | Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_full | Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_fullStr | Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_full_unstemmed | Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_short | Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| title_sort | summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering cabernet sauvignon and syrah vines |
| title_unstemmed | Summer drought stress: differential effects on cane anatomy and non-structural carbohydrate content in overwintering Cabernet Sauvignon and Syrah vines |
| topic | General Medicine |
| url | http://dx.doi.org/10.1051/bioconf/20191303007 |