This review reports the physiological and metabolic changes in plants during development under elevated atmospheric carbon dioxide concentration and/or limited-nitrogen supply in order to establish their effects on leaf senescence induction. Elevated CO2 concentration and nitrogen supply modify gene expression, protein content and composition, various aspects of photosynthesis, sugar metabolism, nitrogen metabolism, and redox state in plants. Elevated CO2 usually causes sugar accumulation and decreased nitrogen content in plant leaves, leading to imbalanced C/N ratio in mature leaves, which is one of the main factors behind premature senescence in leaves. Elevated CO2 and low nitrogen decrease activities of some antioxidant enzymes and thus increase H2O2 production. These changes lead to oxidative stress that results in the degradation of photosynthetic pigments and eventually induce senescence. However, this accelerated leaf senescence under conditions of elevated CO2 and limited nitrogen can mobilize nutrients to growing organs and thus ensure their functionality.
机构:
Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Aoyama, Shoki
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Huarancca Reyes, Thais
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Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Huarancca Reyes, Thais
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Guglielminetti, Lorenzo
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Lu, Yu
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Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Lu, Yu
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Morita, Yoshie
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Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Morita, Yoshie
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Sato, Takeo
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Yamaguchi, Junji
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h-index: 0
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Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
机构:
Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Aoyama, Shoki
;
Huarancca Reyes, Thais
论文数: 0引用数: 0
h-index: 0
机构:
Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Huarancca Reyes, Thais
;
论文数: 引用数:
h-index:
机构:
Guglielminetti, Lorenzo
;
Lu, Yu
论文数: 0引用数: 0
h-index: 0
机构:
Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Lu, Yu
;
Morita, Yoshie
论文数: 0引用数: 0
h-index: 0
机构:
Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Morita, Yoshie
;
论文数: 引用数:
h-index:
机构:
Sato, Takeo
;
Yamaguchi, Junji
论文数: 0引用数: 0
h-index: 0
机构:
Hokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan
Hokkaido Univ, Grad Sch Life Sci, Kita Ku, Sapporo, Hokkaido 0600810, JapanHokkaido Univ, Fac Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan