Comparison of the energy efficiency of photosynthesis in plants: Similarity of shade-requiring species to high-yielding cultivars

Тип публикации: статья из журнала

Год издания: 1997

Ключевые слова: delayed fluorescence; energy efficiency; photosynthesis; productivity, Delayed fluorescence, Energy efficiency, Photosynthesis, Productivity

Аннотация: Wild shade-requiring and light-requiring species, light-adapted and shade-adapted phenotypes of the same species, as well as wheat, radish, and amaranth cultivars different in productivities were studied. Energy efficiency of photosynthesis (EEP) was calculated from characteristics of light-induced changes in the yield of the delayed fluorescence of chlorophyll, and expressed as a fraction of thylakoid membrane potential utilized in dark reactions of photosynthesis. EEP was reliably (P > 95%) higher in shade-requiring species and shade phenotypes, than in light-loving species and light phenotypes (on average, 0.73 and 0.61, respectively). In the three groups of crop plants, a higher EEP was found in high-yield varieties (0.76 and 0.71 in wheat; 0.87 and 0.76 in radish; and 0.79 and 0.65 in amaranth, for low-and high-yield cultivars, respectively). Characteristics of the light-induced changes in delayed fluorescence yield in shade-tolerant plants were shown to be similar to those in high-yield plants. Apparently, the changes in photosynthetic apparatus brought about by selection for high productivity are similar to those associated with plant adaptation to low light intensities.

Ссылки на полный текст

Издание

Журнал: RUSSIAN JOURNAL OF PLANT PHYSIOLOGY

Выпуск журнала: Vol. 44, Is. 6

Номера страниц: 731-736

ISSN журнала: 10214437

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA

Авторы

Вхождение в базы данных

Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.

Вы можете отметить интересные фрагменты текста, которые будут доступны по уникальной ссылке в адресной строке браузера.