Alterations in activities of acid phosphatase, alkaline phosphatase, ATPase and ATP content in response to seasonally varying Pi status in okra (Abelmoschus esculentus).
J Environ Biol
;
2004 Apr; 25(2): 181-5
Artículo
en Inglés
| IMSEAR
| ID: sea-113958
ABSTRACT
Phosphorus (P) is the second most important macronutrient for plant growth. Plants exhibit numerous physiological and metabolic adaptations in response to seasonal variations in phosphorus content. Activities of acid and alkaline phosphatases, ATPase and ATP content were studied in summer, rainy and winter seasons at two different developmental stages (28 and 58 days after sowing) in Okra. Activities of both acid and alkaline phosphatases increased manifold in winter to cope up with low phosphorus content. ATP content and ATPase activity were high in summer signifying an active metabolic period. Phosphorus deficiency is characterized by low ATP content and ATPase activity (which are in turn partly responsible for a drastic reduction in growth and yield) and enhanced activities of acid and alkaline phosphatases which increase the availability of P in P-deficient seasons.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Fósforo
/
Estaciones del Año
/
Fosfatasa Ácida
/
Adaptación Fisiológica
/
Adenosina Trifosfatasas
/
Abelmoschus
/
Fosfatasa Alcalina
Idioma:
Inglés
Revista:
J Environ Biol
Año:
2004
Tipo del documento:
Artículo
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