Handbook of Plant and Crop Physiology

TJ Buckhout. ATP-dependent Ca^2 transport in endoplasmic reticulum isolated from roots of Lepidium sativumL. [gardencress]. Pl ...

BJ Barkla, E Blumwald. Identification of a 170-kDa protein associated with the vacuolar NaHantiport of Beta vulgaris.Proc Nat ...

J Ruiz-Cristin, DP Briskin. Characterization of a H/NO 3 symport associated with plasma membrane vesicles of maize roots usin ...

JF Mcgrath, AD Robson. The movement of zinc through excised stems of seedlings of Pinus radiataD. Don. Ann Bot 54:231–242, 1984 ...

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17 Sodium: A Functional Nutrient in Plants G. V. Subbarao* and Gary W. Stutte Dynamac Corporation, Kennedy Space Center, Florida ...

stream for regulating osmotic pressure within the cells and body fluids, where it protects against ex- cessive loss of water [11 ...

II. SODIUM AND ESSENTIALITY According to Arnon and Stout [1], the following conditions should be met for an element to be consid ...

III. CONCEPT OF “FUNCTIONAL NUTRIENT” To overcome the difficulty associated with this limited definition of “essentiality,” Nich ...

see Chapter 44 by Subbarao and Johansen). Physiological mechanisms that regulate Na levels of these na- trophobes are addressed ...

ME (malic enzyme) type (such as Zea maysandSorghum bicolor), the H/pyruvate cotransport system operates instead of the Na/pyru ...

similar to that of the averaged whole cell [88]. Conceptually, at least 90% of the plant’s K (when grown under K-sufficient cond ...

Stomatal Function In most plant species, Kis the dominant cation responsible for turgor changes in guard cells during ion-ind ...

homeostasis. Part of this newly formed K-malate may be retranslocated to the roots for subsequent reuti- lization of K as a coun ...

ferentially. In rice, four isozymes of malic dehydrogenase have been reported [138] and several isozymes of-amylase have been i ...

Among nonchenopods, tomato has been reported to respond positively to additional Na in the nutri- ent medium [155]. For example, ...

374 SUBBARAO ET AL. TABLE 5 Effect of Sodium Applied as a Nutrient on Several Crops Degree of benefit in Degree of benefit in De ...

the critical leaf K levels were progressively reduced from 27 g kg^1 dwt in plants not fertilized with Na to 5 g kg^1 dwt in p ...

VIII. SODIUM, OTHER PERSPECTIVES A. Sodium Tissue Levels Regardless of Na supply, most crops translocate very little Na to repro ...

The Na requirement for lactating dairy cows is approximately 2 g kg^1 dwt in forage [12], which is higher than the average Na c ...