Studies on Auxin-membrane Permeability Relations in Fruit and Leaf Tissues

Sacher, Joseph A.

doi:10.1104/pp.34.4.365

Cited by 56 publications

(21 citation statements)

References 13 publications

(11 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was probably related to the clogging of the air spaces by the cell exudate. Sacher (18) reported extensive liquid logging in senescent cells of bean endocarp and some fruits.…”

Section: Resultsmentioning

confidence: 99%

Respiration & Internal Atmosphere of Avocado Fruit

1963

View full text Add to dashboard Cite

show abstract

“…It was probably related to the clogging of the air spaces by the cell exudate. Sacher (18) reported extensive liquid logging in senescent cells of bean endocarp and some fruits.…”

Section: Resultsmentioning

confidence: 99%

Respiration & Internal Atmosphere of Avocado Fruit

1963

View full text Add to dashboard Cite

show abstract

“…root, and leaf is that the TPNH/TPN ratio in every organ decreases accompanying that organ's senescence. The effect of in(loleacetic acid in (lelaying senescence has often been reported (21). According to Marre aind Bianchetti (17), the value of the TPNH/TPN ratio is increased by indoleacetic acid.…”

Section: Methodsmentioning

confidence: 99%

Pyridine Nucleotide Content in the Higher Plant. Effect of Age of Tissue

Yamamoto

1963

Plant Physiol.

View full text Add to dashboard Cite

We noticed in previous work (18, 28) that, in the cotyledon of Vigna sesquipedalis in the germination stage, isocitric acid may be metabolized preferentially through the glyoxylate cycle rather than the TCA3 cycle because of the lack of endogenous TPN; whereas in the growing parts such as plumule, hypocotyl. and radicle, it is probably metabolized through the TCA cycle in accordance with an expected high level of TPN. Thus the TPN level was an important factor for selection of the metabolic pattern. However, the importance of this finding will depend upon whether or not it is a general phenomenon in all plants.Recently the domiinancy of the glyoxylate cycle in the storage organ. i.e.. cotyledlons in some kinds of seeds and endosperm in others., has been indlicated for various plants by several workers (2,4,5,6,16,26,27, 28,29). It is, therefore, tempting to compare the endogenous TPN concentration of the storage organ with that of the growing part in various plants.However, further problems have arisen concerning the above.I. Only in cases where the levels of PN are a rate-limiting factor for the plant metabolism, will those levels play a key role. Thus the first problem is whether TPN+TPNH and DPN+DPNH amounts are a rate-limiting factor for the metabolism of various plant tissues.II. The storage organ will generally be older in physiological age than the growing part. Comparisons between the storage organ and the growing part in metabolic activities (13,18,19,24, 28)

show abstract

“…Some reports have indicated that auxins may also be able to delay senescence. For example, a-naphthalene acetic acid retards the senescence of Rhoeo and Mesetnhryanthemum leaf segments (Sacher, 1959) and 2,4-D butyl ester slows down protein breakdown of detached leaves of Prunus serrulata (Osborne & Hallaway, 1964). However, there are numerous cases in which auxins are not very powerful in their effects on senescence, and high concentrations have to be used compared with cytokinins.…”

Section: Plant Grozcth Regulators (A) Cytokininsmentioning

confidence: 99%

Gene expression during leaf senescence

1994

View full text Add to dashboard Cite

SUMMARY Leaf senescence is a hiphly‐controlled sequence of events comprising the final stage of development. Cells remain viable during the process and new gene expression is required. There is some similarity between senescence in plants and programmed cell death in animals. In this review, different classes of senescence‐related genes are defined and progress towards isolating such genes is reported. A range of internal and external factors which appear to cause leaf senescence is considered and various models for the mechanism of senescence‐ initiation are described. The current understanding of senescence at the wrganelle and molecular levels is presented. Finally, same ideas are mooted as to why senescence occurs and why it should be studied further.

show abstract

Studies on Auxin-membrane Permeability Relations in Fruit and Leaf Tissues

Abstract: In a previous paper (22)

Cited by 56 publications

References 13 publications

Respiration & Internal Atmosphere of Avocado Fruit

Respiration & Internal Atmosphere of Avocado Fruit

Pyridine Nucleotide Content in the Higher Plant. Effect of Age of Tissue

Gene expression during leaf senescence

Contact Info

Product

Resources

About