A Study of the Characteristics of the Stomata and Guard Cell of 33 Mulberry Clones

When selecting mulberry to plant, consideration should be given to producing a uniform yield even in the event the local water supply may be inconsistent throughout any given year. The number of stomata and guard cell which appear in the driest time of the year must be evaluated. In this research full grown leaves of 33 clones were randomly collected from the Queen Sirikit Sericulture Center in Udon-Thani. Each sample was dried, and small pieces from the terminal part of the middle vein were cut into small square shaped forms. The samples both from ventral side and dorsal side of each leaf were stuck on a stub, gold coated and examined by using SEM. The number of stomata was counted.The length of stomata and guard cells was measured. The mean and standard deviation were analyzed. The results found that Hang Chang had very poor stomata at 608.33±42.49 in contrast with Som Yai that had plenty stomata/mm² at 3,075±20.41. Phikulthong had the shortest stomata length at 4.614±1.40 in contrast and Kaew Chonnabo had the longest stomata length at 8.516±2.11 μm. From the results it could be concluded that 5 clones of mulberry used small amounts of water. Any mulberry plantation should consider the following for planting: Hang Chang Phikul Thong, Fai, and Kaew Krasang. Other clones of mulberry should be planted where irrigation is consisten throughout the year.

Acute monoblastic leukemia in a FeLV-positive cat

A 1.6-year-old male domestic short hair cat was brought to the Veterinary Medical Teaching Hospital, Kasetsart University, with signs of severe anemia, depression, and general lymph node enlargement. Complete blood count revealed leukocytosis and massive undifferentiated blasts. Testing for antibodies specific to feline leukemia virus (FeLV) was positive, and FeLV nucleic acid was confirmed by nested polymerase chain reaction. Base on cytochemistry and ultrastructure, the cat was diagnosed with acute monoblastic leukemia.

Hematology, cytochemistry and ultrastructure of blood cells in fishing cat (Felis viverrina)

Hematological, cytochemical and ultrastructural features of blood cells in fishing cat (Felis viverrina) were evaluated using complete blood cell counts with routine and cytochemical blood stains, and scanning and transmission electron microscopy. No statistically significant difference was found in different genders of this animal. Unique features of blood cells in this animal were identified in hematological, cytochemical and ultrastructural studies. This study contributes to broaden hematological resources in wildlife animals and provides a guideline for identification of blood cells in the fishing cat.